Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


Species Euxoa mimallonis - Ruddy-winged Dart - Hodges#10738

Euxoa sp. - Euxoa mimallonis Red Euxoa Cains River - Euxoa mimallonis Apamea contradicta - Northern Banded Quaker - Hodges#9394 - Euxoa mimallonis Euxoa mimallonis  - Euxoa mimallonis Euxoa mimallonis  - Euxoa mimallonis Tricholita signata - Euxoa mimallonis Tricholita signata - Euxoa mimallonis Sordid Dart  - Euxoa mimallonis
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 Noctuini
Subtribe Agrotina
Genus Euxoa
No Taxon (Subgenus Palaeoeuxoa)
Species mimallonis (Ruddy-winged Dart - Hodges#10738)
Hodges Number
Synonyms and other taxonomic changes
Euxoa mimallonis (Grote, 1873)
described in 1873 by Grote, who originally placed it in genus Agrotis
Phylogenetic sequence #933315
Forewing length 15-17 mm.(1)
Adult: forewing variably bright to dull reddish or orangish with faint AM and PM lines, and dark reniform and orbicular spots sometimes outlined in pale scales; hindwing bright white in male, and dirty white, shading to sooty gray with white fringe in female
Newfoundland and Nova Scotia to British Columbia, south in the east to New York, Michigan, Minnesota, and south in the west to New Mexico, Arizona, California
dry open woodlands, edges, meadows, grasslands; adults are nocturnal and come to light
adults fly from July to September
Life Cycle
one generation per year; overwinters as an egg
See Also
Sordid Dart (Euxoa adumbrata) forewing is either boldly marked or a darker reddish, and the hindwing of the male is sooty gray, not bright white (compare images of both species at CBIF)
Print References
Lafontaine, J.D., 1987. The Moths of America North of Mexico, Fascicle 27.2. The Wedge Entomological Research Foundation. p. 33; pl. 1, figs. 19-21.(2)
Powell, J.A., and P.A. Opler 2009. Moths of Western North America. University of California Press. pl. 57, fig. 12; p. 310.(1)
Internet References
pinned adult images of female (top) and male (CBIF)
presence in New York; list (Timothy McCabe, Olive Natural Heritage Society, New York)
presence in California; list of 8 specimen records with dates and locations (U. of California at Berkeley)
distribution in Canada; list of provinces of occurrence (U. of Alberta, using CBIF data)