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Species Euchlaena tigrinaria - Mottled Euchlaena - Hodges#6737

Mottled Euchlaena - Euchlaena tigrinaria - male Moth - Euchlaena tigrinaria - female Mottled Euchlaena (Ventral) - Euchlaena tigrinaria Mottled Euchlaena? - Euchlaena tigrinaria - male moth - Euchlaena tigrinaria - male Euchlaena tigrinaria Euchlaena tigrinaria - male Mottled euchlaena - Euchlaena tigrinaria - male
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 Angeronini
Genus Euchlaena
Species tigrinaria (Mottled Euchlaena - Hodges#6737)
Hodges Number
6737
Size
wingspan 33-41 mm
Identification
Adult: forewing color varies from bright orangish-yellow to medium yellowish-brown, darker beyond single fairly straight PM line; dark gray or black speckling intermixed with several larger blotches (speckling not as conspicuous against ground color of darker specimens); outer margin with shallow point but otherwise straight-edged, not wavy; pale patch at apex bordered by apical dash
hindwing similarly colored, with 2 or 3 shallow scallops along upper half of outer margin

Larva: body silver and gray with dorsal patches of reddish-brown; posterior of A1 and A5 with subdorsal wart; rests in typical dead-twig posture with only hindlegs resting on substrate
Range
New Brunswick to Virginia, west to Texas, Utah, and Oregon, north to British Columbia
Habitat
deciduous forests and parks
Season
adults fly from April to August in the south; May or June to July in the north
larvae in April and May
Food
larvae feed on leaves of Trembling Aspen (Populus tremuloides), White Birch (Betula papyrifera), Buffaloberry (Shepherdia canadensis), Red-osier Dogwood (Cornus sericea = stolonifera), Beaked Hazel (Corylus cornuta), oak, Oceanspray (Holodiscus discolor), Lodgepole Pine (Pinus contorta), Saskatoon Serviceberry (Amelanchier alnifolia), willow
Life Cycle
one generation per year
See Also
other Euchlaena moths (compare images of 9 species)
Internet References
Moth Photographers Group - range map, photos of living and pinned adults.
pinned adult images showing variation in color and markings (CBIF)
pinned adult image plus description, common name reference, habitat, food plants, distribution (G.G. Anweiler, U. of Alberta)
pinned adult image plus description, food plants, similar species (Jeff Miller, Macromoths of Northwest Forests and Woodlands; USGS)
live larva image plus description and seasonality (Jeff Miller, Caterpillars of Pacific Northwest Forests and Woodlands; USGS)
presence in Utah; list (Utah Lepidopterists Society)
distribution in Canada list of provinces (CBIF)