yellow-streaked swift
Common Nameyellow-streaked swift
Scientific NamePolytremis lubricans
FamilyHesperiidae
SubfamilyHesperiinae
Wingspan (mm)40
Primary Colorsdark brown, yellow, orange
HabitatOpen grasslands, forest edges, disturbed areas, agricultural fields
Geographic RangeSouth and Southeast Asia, including India, Sri Lanka, Myanmar, Thailand, Malaysia, Singapore, Indonesia, Philippines, China, Taiwan, Japan
Host PlantsImperata cylindrica, Saccharum officinarum, Oryza sativa, various grasses (Poaceae)
Flight PeriodYear-round in tropical regions, with multiple broods
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host grasses. Larvae are typically green, feeding on grass leaves, and pupate in a silken cocoon among the foliage.
Identification TipsIdentified by its dark brown wings with bright yellow-orange streaks and spots, especially the prominent discal streaks on the forewing. Like other skippers, it has a robust body and clubbed antennae with a hooked tip.
Description
A medium-sized skipper with dark brown wings featuring prominent yellow-orange streaks and spots, particularly on the forewings, and a robust, hairy body.
