Sierracapnia mono ( Nelson and Baumann 1987 ), 2015

Bottorff, Richard L. & Baumann, Richard W., 2015, Sierracapnia, A New Genus Of Capniidae (Plecoptera) From Western North America, Illiesia 11 (9), pp. 104-125 : 111-112

Sierracapnia mono ( Nelson and Baumann 1987)

( Figs. 9-12 )

Sierracapnia mono ( Nelson and Baumann 1987):493 .

Holotype ♂ ( USNM). Type locality: California, Mono Co., Slinkard Creek, 2 miles north of Topaz.

Material Examined. USA, California: Mono Co., Baxter Canyon, Glass Mountains, 9-II-1996, M. Myers, 1♂ ( BYUC) ; Convict Creek, 7 mi ESE Mammoth, 7600’, 8-II-1987, D. Giuliani, 1♂ ( BYUC) ; Glass Creek, 1 mi W Crestview, 7600’, 4- IV-1990, D. Giuliani, 1♂ ( BYUC) ; Laurel Creek, 4 mi ESE Mammoth, 7300’, 9-II-1987, D. Giuliani, 46♂, 30♀ ( BYUC) ; Laurel Creek, 1.5 mi S 4 mi E Mammoth, 7300’, 23-II-1988, D. Giuliani, 9♂, 20♀ ( BYUC) ; creek, 7 mi NW Lee Vining, 7400’, 2-III- 1987, D. Giuliani, 21♂, 33♀ ( BYUC) ; Lee Vining Creek, below Poole Power Station, 8-IV-1986, R.W. & J.W. Baumann, 1♀ ( BYUC) ; Parker Creek, 5.5 mi S Lee Vining, 7200’, 23-II-1988, D. Giuliani, 59♂, 56♀ ( BYUC) ; Slinkard Creek, 2 miles north of Topaz, 5-XI-1983, W.D. Shepard, 9♂, 4♀ ( USNM, BYUC) ; unnamed spring, 18 miles north of Bridgeport, 19-I-1983, W.D. Shepard, 1♀ ( BYUC) ; Virginia Creek, 8,200’, 5-IV-1985, D. Giuliani, 9♂, 5♀ ( BYUC) ; Virginia Creek, Hwy 395, 0.5 mi W Conway Summit, 15-IV-1998, C.R. Nelson, B.P. Stark & I. Sivec, 1♂, 1♀ ( BYUC) . Nevada: Carson City Co., Clear Creek, SW Carson City, N 39.11467° W 119.79979°, 5019’, 8-I-2013, R.L. Bottorff, 9♂, 6♀ ( RLBC) ; Clear Creek, SW Carson City, N 39.11467° W 119.79979°, 5019’, 31-I-2013, R.L. Bottorff, 8♂, 3♀ ( RLBC) ; Secret Harbor Creek, near Lake Tahoe, N 39.14009° W 119.9242°, 6877’, 10-III-2013, R.L. Bottorff, 13♂, 8♀ ( RLBC) . Douglas Co., Clear Creek, W Carson City, 12-I-1992, D. Giuliani, 8♂, 8♀ ( BYUC) ; Mott Canyon Creek, Mottsville Cemetery, N 38.93139° W 119.83827°, 4769’, 31-I- 2013, R.L. Bottorff, 1♂ ( RLBC) ; Mott Canyon Creek, Mottsville Cemetery, N 38.93139° W 119.83827°, 4769’, 26-II-2013, R.L. Bottorff, 5♂, 6♀ ( RLBC) ; unnamed creek, Zephyr Cove, Lake Tahoe, N 39.01409° W 119.94947°, 6244’, 31-I-2013, R.L. Bottorff, 5♂, 1♀ ( RLBC) ; unnamed creek, Zephyr Cove County Park, Lake Tahoe, N 39.00822° W 119.94282°, 6281’, 26-II-2013, R.L. Bottorff, 14♂, 6♀ ( RLBC) . Washoe Co., Incline Creek, Incline Village, N 39.23945° W 119.94514°, 6248’, 10-III-2013, R.L. Bottorff, 2♂ ( RLBC) .

Male. Tergum 7 knob wide and usually divided into two lobes, knob width 30-40% of segment 7 width ( Figs. 9, 11 ). Epiproct in dorsal view with sinuous lateral edges, maximum width 16-23% of epiproct length ( Fig. 9 ); maximum width occurs near mid epiproct; apex narrow and pointed; posterior third of epiproct with narrow ventrolateral flange; dorsal membrane light colored. Epiproct in lateral view slightly convex dorsally, deeply keeled ventrally; maximum depth 32-35% of length; maximum depth occurs anterior of mid epiproct; neck thick ( Fig. 10 ). Epiproct dorsolateral horns closely appressed to main dorsal surface; horn length 16-20% epiproct length; horn tips extend forward to 67-75% epiproct length ( Figs. 9, 10 ; Table 1 ).

Female. Subgenital plate heavily sclerotized and dark; plate covers entire width of sternum 8 from posterior to anterior edge; sclerotization extends onto sternum 7 (Fig. 232, Nelson and Baumann 1989).

Distribution. Sierracapnia mono occurs in a northsouth band that includes the Carson Range at Lake Tahoe in western Nevada and the east side of the central and southern Sierra Nevada ( Fig. 39 ), at least as far south as Convict Lake, California ( Nelson and Giuliani 2001).

Figures

Figs. 9-12. Sierracapnia mono. Male: 9. Zephyr Cove, Nevada. Genitalia, dorsal, epiproct and knob on tergum 7. 10. Zephyr Cove, Nevada. Genitalia, lateral, epiproct and knobs on tergum 9. 11. Slinkard Creek, California. Knob on tergum 7, anterior. 12. Clear Creek, Nevada. Tip of paraprocts and fusion plate showing tube, dorsal, terminal.

Fig. 39. Distributional map of Sierracapnia spp.: barberi (red), hornigi (purple), mono (dark green), palomar (light blue), washoe (yellow), and yosemite (dark blue).