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Species Trichordestra tacoma - Hodges#10303

Tacoma Cutworm Moth - Trichordestra tacoma Trichordestra tacoma Moth - Trichordestra tacoma Trichordestra tacoma Trichordestra tacoma
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Noctuinae (Cutworm or Dart Moths)
Tribe Hadenini
Genus Trichordestra
Species tacoma (Trichordestra tacoma - Hodges#10303)
Hodges Number
10303
Synonyms and other taxonomic changes
Lacanobia tacoma
described in 1900 by Strecker, who originally placed it in genus Mamestra
Size
wingspan about 30 mm, based on photos by Jim Vargo at MPG
Identification
Adult: forewing brownish-gray with dark gray patches; subterminal area pale purplish-gray; subterminal line whitish, with distinct W-shaped jog near middle; hindwing yellowish-gray with dark veins and broad dark terminal band; fringe pale basally, dark distally
Range
across southern Canada and northern United States, south in the west to California
Season
adults fly from May to July
Food
larvae feed on willow, willowherb, chokecherry, elderberry, blueberry, spiraea, birch, spreading dogbane, and other shrubs and low plants [Handfield, 1999]
See Also
Aster Cutworm (Trichordestra lilacina) and Wrinkled Trichordestra (T. rugosa) both lack a W-shaped jog in subterminal line on forewing (compare images of all 3 species at CBIF)
Print References
Handfield, Louis. 1999. Les Guides des Papillons du Quebec. Broquet. 662 pp.
Internet References
live adult images plus detailed description, foodplants, flight season (Lynn Scott, Ontario)
pinned adult image and photos of related species by Jim Vargo (Moth Photographers Group)
presence in California list of 2 specimen records with dates and locations (U. of California at Berkeley)
distribution in Canada list of provinces (U. of Alberta, using CBIF data)