Common NameCowhead ArchesSeasonalityAdults are on the wing in June.IdentificationWing base and thorax reddish-brown, antemedian band broad and joined to reniform patch. The only Drasteria in Alberta without black markings in the basal half of the hindwing (black discal crescent absent). Black PM band broadly joined to marginal band.
Scientific NameDrasteria pallescensCommon Name
Cowhead Arches
Habitat
Occurs in prairie badlands in Alberta.
Seasonality
Adults are on the wing in June.
Identification
Wing base and thorax reddish-brown, antemedian band broad and joined to reniform patch. The only Drasteria in Alberta without black markings in the basal half of the hindwing (black discal crescent absent). Black PM…
Wing base and thorax reddish-brown, antemedian band broad and joined to reniform patch. The only Drasteria in Alberta without black markings in the basal half of the hindwing (black discal crescent absent). Black PM band broadly joined to marginal band.
Life History
Adults come to light.
Conservation
Few records, restricted to prairie badlands.
Diet Info
The larval hostplants are unknown.
Range
Alberta and Saskatchewan south to Texas and Baja California (Richards 1939).
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Citation
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Page Citation for Drasteria pallescens
Page Citation
"Species Details - Drasteria pallescens, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2913. Accessed 25 Mar. 2023.