IUCN RED LIST
Established in 1964, The IUCN Red List is a critical indicator of the health of the world’s biodiversity. Species are classified by the IUCN Red List into nine groups, through criteria such as rate of decline, population size and area of geographic distribution as:
- Extinct (EX) – This species is no longer extant
- Extinct in the wild (EW) – Survives only in captivity, or through cultivation often outside native range
- Critically endangered (CR) – In an extremely critical state
- Endangered (EN) – Very high risk of extinction in the wild
- Vulnerable (VU) – At high risk of unnatural (human-caused) extinction
- Near Threatened (NT) – Close to being endangered in the near future
- Least Concern (LC) – Widespread and abundant in the wild
- Data Deficient (DD) – Inadequate information to assess extinction risk
- Not Evaluated (NE) – Has not yet been assessed
The species exhibits marked sexual dimorphism. Males are predominantly velvety black with striking iridescent blue-violet patches bordered by white spots on the forewings. Females are brownish-black with white bands and spots, often resembling unpalatable butterfly species through mimicry.
The Great Eggfly is a strong, fast-flying butterfly known for its territorial nature. Males frequently patrol open areas and defend territories against rivals. The species is highly active during sunny weather and is often seen basking on leaves, flowers, and bare ground.
The Great Eggfly is primarily a resident species and does not undertake regular long-distance migrations. However, local dispersal and seasonal movements may occur in response to climatic conditions and food availability.
Females lay eggs singly on the leaves of host plants, mainly species belonging to the families Acanthaceae and Portulacaceae. Breeding occurs throughout the year in tropical regions, with increased activity during the monsoon and post-monsoon seasons.
The species exhibits remarkable sexual dimorphism and mimicry. Females mimic toxic or unpalatable butterflies, reducing predation risk. Males possess iridescent wing scales that play a role in courtship and territorial displays. Strong flight capability enables effective dispersal and predator avoidance.
Adults feed on nectar from a wide variety of flowering plants. They are also attracted to overripe fruits, tree sap, decaying organic matter, and moist soil. Caterpillars feed on host plants such as Asystasia, Portulaca, and related species.
The Great Eggfly is found in a wide range of habitats including forests, forest edges, scrublands, grasslands, agricultural landscapes, gardens, parks, coastal areas, and urban green spaces.
