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Species Petrophila confusalis - Hodges#4780

Moth - Petrophila confusalis small tan and white moth - Petrophila confusalis small tan and white moth - Petrophila confusalis Confusing Petrophila Moth - Petrophila confusalis Petrophila confusalis? - Petrophila confusalis Petrophila confusalis? - Petrophila confusalis Crambidae: Petrophilia confusialis - Petrophila confusalis Petrophila confusalis
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 Pyraloidea (Pyralid and Crambid Snout Moths)
Family Crambidae (Crambid Snout Moths)
Subfamily Acentropinae
Tribe Argyractini
Genus Petrophila
Species confusalis (Petrophila confusalis - Hodges#4780)
Hodges Number
4780
Synonyms and other taxonomic changes
Petrophila confusalis (Walker, 1866)
Cataclysta confusalis Walker, 1866 (1)
Elophila truckeealis Dyar, 1917
Numbers
15 species in the genus for North America north of Mexico.(2)
Size
forewing length 5-11 mm.
Adults have considerable size variation.(2)
Range
Throughout eastern United States and California to Oregon
Food
larvae feed on algea on rocks in fast moving streams See "An introduction to the aquatic insects of North America" in internet references below)
Life Cycle
adult females enter the water, up to 4 meters deep, to oviposit (200 - 300 eggs), carrying a plastronlike layer of air as a source of oxygen that sustains them from 4 to 12 hours. After ovipositing they die in the water. Some females only submerge partially, without fully breaking the water tension, and deposit eggs shallowly over several days (2)
Print References
Dyar, H. G. 1917: Notes on North American Nymphulinae (Lepidoptera, Pyralidae). – Insecutor Inscitiae Menstruus, Washington 5 (4–6): 76.
Powell, J. A. & P. A. Opler, Moths of Western North America, Pl. 23.48m; p. 180(2)
Walker, F. 1866: 1334 (1)
Internet References
Moth Photographers Group - range map, photos of living and pinned adults.
Moth Photographers Group - photograph of pinned adult and related species for comparison.