Pteronarcys princeps Banks, 1907

Myers, L. W. & Kondratieff, B. C., 2017, Larvae Of North American Species Of Pteronarcys (Plecoptera: Pteronarcyidae), Illiesia 13 (16), pp. 192-224 : 214

Pteronarcys princeps Banks, 1907

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:470666

( Figs. 45–49 )

Remarks and Distribution. This species is common in the Pacific Northwest with scattered reports from British Columbia, Idaho, Nevada, and Utah ( Jewett 1959, Baumann et al. 1977, Stewart & Oswood 2006). It is sympatric with P. californica , but can be differentiated by the anterolateral orientation of the APP ( Figs. 47 , 49 ) and the semi-circular ridge shaped supra-antennal plate ( Figs. 46 , 48 ).

Material Examined. Canada, British Columbia: Cultus Lake, 13 March 1937, 3 L, W.E. Ricker ( CNC); Hatchery Creek, Cultus Lake BC, 7 May 1937, ♀, Exv, W.E. Ricker ( CNC) . USA, California: Butte Co., Butte Creek, Humboldt Rd. , above Colby Creek , N 40.1138 W 121.4952, 25 May 2014, 2♂, 3L , B.C. Kondratieff & C. Verdone ( CSUIC) ; Butte Creek, Humboldt Rd. NW of Butte Meadows, N 40.0016, W 121.5364, 25 May 2014, 4♂, Exv, B.C. Kondratieff & C. Verdone ( CSUIC) ; Nevada Co., Rock Creek, North Bloomfield Rd. , N 39.3024, W 120.9785, 24 May 2014, 4♀, Exv, B.C. Kondratieff & C. Verdone ( CSUIC) ; Siskiyou Co., Big Springs Creek, Mt. Shasta City Park , N 41.3281, W 122.3269, 23 May 2014, 6♂, 2♀, 2L, Exv, B.C. Kondratieff & C. Verdone ( CSUIC) ; Oregon: Clackamas Co., Salmon River , submerged wood, 1 mi. W of Zig Zag, 27 December 1995, L, R. Durfee ( CSUIC) .

Figures

Fig. 45-47. Pteronarcys princeps. 45. Abdomen dorsal view; California: Butte Co., Butte Creek. 46. Supraantennal process; California: Butte Co., Butte Creek. 47. Head and pronotum dorsal view; California: Butte Co., Butte Creek.

Fig. 48. Pteronarcys princeps. Supra-antennal process; California: Siskiyou Co., Big Springs Creek.

Fig. 49. Pteronarcys princeps - Larval habitus; California: Siskiyou Co., Big Springs Creek.