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



Species Orthosia transparens - Hodges#10479

Orthosia - Orthosia transparens Unknown moth - Orthosia transparens Orthosia transparens ? - Orthosia transparens brown moth  - Orthosia transparens unidentified moth - Orthosia transparens Orthosia transparens Owlet Moth - Orthosia transparens Owlet Moth - Orthosia transparens
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 Orthosia
Species transparens (Orthosia transparens - Hodges#10479)
Hodges Number
wingspan 32-40 mm
Adult: forewing uniformly light to dark reddish-brown, rectangular, with sharply-pointed apex; outer margin straight or slightly falcate; reniform spot dark grayish, barely darker than ground color; PM line a gently curving series of dark dots; hindwing dark gray with faint black discal spot and brown fringe; male antennae filiform; head and thorax dark brown, contrasting with lighter grayish abdomen
west coast from British Columbia to California
dry forests
adults fly in late winter and spring
larvae feed on leaves of Madrone (Arbutus menziesii) and Rhododendron species
See Also
Orthosia mys has more red in its forewing and thorax, the hindwing is pale pinkish, and moths fly in the fall (compare images of both species)
Orthosia pulchella has very dark gray wings and a black thorax; males have pectinate antennae (compare images of both species)
Internet References
pinned adult image plus description, food plants, flight season (Jeff Miller, Macromoths of Northwest Forests and Woodlands; USGS)
pinned adult image and technical description (California Dept. of Food and Agriculture)
25 specimen records from California plus locations and dates (U. of California at Berkeley)
distribution in Canada BC only (U. of Alberta, using CBIF data)