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Species Digrammia neptaria - Dark-bordered Granite - Hodges#6396

Dark-bordered Granite - Digrammia neptaria Moth - Digrammia neptaria Unknown Geometrid - Digrammia neptaria Geometrid - Digrammia neptaria Digrammia neptaria, Digrammia attracted to lights - Digrammia neptaria Digrammia attracted to lights - Digrammia neptaria Digrammia - Digrammia neptaria
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 Ennominae
Tribe Macariini
Genus Digrammia
Species neptaria (Dark-bordered Granite - Hodges#6396)
Hodges Number
6396
Synonyms and other taxonomic changes
Digrammia neptaria (Guenée, [1858])
formerly Semiothisa neptaria
Phylogenetic sequence #189800
Size
Wingspan 25-30 mm.
Identification
Forewing light grayish-brown with speckling and variably faint or bold markings; AM and PM lines bicolored orangish-yellow for most of length, changing to gray near costa; PM line slightly sinuous, the yellowish part bordered distally by diffuse gray or blackish shading; discal spot oval, hollow, sometimes diffuse; median line faint, wavy; terminal line composed of several dark dots.
Hindwing slightly paler, speckled, with faint discal spot; AM and PM lines dark at inner margin, otherwise faded or absent.
Range
Yukon, Northwest Territories, and BC to Newfoundland, south in the east to New Hampshire, south in the west to California, Arizona, New Mexico (one Texas record in 2001)
Moth Photographers Group - large map with some collection dates.
Habitat
Dry Jack Pine forests, sandy pine barrens, and boreal or montane forest; adults are attracted to light.
Season
Adults and larvae from May/June to August/September.
Food
Larvae feed on leaves of willow and poplar.
Life Cycle
One generation per year in the north; two in the south.
See Also
In Digrammia mellistrigata, the PM line is almost straight except for a sharply-bent angle near the costa
D. rippertaria has a more sinuous PM line with less dark shading beyond it
(compare images of all 3 species)
Print References
Powell, J. A., and P. A. Opler 2009. Moths of Western North America. pl. 27.26; p. 205.(1)
Ferguson, D. C., 2008. Moths of America North of Mexico, Fascicle 17.2: p. 311; pl. 8.4-7.(2)
Internet References
pinned adult image (Bruce Walsh, Moths of Southeastern Arizona)
description plus habitat, seasonality, similar species, common name reference, biology, food plants, distribution (U. of Alberta)
distribution in Canada - list of provinces and territories (CBIF)
Works Cited
1.Moths of Western North America
Powell and Opler. 2009. UC Press.
2.The Moths of America North of Mexico, Fascicle 17.2, Geometroidea, Geometridae, Ennominae.
Douglas C. Ferguson . 2008. The Wedge Entomological Research Foundation.