Hypolimnas misippus

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Hypolimnas misippus is a butterfly known as the Danaid eggfly. It’s famous for its many forms and for mimicking other butterflies to avoid predators.

Distribution
This butterfly is found across Africa, Asia, and Australia. It also occurs in the Americas—particularly the West Indies—with occasional stray individuals reaching Central and North America. It is widely present on Indian Ocean islands, including the Seychelles (Mahé, Praslin, Aldabra, Cousine) and other islands there.

Description
- Male: The male is monomorphic, with uppersides that are dark velvety brownish black. The forewings have a broad white oval spot between veins 3 and 7 and a smaller apical spot, both bordered by iridescent blue that shows at the right angle. The hindwings have a larger white spot. The underside features chestnut and golden-brown tones with white spots and dark borders. The body is dark brown.
- Female: Females are highly variable (forms include misippus, alcippoides, dorippoides, immima, inaria). Some females resemble the toxic Danaus species (like Danaus chrysippus or Danaus plexippus). When the model species are scarce, intermediate forms can appear.

Life cycle and host plants
- Larva (caterpillar): Black with a dark dorsal line, pale brown transverse spots, brick-red head, and many branched spines along its body. It has defensive spines and a dark olive-brown ventral side.
- Food plants: Larvae mainly feed on Portulaca oleracea (purslane) and a variety of other plants such as Amaranthus caudatus, Hibiscus, Justicia, Ipomoea, Portulaca species, Barleria, and several related genera.
- Pupa: Pendulous, short and thick, camouflaged with light brown, variegated markings to blend with foliage.
- Adults: The adults fly mainly in the late summer to spring, with peak numbers often following rainfall when host plants grow best. This timing helps ensure plenty of food for larvae.

Mimicry
Females often mimic the colors and patterns of the toxic plain tiger (Danaus chrysippus) or related Danaus species. This mimicry helps protect them from predators. Sometimes females move alongside plain tiger butterflies, which aids in the warning signal to predators.

Conservation status
Hypolimnas misippus is listed as Least Concern by the IUCN, meaning it is widespread and not currently at high risk of extinction.

Taxonomy
Binomial name: Hypolimnas misippus. Common synonyms include Papilio misippus and Diadema misippus. It belongs to the Nymphalidae family, within the genus Hypolimnas.