IdentificationA small (2.3-2.4cm wingspan) broad-winged grey-brown moth. A continuous contrasting narrow dark median band and a narrower post-median line cross both sets of wings. The area beyond the postmedian line on the forewings is suffused with dark scales, in particular the upper two-thirds. The discal marks on all four wings are small or almost obsolete. Very similar to S. frigidaria except for the dark suffusion on the outer part of the forewings, which is diagnostic for siccata.
Scientific NameScopula siccataHabitat
Adults have been collected in the dry eastern slopes in the mountains south of the Crowsnest Pass.
Identification
A small (2.3-2.4cm wingspan) broad-winged grey-brown moth. A continuous contrasting narrow dark median band and a narrower post-median line cross both sets of wings. The area beyond the postmedian line on the…
A small (2.3-2.4cm wingspan) broad-winged grey-brown moth. A continuous contrasting narrow dark median band and a narrower post-median line cross both sets of wings. The area beyond the postmedian line on the forewings is suffused with dark scales, in particular the upper two-thirds. The discal marks on all four wings are small or almost obsolete. Very similar to S. frigidaria except for the dark suffusion on the outer part of the forewings, which is diagnostic for siccata.
Life History
Almost nothing is known
Range
A western species, found from northern Colorado north across Wyoming, western Montana and Idaho to the southern BC and extreme southwest Alberta. In Alberta it has been collected only in the area south of Crowsnest…
A western species, found from northern Colorado north across Wyoming, western Montana and Idaho to the southern BC and extreme southwest Alberta. In Alberta it has been collected only in the area south of Crowsnest Pass, at Beaver Mines Lake.
Notes
Another drab little western moth that reaches Alberta only in the dry eastern slopes in the mountains south of the Crowsnest Pass, where Ted Pike collected a series of 3 specimens on July 14, 1993.
Citation
Page Citation for Scopula siccata
Page Citation
"Species Details - Scopula siccata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6342. Accessed 07 Oct. 2024.
References
AuthorCovell, C. V., Jr.
TitleA revision of the North American species of the genus Scopula (Lepidoptera: Geometridae).
Publication Date1970
Series TitleTransactions of the American Entomological Society
Volume96
Pages101-221
Specimen Information
There are 4 specimens of this Species.
4 results plotted on map in 3 markers. Note: Only records with latitude and longitude coordinates are plotted on map.