Uncas Skipper
Common NameUncas Skipper
Scientific NameHesperia uncas
FamilyHesperiidae
SubfamilyHesperiinae
Wingspan (mm)35
Wing Patternspotted
Primary Colorsbrown, white, tan
HabitatDry grasslands, prairies, open woodlands, sagebrush flats
Geographic RangeWestern North America, from southern Canada through the western United States to central Mexico
Host PlantsBouteloua gracilis (blue grama), Stipa comata (needle-and-thread grass), other native grasses
Flight PeriodMay to October (multiple broods depending on latitude)
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host grasses. Larvae feed on grasses, constructing shelters, and typically overwinter as partially grown larvae.
Identification TipsLook for the unique pattern of white rectangular spots on the hindwing underside and forewing upperside, often forming a 'dog-bone' shape on the hindwing. The greenish-brown hairy body is also a key characteristic.
Description
A medium-sized skipper with tawny-brown wings featuring a distinctive pattern of white rectangular spots, especially prominent on the hindwing underside. Its body is hairy and often appears greenish-brown.
