Citrus Swallowtail

EASY GARDEN BUTTERFLIES

Citrus SwallowtailPapilio demodocus demodocus

The Citrus Swallowtail is one of the Papilionidae (Swallowtails and Swordtails). Although it’s called a ‘Swallowtail’ its hindwings lack the long tails that its relatives have.

Citrus Swallowtail is a large and conspicuous butterfly with a powerful flight and the restless nature typical of Swallowtails. Males (wingspan 100-120mm) patrol large territories looking for females and food sources. They are often found congregating on wet sand and mud around water sources.

Females (wingspan 110-130mm) are found on flowers and close to their host plants. The sexes are similar; females have an orange tint to the cream ring around a large eyespot at the upper corner of the hindwing (not visible here). 

Citrus Swallowtail is active from spring to autumn but it often peaks in midsummer. This is the reason for its other name, Christmas Butterfly. 

Distribution

Citrus Swallowtail occurs throughout South Africa and is common almost everywhere except remote arid areas with little human habitation. Because it uses the popular cultivated Citrus as a caterpillar host plant it is found in areas where its wild host plants are absent.

Outside South Africa it’s found all over sub-Saharan Africa, the moister parts of the Arabian peninsula, Madagascar and the Indian Ocean islands. 

 

Egg

Papilio demodocus demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Papilio demodocus demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Citrus Swallowtail eggs are typical of the family Papilionidae: tiny pearl-like spheres with flattened bases. They are white when laid, changing colour to pale yellow if fertile and then becoming green with faint brown mottling. They are 1.3mm high by 1.3mm diameter.

They are laid on the young shoots and leaves of the host plant, held in place by an adhesive secreted by the mother. The egg stage lasts about five days.

Young caterpillar

Papilio demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Papilio demodocus demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Young Citrus Swallowtail caterpillars are banded in black, white and yellow, and resemble bird droppings. When freshly hatched from the egg they are about 3mm long.

This camouflage gives them protection against predators like birds, which would not recognise them as a source of nutrition.

They have two rows of short spines along the body with forward-pointing ones behind the head. The tail is forked and also carries short spines.

The caterpillars take about 24-30 days to reach full size, undergoing four moults.

Mature caterpillar

Papilio demodocus demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Fully-grown Citrus Swallowtail caterpillars are green with pale grey underparts and irregular stripes of mottled grey. The effect is that of a partly eaten leaf with dry, dead patches. 

If disturbed, all stages of this caterpillar will rear up and extrude a forked orange organ called an osmeterium. This emits a strong scent of oils from the host plant. Together with the eyespots on the thorax of a mature larva gives the impression of a small snake, which can startle away small predators.  

Papilio demodocus demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Not all Citrus Swallowtail caterpillars feed on the Citrus family of plants. Some, like this one, use Apiaceae (Umbellifers) and their colouring affords them camouflage when feeding on these plants.

The final instar caterpillar takes about a week to ten days to reach a size of 35-45mm.

Pupa/Chrysalis

Papilio demodocus

Citrus Swallowtail

Papilio demodocus demodocus

Citrus Swallowtail pupae are attached to leaves or stems of the plant by a tail hook and a silken girdle spun over their ‘waist’. They hang from the girdle as shown here.

They are variable in colour from bark-like grey to leaf green depending on the surface they are formed on. Many have patches of green and grey.

The pupa is about 35-38mm long. The pupal stage lasts from two weeks to several months when the insect undergoes diapause as a pupa.

Host plants

Citrus Swallowtail caterpillars feed on plants in the Rutaceae (Rue and Citrus) family, which often grow in gardens. They also use Apiaceae (Umbellifers) like Fennel Foeniculum vulgare. Wild South African Apiaceae like Deverra or Peucedanum species are skin irritants and don’t make good garden subjects. There are many local Rutaceae that this butterfly uses in the wild. Examples are White-ironwood, Vepris lanceolata, Horsewood Clausena anisata, Small knobwood Zanthoxylum capense, and Cape-chestnut, Calodendrum capense.

Cape-chestnut

Calodendrum capense

Clausena anisata

Horsewood

Clausena anisata

Vepris lanceolata

White-ironwood

Vepris lanceolata

Zanthoxylum capense

Small knobwood

Zanthoxylum capense

How to attract them

Gardeners can promote the presence of this butterfly by simply growing a Lemon tree! Some people don’t like the way the caterpillars eat holes in the leaves, although they seldom arrive in sufficient numbers to do real damage. One way to divert their attention from the Lemon tree is by cultivating its preferred wild host plants. An advantage of doing this is that other Swallowtail species, if present, will lay eggs on them and breed in the garden.

Like most butterflies they welcome open sunny areas with lots of flowers to visit for nectar. Swallowtails are particularly fond of large pink or red flowers like Hibiscus or Cape-honeysuckle.

Meadow White

EASY GARDEN BUTTERFLIES

Meadow White Pontia helice

The Meadow White is one of the Pieridae (Whites, Tips and Yellows) subfamily Pierinae (Whites and Tips).

Meadow White is a small to medium-sized butterfly with a wingspan of 35-45mm. Its markings resemble the common migratory Pioneer Caper White Belenois aurota, but it flies more slowly and lower down. It settles often and is fond of flower nectar. It’s a pretty little insect with its underside marked in shades of green and yellow. The sexes are similar, with the female having black marks at the inner margin of the forewing and along the outer margin of the hindwings where the males are plain white.

