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Species Phigalia strigataria - Small Phigalia - Hodges#6660

Small Phigalia - Phigalia strigataria 18feb2013-lep1 - Phigalia strigataria - male No. 69 Phigalia strigataria-6660? - Phigalia strigataria - male Small Phigalia Moth - Phigalia strigataria Phigalia - Phigalia strigataria Small Phigalia - Hodges#6660 - Phigalia strigataria - male moth 66 - Phigalia strigataria Geometridae: Phigalia strigataria - Phigalia strigataria - female
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 Bistonini
Genus Phigalia
Species strigataria (Small Phigalia - Hodges#6660)
Hodges Number
6660
Synonyms and other taxonomic changes
Phigalia strigataria (Minot) (1)
Anisopteryx strigataria Minot 1869
Numbers
Phigalia has 4 species north of Mexico. (2)
Size
forewing length 14 to 18 mm, females flightless with drastically reduced wings
larva to 3 cm (3)
Range
North Dakota to Texas and eastward. (2)
Habitat
woodlands and forests (3)
Season
True winter moths in the s. where they start flying in January (2), (3)
in the north from March into May (rarely into June)
Food
elm, oak, chestnut, willow, hickory, hazel, sweet gum, etc. (3)
Life Cycle
Larva, pupal (overwintering) shell, adult female, adult male
Remarks
Often confused with Phigalia denticulata; Can be separated by the following:

In denticulata, a very distinct dark “tooth” is located on the M1 vein where it comes off of the discal cell. This is seen as the “3rd tooth” from the costa, evenly spaced along the PM line of denticulata. In strigataria, this marking is either absent (giving the appearance of a gap between two pairs of “teeth”) or greatly reduced to only being a diffuse black spot. See following image for visual.
See Also
P. denticulata. Forewing is paler, with less dark scaling than in P. denticulata, and is faintly olivaceous gray in color. The t. p. and extradiscal lines are straighter, and are not as outwardly dentate on the veins as those of P. denticulata
Internet References
A REVISION OF THE NEW WORLD BISTONINI, Rindge 1975 - description, size, range, season, larval host [Randy Hardy]
Works Cited
1.A revision of the New World Bistonini, (Lepidoptera, Geometridae).
Frederick H. Rindge. 1975. American Museum of Natural History 156(2):.
2.North American Moth Photographers Group
3.Caterpillars of Eastern North America
David L. Wagner. 2005. Princeton University Press.