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Species Ennomos subsignaria - Elm Spanworm - Hodges#6798

Elm Spanworm - Ennomos subsignaria 6798 - Ennomos subsignaria Elm Spanworm Moth - Ennomos subsignaria Elm Spanworm - Hodges#6798 - Ennomos subsignaria Little white moth - Ennomos subsignaria moth - Ennomos subsignaria White moth - Ennomos subsignaria No. 225 Ennomos subsignaria? - Ennomos subsignaria - 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 Ennomini
Genus Ennomos
Species subsignaria (Elm Spanworm - Hodges#6798)
Hodges Number
6798
Size
wingspan in the 35-40 mm range, based on CBIF image
Identification
"Pure white except for yellow branches on bipectinate antennae. Easily separated from other all-white species by angled outer margin of FW."
[description by Charles Covell (1)]
Range
from Texas to Alberta and east to the Atlantic
Season
adults fly in July and August, earlier (late April-June) in Texas and southern states
larvae present from May to July
Food
larvae feed on elm, apple, birch, maple, and oak
Life Cycle
one generation a year
See Also
Eugonobapta nivosaria - Snowy Geometer - Hodges#6965
Shape of forewing is different.
Internet References
live adult images (Lynn Scott, Ontario)
adult images (Larry Line, Maryland)
several images and biology info (Pennsylvania State U.)
live larva image and other info (US Geological Survey)
live larva image (forestpests.org)
common name reference and other info (Ohio State U.)
Works Cited
1.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.