Grass Demon
Common NameGrass Demon
Scientific NameUdaspes folus
FamilyHesperiidae
SubfamilyHesperiinae
Wingspan (mm)38
Wing Patternspotted
Primary Colorsdark brown, white
HabitatOpen grassy areas, forest clearings, gardens, agricultural lands
Geographic RangeSouth Asia, Southeast Asia (e.g., India, Sri Lanka, Myanmar, Thailand, Malaysia, Indonesia, Philippines)
Host Plantsginger, turmeric, cardamom, bamboo, rice
Flight PeriodYear-round in tropical regions, multiple broods
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host plants. Larvae are green with a dark head, often creating leaf rolls. Pupation occurs in a silken cocoon within a leaf.
Identification TipsLook for the distinctive pattern of large, rectangular white spots on a dark brown background, especially the prominent white patch on the hindwing underside. Like other skippers, it has a robust body and hooked antennae.
Description
A medium-sized skipper with dark brown wings featuring prominent, rectangular white spots on both forewings and hindwings, with a large white patch on the hindwing underside.
