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Species Egira crucialis - Hodges#10508

Egira crucialis 1414 Egira crucialis - Crucialis Woodling Moth 10508 - Egira crucialis - male Egira crucialis Egira crucialis Mothception - Egira crucialis Egira crucialis larva  - Egira crucialis Egira crucialis
Show images of: caterpillars · adults · both
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 Orthosiini
Genus Egira
Species crucialis (Egira crucialis - Hodges#10508)
Hodges Number
Synonyms and other taxonomic changes
Egira crucialis (Harvey, 1875)
Xylomiges crucialis Harvey, 1875
Phylogenetic sequence # 932791.
Lafontaine & Schmidt (2010) included 14 species of the genus Egira in America north of Mexico. (1)
Wingspan about 37-40 mm.
Adult: forewing light to medium gray with black basal dash and black markings on either side of orbicular spot and below reniform spot; subterminal line broken into two sets of black dashes set at slight angle to outer margin; hindwing white to pale gray with dark discal spot and broken median and terminal lines.

Larva: early instars pale gray with black dorsal and lateral dots on each abdominal segment, and black head; final instar light yellowish-brown with dark lateral dots on abdomen, and reddish-brown head.
British Columbia to California, east to Texas, north to Montana. (2)
Moth Photographers Group - large map with some collection dates.
Bug Guide - map of photo records submitted to the guide.
Wet coniferous forests in western mountains, and riparian forests at lower elevations.
Most records are from February to July.(MPG)
larvae feed on leaves of alder, Snowbrush (Ceanothus velutinus), Antelope Bitterbrush (Purshia tridentata), Oceanspray (Holodiscus discolor), oak, rose, Salal (Gaultheria shallon), Salmonberry (Rubus spectabilis), and Spiraea
Powell (1986) found larvae on Pseudotsuga menziesii (Pinaceae). (3)
Life Cycle
Overwinters as a pupa; one generation per year.
See Bruce Walsh's page for comments by Don Lafontaine on the possibility of peritalis being a distinct species.
See Also
Egira simplex forewing ground color is paler (more whitish), the black markings are generally heavier and more extensive, and the subterminal line is a straight unbroken series of black dashes.

(compare images of both species at CBIF)
Internet References
live larvae and adult images plus larval description, foodplants, biology (Jeremy Tatum, Butterflies and Moths of Southern Vancouver Island)
Barcode of Life Data Systems (BOLD) - collection map and photos of pinned adults.
adult description and comparison photo of E. simplex, plus habitat and larval foodplants (Jeff Miller, Macromoths of Northwest Forests and Woodlands, USGS)
pinned adult image plus date and location (Bruce Walsh, Moths of Southeastern Arizona)
29 specimen records from California plus locations and dates (U. of California at Berkeley)
distribution in Canada BC only (U. of Alberta, using CBIF data)
Works Cited
1.Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico.
Donald J. Lafontaine, B. Christian Schmidt. 2010. ZooKeys 40: 1–239 .
2.Moths of Dallas County, Texas
3.Records of prolonged diapause in Lepidoptera
Jerry A Powell . 1986. Journal of Research on the Lepidoptera 25(2): 83-109.