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Species Perizoma custodiata - Hodges#7328

Moth - Perizoma custodiata Moth #08-54 - Perizoma custodiata Moth #08-82 - Perizoma custodiata possible Xanthorhoe defensaria - Perizoma custodiata 7328  - Perizoma custodiata Perizoma custodiata Perizoma - Perizoma custodiata moth ID? - Perizoma custodiata
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 Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Larentiinae
Tribe Hydriomenini
Genus Perizoma
Species custodiata (Perizoma custodiata - Hodges#7328)
Hodges Number
7328
Synonyms and other taxonomic changes
Perizoma custodiata (Guenée, [1858])
Eubolia custodiata Guenée, [1858]
Size
wingspan 22-29 mm
larva length to 30 mm
Identification
Adult: forewing with alternating light and dark brown vertical bands (number and color/intensity of bands varies considerably among individuals); PM line bulges slightly near middle and again near costa; subterminal line, white, distinctly scalloped; hindwing paler, muted gray or yellowish with faint PM, ST, and terminal lines

Larva: body uniformly light green or brown
Range
California and Arizona to Saskatchewan and British Columbia
Habitat
marshy areas where larval foodplant grows
Season
adults fly from March to November in the south (California); May to September in the north (Alberta)
Food
larvae feed on Alkali Seaheath (Frankenia salina) in coastal California, and probably other species of Frankenia farther north and/or inland
Life Cycle
presumably overwinters as a pupa
See Also
Anticlea multiferata forewing has straight ST line (not scalloped) and parallel straight lines across wing; species of Rheumaptera have many zigzag lines across wing (compare images of 4 species at CBIF)
other species of Perizoma have a noticeably different forewing pattern
Print References
Powell, J.A. & P.A. Opler, 2009. Moths of Western North America. University of California Press, p. 226; pl. 32, fig. 17. (1)
Internet References
pinned adult images showing four color variants (CBIF)
pinned adult images (Bruce Walsh, Moths of Southeastern Arizona)
live adult images from Arizona and Utah (Larry Line, Maryland)
flight season chart and pinned adult image by G.G. Anweiler (Strickland Entomological Museum, U. of Alberta)
presence in California 26 specimen records with dates and locations (U. of California at Berkeley)
distribution in Canada list of provinces (CBIF)