Synonyms and other taxonomic changes
formerly Semiothisa mellistrigata
Identification
forewing light to medium gray or brownish-gray with sparse speckling and conspicuous dark yellow AM and PM lines; PM line curves gently from inner margin toward apex, then bends sharply forward near costa before touching costa; AM line straight except for sharp forward bend near costa; dark solid discal spot fairly close to costa; variable dark shading bordering distal edge of PM line; terminal line a series of dark dots
hindwing slightly paler with distinct brownish PM line and discal spot
Range
Nova Scotia to New Jersey, west to Nebraska, north to Alberta
Season
adults fly from early May to late August (in Quebec)
Food
larvae feed on leaves of willow (Salix spp.)
See Also
Digrammia neptaria is similar but slightly larger, and has a more sinuous PM line, a hollow discal spot on the forewing, and an indistinct or missing PM line on the hindwing (
compare images of both species)
Internet References
pinned adult image collected by Titian Peale in 1873, plus collection localities (The Titian Peale Butterfly and Moth Collection, Academy of Natural Sciences, Pennsylvania)
food plant; PDF doc plus flight season and life cycle (Macrolepidoptera of Mont Saint-Hilaire Region, McGill U., Quebec)
distribution in Canada list of provinces (CBIF)
presence in Nebraska - 1 record from 1995 [search on "mellistrigata"] (Lepidopterists Season Summary, U. of Florida)
Contributed by
Robin McLeod on 26 January, 2006 - 1:53am
Additional contributions by
Steve MorrisLast updated 23 December, 2022 - 7:37am