Species Details
Crambus bidens
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityLate July to early August.
IdentificationA small Crambus (18-22 mm wingspan). Forewing yellowish or brownish ochre; scimitar-shaped silver streak unusually wide, almost reaching the costa, sometimes with a broad brown longitudinal ray, strongly toothed below; no silver patch between streak and subterminal line but middle of terminal space white; subterminal line zigzag; black, somewhat elongate dots in the lower part of the terminal line; hind wing smoky with a white fringe. There is really nothing else that is similar.
Scientific Name
Crambus bidens
Habitat
Mainly in bogs.
Seasonality
Late July to early August.
Identification
A small Crambus (18-22 mm wingspan). Forewing yellowish or brownish ochre; scimitar-shaped silver streak unusually wide, almost reaching the costa, sometimes with a broad brown longitudinal ray, strongly toothed below;…
A small Crambus (18-22 mm wingspan). Forewing yellowish or brownish ochre; scimitar-shaped silver streak unusually wide, almost reaching the costa, sometimes with a broad brown longitudinal ray, strongly toothed below; no silver patch between streak and subterminal line but middle of terminal space white; subterminal line zigzag; black, somewhat elongate dots in the lower part of the terminal line; hind wing smoky with a white fringe. There is really nothing else that is similar.
Life History
Early stages unknown.
Conservation
Seldom encountered, but probably under collected and of no concern.
Diet Info
Larval host plants unknown.
Range
A North American species known from Massachusetts and New York (Fernald 1896, Forbes 1923), Ontario (Kearfott 1908), New Jersey (Forbes 1923), Quebec (Forbes 1923, Handfield 1997); and from Michigan (Scholtens 1996).…
A North American species known from Massachusetts and New York (Fernald 1896, Forbes 1923), Ontario (Kearfott 1908), New Jersey (Forbes 1923), Quebec (Forbes 1923, Handfield 1997); and from Michigan (Scholtens 1996). In Alberta, known only from the Edmonton area.
Citation
Page Citation for Crambus bidens
Page Citation
"Species Details - Crambus bidens, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2919. Accessed 11 May. 2025.
References
Author
Kearfott, W.D.
Title
Descriptions of new species of North American Crambid moths.
Publication Date
1908
Series Title
Proceedings of the United States National Museum
Volume
35
Pages
376-393
Author
Forbes, W.T.M.
Title
Lepidoptera of New York and Neighboring States. Primitive Forms, Microlepidoptera, Pyraloids, Bombyces.
Publication Date
1923
Series Title
Cornell University Agricultural Experiment Station. Memoir
Volume
68
Pages
1-729
Author
Handfield, L.
Title
Liste des Lépidoptères du Québec et du Labrador.
Publication Date
1997
Series Title
Fabreries, Supplément
Volume
7
Pages
1-155
Author
Fernald, C.H.
Title
The Crambidae of North America
Publication Date
1896
Pages
93pp
Specimen Information
There are 3 specimens of this Species.
UASM39026 - Crambus bidens
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1936-08-06
UASM39027 - Crambus bidens
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1948-08-27
UASM42514 - Crambus bidens
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1924-08-26