Meadow White is often one of the first butterflies to emerge in spring. 

Distribution

Meadow White occurs throughout South Africa, particularly in grasslands. It typically does not frequent forests but it can be found almost everywhere apart from the hottest and most humid places. It’s also found in Namibia, Angola, Botswana, Zimbabwe and Mozambique. In East Africa it’s replaced by the Northern Meadow White, Pontia johnstonii.

Egg

Pontia helice

Meadow White

Pontia helice

Meadow White eggs are typical of the family Pieridae: bottle-shaped, tapered at the top, with vertical ribs connected by horizontal cross-ribs. They are pale yellow, changing colour to dull orange if fertile. They are 1mm high by 0.5mm diameter, with 12-13 vertical ribs and 30-35 cross-ribs.

They are laid on the flowers, ovaries, and pods of the host plant. The egg stage lasts about five to nine days.

Caterpillar

Pontia helice

Meadow White

Pontia helice

Fully-grown Meadow White caterpillars are yellow with green underparts and stripes of green and bluish-grey. 

They have rows of black dots and those at the front of each segment are outlined with orange. 

They grow from 1mm to about 20mm in two to four weeks depending on conditions; there are usually four moults.

 

Pupa/Chrysalis

Pontia helice

Meadow White

Pontia helice

Meadow White pupae are attached to leaves or stems of the plant by a tail hook and a silken girdle spun over their ‘waist’. This holds them tight to the surface; they don’t hang down from the tail like Nymphalidae or from the girdle as do Swallowtail pupae and some other Pieridae.

They are variable in colour, some being greyish-green with yellow stripes, or pale purple or grey-brown with yellow stripes.

The pupa is about 18mm long. The pupal stage lasts from four days to two weeks depending on climate conditions.

Host plants

Meadow White caterpillars feed on plants in the Brassicaceae family, which often grow in gardens. Indian Mustard Brassica juncea, Garden Alyssum Alyssum minutum, and Cultivated Rocket Eruca sativa are popular host plants. In the wild they occur on Virginia Peppercress Lepidium virginicum and its relatives. It also uses Hedge-mustard Sisymbrium officinale and Yellow Mignonette Reseda lutea.

Lepidium virginicum

Virginia Peppercress

Lepidium virginicum

Pontia helice

Meadow White female laying on Rocket

Eruca sativa

How to attract them

Gardeners can promote the presence of this butterfly by cultivating its preferred host plants.

Meadow White is the only member of the African Pieridae that it’s easy to get onto garden plants. To market gardeners who grow Indian Mustard and Rocket commercially it’s seen as a ‘pest’ but the caterpillars are solitary. They are far less destructive than the invasive Cabbage White Pieris brassicae to which this butterfly is related.

Like most butterflies they welcome open sunny areas with lots of flowers to visit for nectar.

Common Diadem

EASY GARDEN BUTTERFLIES

Common DiademHypolimnas misippus

The Common Diadem is one of the Nymphalidae (Brush-footed Butterflies), subfamily Nymphalinae (Admirals, Pansies etc.).

The male Common Diadem is an amazing sight. His upper side is jet black with a large white blotch in the middle of each wing. Each blotch is ringed with a shifting iridescent blue lustre which is only visible from certain angles. His underside is attractive as well. 

This butterfly is an example of what we call sexual dimorphism, in which females and males look totally different. The female Common Diadem looks like an African Plain Tiger, because she mimics that butterfly to gain protection against predators who have learned to avoid that bad-tasting butterfly. 

The Common Diadem’s wingspan is like that of an African Plain Tiger – 60-80 mm.

A Common Diadem has a more nervous and active flight than an African Plain Tiger, and when it lands it will constantly move its wings up and down. We call this ‘pumping’.

Distribution

The Common Diadem is found across the eastern side of South Africa, avoiding the arid Nama Karoo and Succulent Karoo areas. It’s found in the fynbos areas of the Western Cape and has spread across the world, being found across Asia and the Americas where it’s known as the Danaid Eggfly.

It’s widespread in Africa and it’s found on the southern end of the Arabian peninsula as well as Madagascar and the Indian Ocean islands.

Egg

Hypolimnas anthedon wahlbergi eggs

Diadem eggs

Hypolimnas anthedon

Diadems are closely related to Pansies and Commodores and have similar eggs. These are eggs of the similar Variable Diadem – green, barrel-shaped eggs tapered towards the top with 12-14 white vertical ribs that don’t reach the apex, with faint cross-ribbing. They are laid on young shoots of the host plant, singly or in small groups. They are about 0.7mm diameter by 0.6mm high. The egg stage lasts five to ten days, taking longer in cool conditions.

Caterpillar

Hypolimnas misippus

Common Diadem larva

Hypolimnas misippus

Fully-grown Common Diadem caterpillars are greyish black in colour with salmon-pink bands along the side. The prolegs and head are salmon-pink to orange. The head has two short spiny horns. The body has seven rows of short, branched, black spines, one per segment. Although spiny they don’t sting or make you itch. They grow from 2mm to 48-50mm long over a month. There are normally four moults but when growth is slow there can be five. 

