Yellow Spot Swift
Common NameYellow Spot Swift
Scientific NamePolytremis lubricans
FamilyHesperiidae
SubfamilyHesperiinae
Wingspan (mm)35
Wing Patternspotted
Primary Colorsbrown, orange, white
HabitatOpen grassy areas, forest edges, clearings, gardens
Geographic RangeOriental region, including India, Southeast Asia, China, Taiwan, Japan
Host PlantsImperata cylindrica, Saccharum officinarum, Oryza sativa
Flight PeriodMultiple broods, generally March to November in warmer regions
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host grasses. Larvae feed on grass leaves, often constructing shelters by rolling leaves, and pupate within a silken cocoon.
Identification TipsKey features include the warm brown wings with a distinct band of white spots on the forewing, a robust body, and antennae with a hooked club. The underside is often paler brown with similar spot patterns.
Description
This is a medium-sized skipper with a warm brown to orange-brown upperside, characterized by a prominent discal band of white spots on the forewing and a few smaller apical spots. Its body is robust and hairy, typical of skippers.
