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Species Amphipyra glabella - Smooth Amphipyra - Hodges#9640

Unknown Caterpillar - Amphipyra glabella Smooth Amphipyra  - Amphipyra glabella Noctuidae: Amphipyra glabella - Amphipyra glabella Amphipyra glabella Noctuidae - Amphipyra glabella Smooth Amphipyra Moth - Amphipyra glabella Noctuidae: Amphipyra glabella - Amphipyra glabella Owlet Moth - Amphipyra glabella
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Amphipyrinae
Tribe Amphipyrini
Genus Amphipyra
Species glabella (Smooth Amphipyra - Hodges#9640)
Hodges Number
Other Common Names
Grey Amphipyra
Explanation of Names
GLABELLA: from the Latin "glaber" (smooth, bald); perhaps a reference to the forewing, which may appear shiny and smooth under certain lighting conditions
one of four species in the genus (and tribe) in North America
wingspan 33-40 mm
Adult: forewing varies from medium to dark gray (and shiny under certain light) with orbicular and reniform spots reduced to dark dots; PM line curved, with large convex sinus below reniform spot; ST line straight, composed of dark gray dots or streaks at the veins, and forming sharp boundary between gray forewing and contrasting light gray or pale yellowish terminal area
hindwing light gray, darkening toward outer margin; antennae simple; sexes alike
New Brunswick to Florida, west to Utah, north to British Columbia
dry deciduous woods; wooded areas along river valleys; western coniferous forests (?); adults are nocturnal and attracted to light
adults fly from July to September
larvae feed on leaves of Balsam Poplar (Populus balsamifera) and, in the west, Douglas-fir (Pseudotsuga menziesii)
Life Cycle
one generation per year; probably overwinters as an egg
See Also
Capis curvata forewing is darker, browner, and ST line curves outward to apex (compare images of both species)
Internet References