Pupa/Chrysalis

Hypolimnas misippus

Common Diadem pupa

Hypolimnas misippus

The Common Diadem pupa is variable in colour, from sandy to black through various shades of brown. It closely resembles that of a Pansy or Commodore, having the rounded shape with spiny back typical of Nymphalinae pupae. It’s usually formed concealed on the host plant or in leaf debris where it is well camouflaged. Like all Nymphalidae pupae it is attached to its substrate by its tail. The pupa is 22-25mm long and the adult usually emerges after 4-6 weeks.

Host plants

Like many widespread butterflies, Common Diadem has a wide host plant range. In South Africa its main host plant is African Coromandel Asystasia intrusa, but it also uses Justicias like Veld Justicia Justicia protracta, Moss-rose Purslane Portulaca grandiflora, and Ruellias like Veld Violet Ruellia cordata.

Asystasia intrusa

African Coromandel

Asystasia intrusa

Veld Justicia

Justicia protracta

Portulaca grandiflora

Moss-rose Purslane

Portulaca grandiflora

Veld Violet

Ruellia cordata

How to attract them

Gardeners can promote the presence of this butterfly by cultivating its preferred host plants. Some of these are popular garden plants, so it’s not a surprise that Common Diadems often turn up in gardens.

Like its close relatives the Pansies and Commodores it’s a sun-loving insect that’s often found on flowers. Males like to patrol hilltops and other prominent landforms.

Some other aspects

Male underside

Hypolimnas misippus male

Common Diadem

Hypolimnas misippus

As well as their brightly coloured upper sides, male Common Diadems have conspicuous underside markings.

Female forms

Hypolimnas misippus female form inaria

Common Diadem female

Hypolimnas misippus form inaria

The Common Diadem female shown on the header is the ‘nominate’ form. She resembles the local subspecies orientis of the African Plain Tiger. Form inaria, shown here, is a mimic of the rarer Tawny Plain Tiger, Danaus chrysippus dorippus. Unlike that subspecies this form of Common Diadem is not rare.

Female forms

Hypolimnas misippus female form alcippoides

Common Diadem female

Hypolimnas misippus form alcippoides

Common Diadem females mimic several subspecies of the Plain Tiger. This one has the white hindwings reminiscent of  White-winged Plain Tiger Danaus chrysippus alcippus. The amount of white is variable, and forms exist that mimic Plain Tiger subspecies we never see in South Africa.

African Grass Blue

EASY GARDEN BUTTERFLIES

African Grass BlueZizeeria knysna knysna

African Grass Blues are tiny (wingspan 18-24 mm), low-flying butterflies in the Lycaenidae (Gossamer-winged Butterflies), subfamily Polyommatinae (Blues, Bronzes, Hairstreaks etc.). Blues are tiny to small butterflies, many of which have brilliant blue uppersides (although some are dull grey or brown). 

The sexes differ slightly on their upper sides. Male African Grass Blues are shiny violet-blue above with a well-defined grey wing margin. They differ from their females which are charcoal grey with the bases of the wings being sky blue with ill-defined margins. The underside of both sexes has patterns of grey-brown spots and arrow-marks on a whitish grey ground.  

African Grass Blues fly very low and spend most of their time in the grass – hence their common name. They feed on low-growing flowers and like to sit on damp earth and mud, sucking up dissolved minerals. The sexes fly together and engage in courtship when they encounter one another.

 

Distribution

African Grass Blues are found all over South Africa except for the central Nama Karoo and the highest altitude grasslands. They are common all over Africa, Madagascar, and the Indian Ocean islands. The Asian Grass Blue subspecies Zizeeria knysna karsandra is found in North Africa, southern Europe, the Middle East and across tropical Asia to Australia.

Egg

Zizeeria knysna knysna eggs

African Grass Blue

Zizeeria knysna knysna

Female African Grass Blues lay tiny, pale blue-green eggs singly on buds or flower stalks of the host plant. They turn white as they mature. They are flattened disks 0.5mm in diameter by 0.25mm high.  They have double rows of whorled white ribs that are joined by horizontal ribs on the side to create a pattern of triangles with a tiny mole where they meet. There is a prominent dark mark at the centre of the top. The egg stage lasts about five days.

Caterpillar

Zizeeria knysna knysna

African Grass Blue

Zizeeria knysna knysna

African Grass Blue caterpillars are tiny. They are slug-shaped, as are most caterpillars of the Lycaenidae. Fully-grown caterpillars vary in colour from pale green to dull mid-green, with pale whitish diagonal side markings and a pale stripe along the back. The skin is covered in tiny bristles and appears velvety. Young larvae eat slots into the leaves of the plant and conceal themselves in those. Older larvae wrap themselves around a leaf and consume it – they are very hard to see when they do this. They grow from 0.8mm to 10-11mm long in three moults over two to three weeks. They have a ‘honey gland’ on their rear segments like many other Lycaenidae, which attracts the attentions of ants. 

Pupa/Chrysalis

Zizeeria knysna knysna

African Grass Blue

Zizeeria knysna knysna

African Grass Blue pupae are covered with tiny bristles. They vary in colour from pale yellow-green to darker green with a varying amount of grey speckling. The caterpillars pupate in debris below their host plant. They are attached by tiny hooks on their tail to a silken pad spun by the larva and by a silken girdle around their ‘waist’. They are about 7-8mm long, and of a typical rounded Lycaenid shape. The adult normally emerges in about one to three weeks although it can be longer in cold or dry conditions.

