Bolshecapnia sasquatchi (Ricker)

Baumann, Richard W. & Potter, David S., 2007, What Is Bolshecapnia Sasquatchi Ricker? Plus A New Species Of Bolshecapnia From Montana (Plecoptera: Capniidae), Illiesia 3 (15), pp. 157-162 : 158-159

publication ID	https://doi.org/ 10.5281/zenodo.4754713
DOI	https://doi.org/10.5281/zenodo.4758191
persistent identifier	https://treatment.plazi.org/id/03DCF278-656B-FFE8-FED2-1F7B622DE756
treatment provided by	Felipe
scientific name	Bolshecapnia sasquatchi (Ricker)
status

Treatment

Bolshecapnia sasquatchi (Ricker) View in CoL

(Figs. 1-6, 13, 14)

Capnia (Bolshecapnia) sasquatchi Ricker, 1965:482 View in CoL .

Holotype ♂ (Canadian National Collection). Fraser River, Agassiz , British Columbia .

Bolshecapnia sasquatchi: Ricker & Scudder, 1975:338 View in CoL .

Material examined. All available specimens of B. sasquatchi were examined as part of this study. The

following locality records represent B. sasquatchi .

CANADA, British Columbia: Fraser River, Agassiz , 21 February 1958, W.E. Ricker, 1 ♂, Holotype ( CNCI); Similkameen River , Cambie Creek Ski Area , Manning Provincial Park , 19 March 1983, S.G. Cannings, 1 ♂ ( SMDV); Skagit River , Manning Provincial Park , 18 March 1983, S.G. Cannings, 1 ♂ ( SMDV). UNITED STATES, Washington: Lewis Co., Ohanapecosh River , Hwy 143, Mount Rainier National Park , 17 March 1970, D.S. Potter and R.A. Haick, 2 ♂ ( BYUC); 16 March 1973, D.S. Potter and L.M. Preble, 1 ♂ ( BYUC). Whatcom Co. , Razor Hone Creek , Hwy 542, Mount Baker , 4 March 1967, K.E. Vander Mey, 2 ♂, 6 ♀ ( BYUC).

Female. Body and wings dark brown to black, wings fumose, macropterous; length of forewings 8.5-9.5 mm; length of body 7.5-9.0 mm. Subgenital plate broader than long, with only a few hairs on lateral margins, posterior margin straight and not notched (Figs. 13-14).

Remarks. Bolshecapnia sasquatchi has a relatively short epiproct and the tip does not reach the margin of tergum eight in relaxed specimens. The dorsal plate is large and broad and extends to nearly ½ the length of the epiproct. The basal lobe is directed upward very slightly in a sinuate shape and ends in a broad apex. The tip is rounded dorsally and shaped like an upside down foot laterally (Figs. 1-6). The female subgenital plate of B. sasquatchi has a straight posterior margin, while in B. missiona it has a notch. Nebeker and Gaufin (1967) do not mention the median posterior notch in the subgenital plate in their description, nor is it shown in their illustration. However, we examined a large number of specimens from Montana and all had the notch.