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

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of 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

Previous events


Species Hemithea aestivaria - Common Emerald - Hodges#7083

Hemithea aestivaria Common Emerald - Hemithea aestivaria Emerald Moth ? - Hemithea aestivaria Hemithea aestivaria Green Moth - Hemithea aestivaria Hemithea aestivaria Green moth Redmond WA - Hemithea aestivaria Hemithea aestivaria
Show images of: caterpillars · adults · both
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 Geometrinae (Emeralds)
Tribe Hemitheini
Genus Hemithea
Species aestivaria (Common Emerald - Hodges#7083)
Hodges Number
Synonyms and other taxonomic changes
Hemithea aestivaria (Hübner, [1799]) (1), (2)
Phalaena Geometra strigata O. F. Müller, 1764
Nemoria alboundulata (Hedemann, 1879) (1)
Phylogenetic sequence # 208050
The only named species of Hemithea in America north of Mexico. (3), (1)
Forewing length:(1)
♂ 13-16 mm.
♀ 13-19 mm.
Larva to 27 mm.
This distinctive pale green species has a sharp angle in the hindwing. The fringes are brown and white checkered. Body green with reddish-brown at the tail end. (1)
British Columbia and Washington. (1)
Moth Photographers Group - large map with some distribution data.
Ferguson mentions only July specimens. (1)
Moth Photographers Group has May to August records. (3)
Larvae feed on many shrubs and both coniferous and hardwood trees including Eastern White-cedar and Larch. (1)
Life Cycle
Overwinters as a larva. (1)
Common in Europe. First North American report in 1979 (Doganlar & Beirne, 1979), centered in Vancouver, B.C. and expected to spread outwards from there.(1)
See Also
No other western species has sharply angled hindwing and brown and white checkered fringes. (1)
Compare to related species on the pinned plates of Moth Photographers Group.
Print References
Ferguson, D.C., 1985. The Moths of America North of Mexico, Fascicle 18.1. p. 121.(1)
Powell, J.A., & P.A. Opler 2009. Moths of Western North America. p. 221, pl. 31.24.(4)
Works Cited
1.The Moths of America North of Mexico Fascicle 18.1. Geometroidea, Geometridae (Part), Geometrinae
Douglas C. Ferguson . 1985. The Wedge Entomological Research Foundation.
2. A revision of the moths of the subfamily Geometrinae of America north of Mexico (Insecta, Lepidoptera)
Douglas C. Ferguson. 1969. Peabody Museum of Natural History Yale University Bulletin 29.
3.North American Moth Photographers Group
4.Moths of Western North America
Powell and Opler. 2009. UC Press.