Host plants

African Grass Blue caterpillars feed on a variety of plants from various families. One of the best-known is the Creeping woodsorrel, Oxalis corniculata – a common lawn weed found all over Africa. Few gardens will not have these little Blues flying around their lawn. Not all gardeners are fond of this plant and even fewer like one of its other host plants, Devil-thorn Tribulus terrestris!  It also uses plants in the Pea family, Fabaceae, like Lucerne, Medicago sativa

Tribulus terrestris

Devil-thorn

Tribulus terrestris var grandiflora

Oxalis corniculata

Creeping woodsorrel

Oxalis corniculata

Medicago sativa

Lucerne

Medicago sativa © Bart Wursten

How to attract them

It’s very difficult to prevent this little species from appearing in a garden because a main host plant is a widespread lawn weed! This is one of the best arguments for avoiding weed killers and insecticides, accepting biodiversity into the lawn environment. Think of Creeping woodsorrel as an attractive ground cover with benefits!

Zebra Blues

EASY GARDEN BUTTERFLIES

Zebra BluesLeptotes species

Zebra Blues are small (wingspan 20-30 mm) low-flying butterflies in the Lycaenidae (Gossamer-winged Butterflies), subfamily Polyommatinae (Blues, Bronzes, Hairstreaks etc.). Blues are tiny to small butterflies, many of which have brilliant blue uppersides (although some are dull grey or brown). 

The image with upper sides shows a pair in courtship mode prior to mating. Male Zebra Blues (left) are shiny blue above and differ from their females (right) which have a checkerboard pattern of grey on a white and blue ground. The undersides have irregular grey stripes on a white ground, resulting in their common name. Like many Lycaenidae they have short hindwing tails positioned next to prominent eyespots (particularly on the underside) that create a predator-confusing ‘false head’ effect.

There are four species of Leptotes Zebra Blue. Common Zebra Blue Leptotes pirithous, Short-toothed Zebra Blue L. brevidentatus, Jeannel’s Zebra Blue L. jeanneli, and Babault’s Zebra Blue L. babaulti, which have identical wing markings to one another. The only way to tell them apart is to dissect them and that means killing the butterfly. Who wants to do that? Most of the ones we see are the Common Zebra Blue; it really is just that; common!

Males choose a perch on top of a bush or on a prominent rock and fly off to chase other butterflies. They settle often and readily open their wings to reveal the upper side. They also like to sit on damp earth and mud, sucking up dissolved minerals. They may also suck nutrients from old bones or carnivore dung. Females are found close to the host plants or on flowers.

Distribution

Zebra Blues are found all over South Africa except for the central Nama Karoo and the highest altitude grasslands. They are common all over Africa, the southern Arabian peninsula, Madagascar, and the Indian Ocean islands. The Common Zebra Blue is found in Europe and even reaches the south of England, where it rejoices in the name ‘Lang’s Short-tailed Blue’! 

Egg

Leptotes pirithous

Common Zebra Blue

Leptotes pirithous

Female Zebra Blues lay tiny, pale blue eggs singly on buds or flower stalks of the host plant. They turn white as they mature. They are flattened disks 0.5mm in diameter by 0.3mm high.  They have double rows of whorled white ribs that are joined by horizontal ribs on the side to create a pattern of triangles with a tiny mole where they meet. There is a prominent dark mark at the centre of the top. The egg stage lasts about six to seven days.

Caterpillar

Leptotes pirithous

Common Zebra Blue

Leptotes pirithous

Zebra Blue caterpillars are small, and slug-shaped, as are most caterpillars of the Lycaenidae. Fully-grown caterpillars are extremely variable in colour ranging from green to grey or pink with markings picked out in dark green, pink, white or brown. The skin is covered in tiny bristles and appears velvety. The bristles also vary in colour. The larvae eat the ovaries and seed pods of the flowers, or the growing shoots of the plant. They grow from 1mm to 13-15mm long in three or four moults over a month to six weeks. They have a ‘honey gland’ on their rear segments like many other Lycaenidae, which attracts the attentions of ants. 

Pupa/Chrysalis

Leptotes pirithous

Common Zebra Blue

Leptotes pirithous

Zebra Blue pupae are smooth-skinned with tiny bristles. They vary in colour from watery green to pale brown with a varying amount of black or brown speckling. The caterpillars pupate on their host plant among dead flowers or leaves, or on stems. They are attached by tiny hooks on their tail to a silken pad spun by the larva and by a silken girdle around their ‘waist’. They are about 7-9mm long, and of a typical rounded Lycaenid shape. The adult normally emerges in about three to four weeks although it can be as quickly as two weeks.

Host plant

Zebra Blue caterpillars feed on plants like Leadwort Plumbago auriculata, a popular garden plant. Few gardens that have this will not have these little Blues flying around it. All the Leptotes use other plants in the Pea family, Fabaceae. Indigoes Indigofera sp. are popular, as are Rattle-pods Crotolaria sp. and Cow-peas Vigna sp.

Plumbago auriculata flowers

Leadwort

Plumbago auriculata

Leadwort with Cape Honeysuckle

Plumbago auriculata and Tecoma capensis

Indigofera velutina

Indigo

Indigofera velutina

Black-eyed Pea

Vigna unguiculata

How to attract them

Gardeners can encourage the presence of this butterfly by planting any of its host plants, which is quite easy to do as there are so many of them and they are good garden subjects in themselves. Not only do they provide food for Zebra Blue caterpillars, but they are also among the finest nectar plants for all butterflies, especially Leadwort.

