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Species Petrophila fulicalis - Feather-edged Petrophila - Hodges#4777

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 fulicalis (Feather-edged Petrophila - Hodges#4777)
Hodges Number
Synonyms and other taxonomic changes
original combination Cataclysta fulicalis Clemens, 1860
* phylogenetic sequence # 144050
Explanation of Names
FULICALIS: the Latin word for a coot is fulica; I don't know how or whether this relates to the moth
wingspan 13-18 mm, based on two Internet photos by Jim Vargo and John Glaser
Adults - forewing ground color white but mostly obscured by grayish-brown bands and dark speckling; three indistinct dark spots form a triangle in median area; diffuse dark band across AM area; two white converging strips project inward from costa near apex; terminal band orangish, widening toward apex; hindwing white with diffuse dark median band, patch of dark speckling near costa, and line of large black pale-centered spots along outer margin. See Heppner's description(1)
e. US (MPG)
larvae live in silken webs attached to rocks in fast-flowing steams
adults fly from late May to October
like other members of the genus, larvae probably feed on diatoms and algae scraped from rocks in streams
See Also
Canadian Petrophila (P. canadensis) forewing lacks three dark spots in a triangular pattern, and its hindwing has a white space between two reddish bands in median area
Two-banded Petrophila (P. bifascialis) lacks black speckling on the hindwing, and lacks three dark spots forming a triangle on the forewing
Eoparargyractis irroratalis forewing has a basal line shaped like a concave arc, and has two dark bands in median area (a thick one and a thin one) separated by white space
Print References
Huffman, I.E.W (1955) The Biology of an Aquatic Pyralid, Cataclysta Fulicalis Clem. (Lepidoptera), and Its Tachinid Parasitoid, Ginglymia Acrirostris Towns. (Diptera).
Welch, P.S. (1922) The Respiratory Mechanism in Certain Aquatic Lepidoptera (download or read online)
Internet References
species page - Lepidoptera Barcode of Life
presence in Michigan; list - Ethan Bright, U. of Michigan
presence in Ontario; list - NHIC; Ontario Ministry of Natural Resources
Works Cited
1.Synopsis of the genus Parargyracytis (Lepidoptera: Pyralydae: Nymphulinae) in Florida
John B. Heppner. 1976. The Florida Entomologist, volume 59, number 1.