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

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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Iridopsis emasculatum - Hodges#6589

Iridopsis emasculata - Iridopsis emasculatum - female Iridopsis emasculatum Emasculated Grey/Gray - Iridopsis emasculatum - male Very common Iridopsis - Iridopsis emasculatum - male Iridopsis emasculatum moth - Iridopsis emasculatum - male Iridopsis  - Iridopsis emasculatum - male which Iridopsis? - Iridopsis emasculatum - 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 Boarmiini
Genus Iridopsis
Species emasculatum (Iridopsis emasculatum - Hodges#6589)
Hodges Number
6589
Synonyms and other taxonomic changes
Iridopsis emasculatum (Dyar, 1904) (1)
Selidosema humariam var. emasculatum Dyar, 1904
Iridopsis emasculata (alternate spelling) (1)
* phylogenetic sequence #194900
Size
Forewing length 15-18 mm. (2)
Identification
Adult - resembles Bent-line Gray (Iridopsis larvaria) but waviness of forewing PM line is more regular and has smaller amplitude, and hindwing PM line is not as sharply bent.
Larva - green, yellow, or orange with irregular red bands. (2)
Range
British Columbia south to northern California, Arizona, New Mexico, western Texas. (2)
Season
Single flight from late May until mid-August. (2)
Food
Larval hosts are woody plants; alder, maple, willow, and blueberry. (2)
See Also
Bent-line Gray (Iridopsis larvaria) has more irregular and higher amplitude PM line on forewing, and more sharply bent PM line on hindwing; it's also an eastern species, not found on the US west coast.
Print References
Dyar, H.G. 1904. The Lepidoptera of the Kootenai District of British Columbia. Proceedings of the United States National Museum 27: 910
Powell, J.A. & P.A. Opler 2009. Moths of Western North America. University of California Press. p.208, pl.28.11f (2)
Internet References
pinned adult image plus date and location (Bruce Walsh, Moths of Southeastern Arizona)
presence in California; list of 3 specimen records with dates and locations (U. of California at Berkeley)
presence in Oregon; list of 243 specimens in collection (Oregon State U.)
Works Cited
1.A revision of the moth genus Anacamptodes (Lepidoptera, Geometridae) (1966)
Frederick H. Rindge. 1966. Bulletin of the America Museum of Natural History 132(3).
2.Moths of Western North America
Powell and Opler. 2009. UC Press.