Leadwort makes a good hedge, particularly when planted with Cape Honeysuckle Tecoma capensis.

Black-eyes

EASY GARDEN BUTTERFLIES

Lilac-based, Plain, and Cape Black-eyesLeptomyrina gorgias, henningi, and lara

There are four species of Black-eyes in South Africa, all in the Lycaenidae (Gossamer-winged Butterflies), subfamily Polyommatinae (Blues, Bronzes, Hairstreaks etc.). Three of these are very similar to one another, are found in differing parts of the country, and all occur in gardens. The fourth species, Tailed Black-eye Leptomyrina hirundo, is smaller, has a dark blue upper side, and has long hindwing tails. It is seldom seen in gardens.

These are small (wingspan 20-30mm) low-flying butterflies found across South Africa’s provinces. Cape Black-eye occurs in the Fynbos and Karoo biomes, Brown Black-eye in the central savanna and grasslands, and Lilac-based Black-eye on the mountains and on the seaward side of the Great Escarpment. 

They have in common warm brown upper sides and a prominent white-ringed black eyespot at the lower corners of the forewings. Cape Black-eye has a coppery shade similar to the Plain Black-eye, and the Lilac-based Black-eye, as its name suggests, has greyish-mauve bases to the upper sides of the wings. The undersides of all of them are whitish-grey with dark speckles.

Males choose a perch on the side of a bush or on a prominent rock and fly off to chase other butterflies. They fly fast but settle often and readily open their wings to reveal the upper side. The females exhibit similar coloration and patterning as the males; however, they possess broader wings, exhibit slower flight, and are frequently observed on flowers. 

Distribution

Black-eyes can be found nearly all over South Africa. They overlap, and the Plain and Lilac-based intermingle and are thought by some to be merely different colour forms of the same butterfly species. Cape Black-eye is only found in South Africa and Namibia but the other two species are found further north in Africa as subspecies.

Egg

Leptomyrina gorgias

Lilac-based Black-eye

Leptomyrina gorgias

Female Black-eyes lay tiny, white or cream eggs singly on the succulent leaves of the host plant. They are 0.75-0.9mm diameter by 0.4-0.5mm high. They are domed with a pattern of white polygons, making them resemble tiny golf balls. They have a prominent dark mark at the centre of the top. The egg stage lasts about five to eight days.

Caterpillar

Leptomyrina gorgias

Lilac-based Black-eye

Leptomyrina gorgias

Black-eye caterpillars are small, and slug-shaped, as are most caterpillars of the Lycaenidae. Fully-grown caterpillars are translucent green with a faint pink line running down the back and wavy pale diagonal lines along the sides. The row of black dots along the side are its spiracles through which it breathes. The skin is covered in tiny bristles and appears velvety. They are leaf-miners, spending their entire lives as larvae inside the host plants’ succulent leaves. They create cavities that fill up with their frass pellets (dung).  They grow from 1mm to 22-24mm long in three or four moults over a month to six weeks. They have a ‘honey gland’ on their rear segments like many other Lycaenidae, which attracts the attentions of ants. The ants have been seen removing frass from the leaf cavities.

Pupa/Chrysalis

Leptomyrina gorgias

Pea Blue

Lampides boeticus

Black-eye pupae are smooth-skinned and vary in colour from watery green to pale brown with a varying amount of black or brown speckling and a darker reddish line running along the top of the abdomen. The caterpillars pupate near the host plant but will usually crawl out of their home leaf and move into the debris at the base of the plant. They are attached by tiny hooks on their tail to a silken pad spun by the larva on a stem, twig, dead leaf, or piece of debris and by a silken girdle around their ‘waist’. They are about 10-13mm long, and of a typical rounded Lycaenid shape. The adult normally emerges in about three to four weeks.

Host plant

Black-eye caterpillars feed on many species of succulent plants in the Crassula family. These include Pig’s-ears (Cotyledon orbiculata), Pygmyweeds and Stonecrops (Crassula and Kalanchoë), many of which are popular garden plants.

Crassula alba

Grassland Red Crassula with friend

Crassula alba and Papilio dardanus cenea male

Pig's-ears

Cotyledon orbiculata

Kalanchoe decumbens

Nentakalanchoe

Kalanchoë decumbens

Yellow Crassula

Crassula vaginata

How to attract them

Gardeners can encourage the presence of this butterfly by planting any of its host plants, which is quite easy to do as there are so many of them and they are good garden subjects in themselves. Not only do they provide food for Black-eye caterpillars, but they are also among the finest nectar plants for all butterflies.

These plants do well in rockeries, formal herbaceous borders, and grassland gardens. Some other butterflies like Ciliate Blues (Hairtails) also use them as host plants.

Pea Blue

EASY GARDEN BUTTERFLIES

Pea BlueLampides boeticus

The Pea Blue (which is also known as ‘Long-tailed Blue’) is one of the Lycaenidae (Gossamer-winged Butterflies), subfamily Polyommatinae (Blues, Bronzes, Hairstreaks etc.). Blues are tiny to small butterflies, many of which have brilliant blue uppersides (although some are dull grey or brown). 

