Early entomologists considered Catopsilia pomona and Catopsilia crocale to be separate species, but it is now scientifically proven that both are forms of the. Catopsilia pomona, commonly called the Common Emigrant, is a medium-sized Pierid butterfly found in Asia and parts of Australia. The species gets its. Catopsilia pomona (Specimen: courtesy of the Butterfly House, Coffs Harbour). The Caterpillar is green with a dark dorsal stripe, and has a pale green head with .

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Catopsilia pomona is distributed from Sikkim to Catopdilia, east to the Philippines, and south through the islands of the South Pacific to Australia, where it is very widespread. Early entomologists considered Catopsilia pomona and Catopsilia crocale pomna be separate species, but it is now scientifically proven that both are forms of the same subspecies – C.

There are in fact at least 6 different colour forms or “morphs”, 3 of which are illustrated here. The various ‘pomona’ forms all have a pair of silvery spots on the underside, in the cell of the hind wing, and often have dark patches, these being most pronounced in f.

India Biodiversity Portal

On the upper pomoan the wings are whitish with a deep yellow flush in the basal area f. The ‘ crocale ‘ forms have wings that are unmarked on the underside. The uppersides of both forms have thin black apical borders in males, while females have a broad dark apical area within which are several pale squarish spots.


The ‘ crocale ‘ and ‘catilla ‘ forms are both widespread. The various colour forms are seasonal – caused by variations in day-length during the larval stage, but it is quite possible to see ‘ catilla ‘ and ‘crocale ‘ side by side at certain times of year.

It may seem odd therefore that the 3 specimens illustrated here were all photographed at the same location in Taman Negara, on the same day – 12th May – and that they all appear to be freshly emerged.

The logical conclusion is that the eggs were laid at different times, and that some of the resulting larvae developed rapidly and others much more slowly, thereby producing different adult forms which all emerged at the cxtopsilia time.

Catopsilia pomona pomonamale, f. In Malaysia it occurs at altitudes between sea level and at least metres.

Butterflies of Malaysia – Catopsilia pomona

Catopsilia pomona crocalef. They are laid singly or in small batches on the foodplants. The caterpillar when fully grown produces 2 morphs, one being yellowish ccatopsilia peppered with tiny black dots, and the other being pale yellowish brown.


Both forms have a broad black stripe along the side, below which is a slightly narrower cream stripe. It feeds diurnally on many trees, shrubs and herbaceous plants in cagopsilia Leguminosae Fabaceaefavouring Cassia but also using ButeaBauhiniaPterocarpusSenna and Sesbania. The chrysalis is of the typical Pierid shape, pale catkpsilia in colour, with a thin yellow line along the sides and a blue-green line along the back. It is attached by the cremaster and a silken girdle to the underside of a leaf, or to a stem.

Adult behaviour The butterflies are strongly migratory in habit, and can be seen flying in undulating “strings” of a dozen or so adults, travelling up and down the rivers which they use as migration corridors linking their high and low elevation breeding sites. During these migrations pompna sexes, but especially the males, can be observed congregating in large groups on sunlit riverbanks and sandbars where they settle for long periods to imbibe mineralised moisture.

Both sexes also commonly visit flowers including LantanaJatropha and Catunaregam. Habitats – Tropical rainforests. Butterflies of the World: Moths of the Andes. Caterpillars of the World.