Sasquacapnia sasquatchi ( Ricker, 1965 ), 2019

Broome, Hannah Jean, Stark, Bill P. & Baumann, Richard W., 2019, A Review Of The Genus Bolshecapnia Ricker, 1965 (Plecoptera: Capniidae), And Recognition Of Two New Nearctic Capniid Genera, Illiesia 15 (1), pp. 1-26 : 22

Sasquacapnia sasquatchi ( Ricker, 1965) ,

New combination http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:505899

( Figs. 67-72 )

Capnia (Bolshecapnia) sasquatchi Ricker, 1965:482 .

Holotype ♂ (Canadian National Collection), Fraser River near Agassiz, British Columbia Bolshecapnia sasquatchi: Ricker & Scudder, 1975:338

Distribution. CANADA: BC ( Ricker 1965, DeWalt et al. 2018), UNITED STATES: WA ( DeWalt et al. 2018, Kondratieff & Lechleitner 2002).

Material examined. CANADA: British Columbia: Fraser River, near Agassiz, 49.206 N, - 121.777 W, 21 February 1958, W.E. Ricker, Holotype ♂ ( CNC). Manning Park, Skagit River , 18 February 1983, S.G. Cannings, 1♂ ( UBCZ). Manning Park, Similkameen River , 19 March 1983, S.G. Cannings, 1♂ ( UBCZ). UNITED STATES: Washington: Pierce Co., Ohanapecosh River , Mount Rainier National Park , 17 March 1970, R.A. Haick, 1♂ ( BYU). Same site, 17 March 1970, D.S. Potter, 2♂ ( BYU). Same site, 16 March 1973, D.S. Potter, L.M. Preble, 1♂ ( BYU). Whatcom Co. , Razor Hone Creek , Hwy 542, Mount Baker National Forest , 4 March 1967, K.E. Vander Mey, 2♂, 6♀ ( BYU).

Male epiproct (n = 3). Length 718 μm, width at midlength about 147 μm, width near base 158 μm, greatest width 194 μm, subapical width at narrowest point 70 μm. Epiproct body broad basally and narrowed gradually to subapical bottleneck ( Figs. 67, 70-71 ) in dorsal and lateral aspect; apex bearing complexly lobed membranous tissue above a well formed ventral lip ( Figs. 69, 71 ). Median groove well developed, with a pair of parallel ridges extending subapically to near base of dorsobasal sclerites ( Figs. 67, 70 ). Dorsobasal sclerites short, broad and apically pointed ( Figs. 68, 72 ).

Tergal process (n = 2). A pair of hairy, low rounded hump-like structures located on tergum 9 ( Figs. 67, 71 ).

Vesicle (n = 3). Similar to S. missiona but slightly more rounded in ventral aspect.

Female subgenital plate (n = 1). Correctly associated and illustrated in figs. 13-14, by Baumann & Potter (2007). Ricker’s earlier figure for this structure is now attributed to S. missiona (Baumann & Potter 2007) . The posterior margin of the plate is truncate and scarcely projects beyond the posterior margin of sternum 8.

Larva. Unknown.

Figures

Figs. 67-72. Sasquacapnia sasquatchi, male reproductive structures, localities in Washington (67-68), and British Columbia (69-72). 67. Whatcom Co., Razor Hone Creek, male epiproct and terminal abdominal segments dorsal. 68. Whatcom Co., Razor Hone Creek, epiproct base dorsal. 69. Manning Park, Similkameen River, epiproct apex dorsolateral. 70. Manning Park, Similkameen River, epiproct dorsal. 71. Manning Park, Similkameen River epiproct lateral. 72. Manning Park, Similkameen River, epiproct base dorsal.