The male Pea Blue’s wingspan is 24-32 mm, the female’s, 24-34mm.

Males choose a perch on a tall herb or on a prominent rock and fly off to chase other butterflies. They fly extremely fast but settle often and readily open their wings to reveal the upper side. Males are bright blue above with patches of darker blue which are visible in flight, making them unmistakable to the trained eye. Females are a duller shade of blue with wide grey-brown borders and white marks around the edges of the hindwings. They are more often found on flowers and around their host plants.

The underside of both sexes’ wings is warm grey crossed by fine white bands and a thicker band along the outer edge of the hindwing. Each hindwing carries a short tail close to two black spots on both wing surfaces, that give the impression of a ‘false head’ as do many other ‘Blues’. 

Distribution

Pea Blues are extremely widespread, being found nearly all over South Africa. They are found across the ‘Old World’ (Africa and Eurasia), Australia and New Zealand. They have also reached the Hawaiian Islands. They may have followed man and his crops around the globe. Cultivated peas – Pisum sativum – are a listed host plant.

Egg

Lampides boeticus

Pea Blue

Lampides boeticus

The female Pea Blue lays her tiny, pale blue-green eggs singly or in small groups on buds, leaves, or seed pods of the host plant. They are about 0.5mm diameter by 0.3mm high. They are flattened discs ornamented with a pattern of white moles, connected by tiny ribs in a pattern of triangles and a prominent dark mark at the centre of the top. The egg stage lasts about five to eight days.

Caterpillar

Lampides boeticus

Pea Blue

Lampides boeticus

Pea Blue caterpillars are small, and slug-shaped, as are most caterpillars of the Lycaenidae. This species’ fully-grown caterpillars vary in colour depending on the colour of the plant they are eating. Common colours are pea green, olive green, dirty white or pale brown. The markings vary from darker green to pink or brown. There is a dark line along the back, a pale line along the sides, and oblique pale lines in between. The skin is covered in tiny bristles. They feed on flower buds, flowers, and seeds of the host plants. They grow from 1mm to 20mm long in four moults over a month to six weeks. They have a ‘honey gland’ on their rear segments like many other Lycaenidae, which attracts the attentions of ants. Image © John Joannou♱

Pupa/Chrysalis

Lampides boeticus

Pea Blue

Lampides boeticus

Pea Blue pupae are smooth-skinned and vary in colour from cream to brown with a varying amount of black or brown speckling and a dark line runs along the back. The caterpillars pupate near the host plant but generally crawl out of a seed pod or away from a leaf and move into the debris at the base of the plant. They are attached by an adhesive smeared by the larva on a stem, twig, dead leaf, or piece of debris with a silken girdle around their ‘waist’. They are about 10-13mm long, and of a similar shape to those of the Geranium Bronze, but lack hairs. The adult normally emerges in about two to three weeks. Image © John Joannou♱

Host plant

Pea Blue caterpillars feed on many species of leguminous plant, not only cultivated peas. These include Rattle-pods (Crotolaria), Indigos (Indigofera), Lucerne (Medicago sativa), Sweet-peas (Tephrosia), Milkworts (Polygala) and Cow-peas (Vigna), many of which are popular garden plants.

Crotolaria macrocarpa

Rattle-pod

Crotolaria macrocarpa

Red bush indigo

Indigofera hilaris

Tephrosia grandiflora

Pink Bush-pea

Tephrosia grandiflora

Myrtle-leaf Milkwort

Polygala myrtifolia

How to attract them

Gardeners can encourage the presence of this butterfly by planting any of its host plants, which is quite easy to do as there are so many of them and they are good garden subjects in themselves.

It’s important to also have nectar plants in your garden, as well as open sunny areas with structure like prominent rocks and trees or shrubs that the males can use as territorial markers.

Common Geranium Bronze

EASY GARDEN BUTTERFLIES

Common Geranium BronzeCacyreus marshalli

The Common Geranium Bronze  is one of the Lycaenidae (Gossamer-winged Butterflies), subfamily Polyommatinae (Blues, Bronzes etc.). Blues are tiny to small butterflies, many of which have brilliant blue uppersides (although some are dull grey or brown). Common Geranium Bronze is one of the brown ones.

The male Common Geranium Bronze’s wingspan is 15-23 mm, the female’s, 24-27mm. The sexes are alike. There are two less common similar species. One is the Water Geranium Bronze Cacyreus fracta which has some violet-blue on the upperside. It lives in wetlands in cooler areas like the Western Cape and the Drakensberg. The other is Dickson’s Geranium Bronze Cacyreus dicksoni whose upperside is more of a coppery hue – and is found in the Karoo.

They fly quite low, fluttering among the vegetation and are often seen along herbaceous borders. They keep close to the host plants.

Both sexes are fond of flower nectar. Males also like to sit on damp earth and mud, sucking up dissolved minerals.

Distribution

The Common Geranium Bronze is naturally found in most areas of South Africa except the most arid parts of the Desert and Karoo. However, it’s become a cosmopolitan butterfly. South African Geraniaceae have been exported extensively to Europe. At some point some caterpillars, eggs or pupae went along for the ride. Now it’s found as far afield as England and has caused a lot of trouble in the pot plant trade in places like Spain.

Fortunately, its natural predators keep its numbers in check here at home. We can enjoy it as a charming little garden butterfly.

