Description : The No Brand Grass Yellow appears similar to many of its relatives in the genus Eurema, with the main difference in the forewing black borders, where it is regularly scalloped and not deeply excavated between veins 2 and 4 as in the other species. There are no cell spots on the underside of the forewings - a characteristic that is mainly used to identify the lookalike species in the genus. Males do not possess a brand along the cubital vein like in the other species. The undersides of both sexes have more freckled brown spots peppered over the hindwings. The underside of the females are more distinctive in that the hindwings are paler yellow than the forewings. Habitat & habits : This species was recently re-discovered in an open patch of cleared land slated for development. Like the other species in the genus, the No Brand Grass Yellow was common and almost even abundant in the vicinity of the host plants. Females were ovipositing busily, with the males fluttering in the nearby open grassy areas, feeding on wild flowers. Other Observations : The species is not common, and was not observed in the past decade in the usual areas where other species of Eurema abound. The occurrence of its host plant is not known, except for certain areas of secondary growth. Early
Stages : The caterpillar has been bred on
the Leguminosae Cassia mimosoides. The late instar caterpillar is
green with a dark green line along its back, with two pale yellow lines along
the sides. The host plant is not commonly seen, and this may be the reason
why this species was not observed for a long time in Singapore. |
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