Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Spodolepis substriataria - Hodges#6799

Heterocera 22 - Spodolepis substriataria Spodolepis substriataria 6799 Spodolepis(Epirranthis) substriataria  - Spodolepis substriataria Spodolepis substriataria moth - Spodolepis substriataria  Spodolepis(Epirranthis) substriataria 6799 - Spodolepis substriataria Spodolepis substriataria - female Spodolepis striataria - Spodolepis substriataria
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 Epirranthini
Genus Spodolepis
Species substriataria (Spodolepis substriataria - Hodges#6799)
Hodges Number
6799
Synonyms and other taxonomic changes
Epirranthis substriataria - see genus page for info on classification
Numbers
the only species in this genus in North America and the world
Size
wingspan 40-45 mm
Identification
Adult: forewing light gray with black speckling, often with shades of brown along costa and apex; jagged AM and PM lines resemble a dog's head in profile, with the dark discal spot forming the eye; extent of dark markings, including the transverse lines, can be extremely variable, resulting in well-marked, contrasting individuals to almost unmarked gray ones
[adapted from description at U. of Alberta]

Larva: body dark with intricate pattern of black and brown, resembling tree bark or a twig
Range
Alaska to Nova Scotia, south in the east to New Jersey, south in the west to California
Habitat
mixed and coniferous forests
Season
adults fly from April to June (in Alberta)
Food
larvae feed on douglas-fir, pine, poplar, willow
Life Cycle
one generation per year; overwinters as a pupa in thin cocoon in leaf litter
See Also
the "dog's head" pattern on the forewing is distinctive
Internet References
live adult image (Lynn Scott, Ontario)
pinned adult images showing variation in color (CBIF)
pinned adult images (Moth Photographers Group)
overview including habitat, seasonality, description, biology, food plants, distribution (Strickland Entomological Museum, U. of Alberta)
presence in California; list (U. of California at Berkeley)
distribution in Canada list of provinces and territories (CBIF)