Hill Grass Yellow
Common NameHill Grass Yellow
Scientific NameEurema simulatrix
FamilyPieridae
SubfamilyColiadinae
Wingspan (mm)45
Wing Patternspotted
Primary Colorsyellow, black
HabitatOpen grasslands, forest clearings, scrubland, gardens, often near water sources for mud-puddling.
Geographic RangeSouth and Southeast Asia, including India, Sri Lanka, Myanmar, Thailand, Malaysia, Indonesia, and parts of China.
Host PlantsSenna, Albizia, Acacia
Flight PeriodYear-round in tropical regions, with peak abundance often after monsoon seasons.
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on the leaves of host plants. The caterpillars are typically green and cylindrical, feeding on the foliage. Pupation occurs on the host plant, with the chrysalis usually green and camouflaged.
Identification TipsDistinguished by its vibrant yellow coloration and the specific shape and extent of the black markings on the forewing apex. The underside is typically paler yellow or whitish, often with faint markings, especially in the dry season form.
Description
A medium-sized, bright lemon-yellow butterfly with a distinctive black band on the forewing apex and some faint dark spots on the hindwing, often seen mud-puddling in groups.