Egg

Cacyreus marshalli

Common Geranium Bronze

Cacyreus marshalli

The female Common Geranium Bronze lays her tiny, pale blue-green eggs singly on buds and leaves of the host plant. They are about 0.3mm diameter by 0.5mm high. They are flattened discs, with many tiny moles connected by cross-ribs, creating indentations. The eggs turn white as they mature. The egg stage lasts about six to eight days.

Caterpillar

Cacyreus marshalli

Common Geranium Bronze

Cacyreus marshalli

Common Geranium Bronze caterpillars are small and slug-shaped, as are most caterpillars of the Lycaenidae. This species has bristly hairs on its back. They feed on flower buds, seeds, and young shoots of the host plants, later on boring into the stems. They often hide under leaves lying flat on the ground. They grow from 1mm to 13mm long in three moults over a month. They vary greatly in colour from green to yellow, with a varying extent of red or pink markings. They do not have a ‘honey gland’ like some other members of the family do.

Pupa/Chrysalis

Cacyreus marshalli

Common Geranium Bronze

Cacyreus marshalli

Common Geranium Bronze pupae are elongated and very hairy. They are attached to a silken pad spun by the larva on a dead leaf or piece of debris by tiny hooks on the tail in a manner similar to ‘Velcro’, with a silken girdle around their ‘waist’. They vary in colour from pale green to yellow or brown, with darker brown mottling and pale pink bands. They are about 8-9mm long. The adult normally emerges in about two to three weeks.

Host plant

Common Geranium Bronze caterpillars feed on many species of Pelargonium and Geranium. These plants are widespread in the wild in South Africa and are very popular with gardeners. Pelargoniums are particularly showy, and some gardeners view this butterfly as a pest because its larvae sometimes bore into the plants’ stems. This can stunt their growth, but sometimes you need to make a little sacrifice to have butterflies in your garden!

Geranium pulchrum

Geranium pulchrum

Geranium pulchrum

Cranesbill

Geranium caffrum

Hooded-leaf Pelargonium

Hooded-leaf Pelargonium

Pelargonium cucullatum

Scented leaf Pelargonium

Pelargonium graveolens

How to attract them

Gardeners can promote the presence of this butterfly by planting any of its host plants, which is quite easy to do as there are so many of them!

It’s important to also have nectar plants in your garden, as well as open sunny areas where they can fly around and mate.

Garden Acraea

EASY GARDEN BUTTERFLIES

Garden AcraeaAcraea horta

The Garden Acraea is one of the Nymphalidae (Brush-footed Butterflies), subfamily Heliconiinae (Acraeas and Longwings).

The males are red with black spots and transparent forewing tips. Females are yellow-brown or red, and if red it’s a duller, brick-red shade than the males. The wingspan is 45-55 mm. 

They are slow flying, gregarious little butterflies that glide through the air with wings open, only occasionally flapping them. They seldom move far away from their host plant. 

Distribution

The Garden Acraea is a widespread butterfly that is found in the wild in the cooler forested areas on the southern and eastern Escarpments. It has a wider range than that because its main host plant, Wild Peach Kiggelaria africana, is a popular garden subject all over the country even on the Highveld and in warmer areas like KwaZulu-Natal and the Lowveld. 

It isn’t found outside South Africa apart from as an occasional migrant in Zimbabwe.

Eggs

Acraea horta

Garden Acraea eggs

Acraea horta

The female Garden Acraea lays her pale yellow eggs in neat clusters on leaves of the host plant. They are about 0.75mm diameter by 0.75mm high. They are dome-shaped, tapering at the top, and have about 24 longitudinal ribs connected by about 25 cross-ribs, creating indentations. The eggs turn reddish as they mature before turning black just prior to hatching. The egg stage lasts about ten days.

Young Caterpillars

Acraea horta

Garden Acraea larvae

Acraea horta

When Garden Acraea caterpillars first hatch from the eggs they are gregarious. They move across the surface of the leaves, first ‘skeletonizing’ them then eating them down to the veins. They are yellow-buff with rows of short, branched, black spines. Although spiny they don’t sting or make you itch. They grow from 2mm to 30-40mm over one to two months depending on weather conditions. There are normally four moults but when growth is slow there can be five. 

Fully-grown Larva

Acraea horta

Garden Acraea larva

Acraea horta

Fully-grown Dark Blue Pansy caterpillars are solitary and spread out on the host tree. Their colour is brown and black, with streaks of yellow and pink on the side and pale green underneath. There are six rows of branched black spines with a bluish base, one per segment in each row. 

When fully fed the caterpillars leave the host tree foliage and wander off to nearby walls, rocks, and tree trunks where they prepare to pupate.

Pupa/Chrysalis

Garden Acraea pupae

Acraea horta

Final instar Garden Acraea caterpillars often enter diapause in winter and only pupate when the conditions favour it. This shows a group of them on a garden wall, three of which have already pupated. Like all Nymphalidae pupae it is attached to its substrate by its tail. They are 18-20 mm long, dull yellow with black and orange markings. The adult usually emerges after 2-3 weeks.

Host plant

The normal host plant of the Garden Acraea is the Wild Peach, Kiggelaria africana (Achariaceae) although there are reports of them using Passifloraceae. This is a popular garden subject all over the country even on the Highveld and in warmer areas like KwaZulu-Natal and the Lowveld.  

