Pteronarcys californica Newport, 1848

Myers, L. W. & Kondratieff, B. C., 2017, Larvae Of North American Species Of Pteronarcys (Plecoptera: Pteronarcyidae), Illiesia 13 (16), pp. 192-224 : 204-205

Pteronarcys californica Newport, 1848

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:470665

( Figs. 18–23 )

Remarks and Distribution. Previous larval descriptions and illustrations are available for this species ( Smith 1917, Claassen 1931, McCafferty 1981). It can be separated from larvae of other Pteronarcys based on the absence of lateral abdominal projections ( Figs. 18 , 23 ), welldeveloped, acutely pointed pronotal projections ( Figs. 20 , 23 ), pointed triangular wing pads ( Figs. 21 , 23 ), and a pointed, semi-lunate, conical supraantennal process ( Figs. 19 , 22 ). This widespread and often abundant species is distributed throughout the Canadian Rockies from Alaska south to Arizona and west to the Coastal Ranges of far western North America ( Jewett 1959, Baumann et al. 1977, Stewart & Oswood 2006).

Material Examined. Canada, British Columbia: Summerland , 12 May 1959, ♀, Exv, R.E. Leech ( CNC) ; USA, Colorado: Larimer Co., Big Thompson River, Viestenz Smith Park, 9 June 2005, ♀, 3 Exv, R. Thorp ( CSUIC) ; Big Thompson River , 1 mile N Drake, 7 October 2005, 3 L, L. Myers ( LCRI) ; Poudre River, Fort Collins, Lyons Park , 22 May 1987, ♀, Exv , B.C. Kondratieff ( CSUIC) ; Grand Co., Colorado River , US 40 below Byers Canyon, 4L, 28 April 2010, B. Heinold ( CSUIC) ; Oregon: Clackamas Co., Salmon River , submerged wood, 1 mi. W of Zig Zag, 27 December 1995, L, R. Durfee ( CSUIC) .

Figures

Fig. 18-21. Pteronarcys californica – 18. Abdomen dorsal; Colorado: Larimer Co., Poudre River. 19. Supraantennal process dorsal view; Colorado: Larimer Co., Poudre River. 20. Head and pronotum dorsal view; Colorado: Larimer Co., Poudre River. 21. Head and thorax dorsal view; Colorado: Larimer Co., Poudre River.

Fig. 22. Pteronarcys californica. Supra-antennal process; Colorado, Grand Co., Colorado River.

Fig. 23. Pteronarcys californica. Larval habitus; Colorado, Grand Co., Colorado River.