Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Sitochroa chortalis - Dimorphic Sitochroa Moth - Hodges#4987

Dimorphic Sitochroa Moth - Sitochroa chortalis Dimorphic Sitochroa Moth - Sitochroa chortalis - female Sitochroa chortalis Crambidae: Sitochroa chortalis - Sitochroa chortalis Crambidae: Sitochroa chortalis - Sitochroa chortalis Moth - Sitochroa chortalis Crambidae, dorsal - Sitochroa chortalis Crambidae, pre-pupa on Bastard Toadflax - Sitochroa chortalis
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Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Pyraloidea (Pyralid and Crambid Snout Moths)
Family Crambidae (Crambid Snout Moths)
Subfamily Pyraustinae
Genus Sitochroa
Species chortalis (Dimorphic Sitochroa Moth - Hodges#4987)
Hodges Number
4987
Synonyms and other taxonomic changes
Sitochroa chortalis (Grote, 1873)
Eurycreon chortalis Grote, 1873(1)
Loxostege chortalis Harvey, 1750
Numbers
One of three species in North America.
Size
Wingspan 22-27 mm.
Identification
Adult: forewing either light yellowish-brown with obvious "feathered" pattern in distal half, or uniformly yellowish with faint or almost no markings
hindwing light gray with darker brown terminal band.
Range
United States and southern Canada (Nova Scotia to Maryland, west to Arizona and California, north to British Columbia); absent from southeastern states.
Habitat
Habitat consists of grassland and prairie.(2)
Season
Adults fly from May to September.(3)
Food
Larvae feed on Green Amaranth (Amaranthus retroflexus), a common weed often referred to as pigweed.
See Also
Sitochroa dasconalis has yellow at base and along costa but most of forewing is whitish, and hindwing is white with no dark terminal band; S. dasconalis occurs in eastern U.S. but apparently doesn't reach Canada, and its larvae feed on Wild Indigo (Baptisia tinctoria).
Print References
Grote, A. R. 1873. Description of new North American moths. Bulletin of the Buffalo Society of Natural Sciences, 1:89.(1)
Works Cited
1.I. Description of new North American moths.
Augustus Radcliffe Grote. 1873. Bulletin of the Buffalo Society of Natural Sciences 1: 1-16.
2.BOLD: The Barcode of Life Data Systems
3.North American Moth Photographers Group