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.)
Contributed by
Robin McLeod on 31 July, 2007 - 12:32am
Additional contributions by
Randy HardyLast updated 9 September, 2013 - 6:04pm