|scientific name Pseudoschoenobius opalescalis |
Dry, sandy areas.
May and July.
An unusual Crambid with long, narrow fore wings and a wingspan of around 30 mm. The fore wings are ashy-gray (cinereous) with numerous white scales between the veins, have a small elongate stigma in the outer third and a rounded apex; while the hind wings are opalescent and triangular. AM, PM and ST lines are lacking in the forewings above. The palpi are porrect and about three times the length of the head. The fringe is well developed and of the same color as the wings. The head and thorax are cinereous while the abdomen is fuscous. Unlike any other Alberta Crambid. This species is regarded as belonging to the tribe Ancylolomiini, subfamily Crambinae of the family Crambidae.
Rare in Alberta, known from only two collections.
Described from Arizona by Hulst (1886) as Schoenobius opalescalis. Also known from California (Fernald 1896) and Illinois. Reported from Area 1 (extreme Southeast) in Alberta by Bowman (1951). Recently collected from the Pakowki Lake dunes from a site that had both stabilized vegetated sand and active dune blowouts, by G.G. Anweiler on May 19, 2005.
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