The females lay their mats of eggs on the leaves and the little caterpillars will soon be everywhere. They may even defoliate your tree! If this happens don’t worry. The tree benefits from the pruning. Remember that plants are meant to be eaten by something. This plant’s real purpose is to be eaten by caterpillars that become hundreds of little red butterflies to populate your garden!

Kiggelaria africana

Wild Peach tree

Kiggelaria africana

Wild Peach foliage

Kiggelaria africana

Kiggelaria africana

Wild Peach flowers

Kiggelaria africana

Female Garden Acraea

on Kiggelaria africana

How to attract them

Gardeners can promote the presence of this butterfly by planting Wild Peach trees. Usually all you must do is plant a sapling and eventually the butterflies will arrive.

It’s important to also have nectar plants in your garden, so the adults have something to subsist on whilst mating and laying eggs.

Dark Blue Pansy

EASY GARDEN BUTTERFLIES

Dark Blue PansyJunonia oenone oenone

The Dark Blue Pansy is one of the Nymphalidae (Brush-footed Butterflies), subfamily Nymphalinae (Admirals, Pansies etc.).

Pansies are small to medium-sized butterflies with a wingspan of between 40 and 60mm. They get their common name from the way some of them resemble pansy flowers. Dark Blue Pansy is one of these; its blue and white markings on a jet-black ground have a ‘face-like’ pattern if you use your imagination a bit! 

They are sun loving, prolific, confiding butterflies.  They fly low and often settle on flowers or the ground. The males are aggressively territorial and will choose a high point and chase away all other butterflies from it – even big ones like Charaxes. This is a female; males are similar but don’t have as many red eyespots. The underside is coloured in shades of brown and grey, camouflaging it when resting on the ground or amongst dead leaves.

Distribution

The Dark Blue Pansy is found across the eastern side of South Africa, avoiding the arid Karoo areas, Deserts, and the Fynbos. However, it’s followed its host plants, which are popular with gardeners, as far as Knysna in the Western Cape. It’s commoner in the savanna of the Lowveld and coastal areas to the east but is also found in Highveld grassland. It can occur anywhere its host plants grow. It’s widespread in Africa but does not reach Asia; it’s found on the southern end of the Arabian peninsula. Another subspecies is found on Madagascar and the Indian Ocean islands.

Egg

Junonia oenone oenone

Dark Blue Pansy eggs

Junonia oenone oenone

The female Dark Blue Pansy hides her tiny, dull watery green, barrel-shaped eggs inside young shoots of the host plant. Laid singly or in small groups, they are about 0.7mm diameter by 0.7mm high. They taper slightly at the top, and have about 15 longitudinal ribs with fine cross-ribs. The egg stage lasts four to ten days, taking longer in cold conditions.

Caterpillar

Junonia oenone oenone

Dark Blue Pansy larva

Junonia oenone oenone

Fully-grown Dark Blue Pansy caterpillars are grey-black in colour with a whitish double stripe along the back, short cream lines along the side and a yellow line above the underside, which is red-brown. They have rows of short, branched, black spines. Although spiny they don’t sting or make you itch. They grow from 1.5mm to 40-45mm over one to two months depending on weather conditions. There are normally four moults but when growth is slow there can be up to six. 

Pupa/Chrysalis

Dark Blue Pansy pupa

Junonia oenone oenone

The Dark Blue Pansy pupa is variable in colour, from sandy to black through various shades of brown. It closely resembles that of the African Yellow Pansy, having the rounded shape typical of Pansy pupae. It’s usually formed concealed on the host plant or in leaf debris where it is well camouflaged. Like all Nymphalidae pupae it is attached to its substrate by its tail. The pupa is 15-20mm long and the adult usually emerges after 2-3 weeks.

Host plants

Dark Blue Pansy caterpillars feed on many different plants but one of the best is African Coromandel Asystasia intrusa. It also uses Bush Violet Barleria obtusa, other Barleria species, Ribbon Bush Hypoestes aristata, Justicia species, Butterfly Heaven Dyschoriste depressa and other Dyschoriste species. Most of the host plants are in the family Acanthaceae. 

Asystasia intrusa

African Coromandel

Asystasia intrusa

Meyer's Bushviolet

Barleria meyeriana

Hypoestes aristata

Ribbon Flower

Hypoestes aristata

Butterfly Heaven

Dyschoriste depressa

How to attract them

Gardeners can promote the presence of this butterfly by cultivating its preferred host plants and creating a sunny, sheltered environment with an abundance of nectar-rich flowers.

Provided you have plenty of nectar plants in your garden, you’re very likely to see them. They love to sit drinking nectar from garden flowers and basking in the sun slowly opening and closing their wings. 

Other aspects

Junonia oenone oenone

Dark Blue Pansy ♂

Junonia oenone oenone

Junonia oenone oenone ♂ underside

Dark Blue Pansy ♂

Junonia oenone oenone underside

Butterflies can vary widely between the sexes, like the Common Diadem or Zebra Blues, or appear very similar with slight differences like the Citrus Swallowtail. Pansies’ sexes are similar with slight differences. This male Dark Blue Pansy can be told from a female by his deeper black wings with reduced or absent red eyespots compared to the female. The underside of both sexes is cryptically marked so they become less visible when resting wings-closed on the ground.