Larvae Of North American Species Of Pteronarcys (Plecoptera: Pteronarcyidae) Author Myers, L. W. Lake Champlain Research Institute, SUNY Plattsburgh, Plattsburgh, NY 12901, U. S. A. E-mail: myerslw @ plattsburgh. edu myerslw@plattsburgh.edu Author Kondratieff, B. C. Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado, 80523, U. S. A. E-mail: boris. kondratieff @ colostate. edu boris.kondratieff@colostate.edu text Illiesia 2017 13 16 192 224 journal article http://doi.org/10.5281/zenodo.4752933 5cb57102-4f5e-4d1a-90ce-cbe06dc4b57d 1854-0392 4752933 68D355B3-CD8A-4699-AC4E-94527D18FE24 Pteronarcys comstocki Smith, 1917 http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:470670 ( Figs. 24–27 ) Remarks and Distribution. This is the most infrequently encountered member of this genus. Scattered records are available from New Brunswick , Maine , New York , Pennsylvania , Virginia , West Virginia , and Kentucky ( Nelson 2000 ). Larvae of P. comstocki are easily separated based on the well-developed curved abdominal projections on AB1-8 ( Fig. 25 ), pointed, semi-lunate supra-antennal process ( Fig. 26 ), acute, well developed pronotal projections, and the presence of a sharply pointed process on the mesothorax ( Fig. 24 , Fig. 27 ). Fig. 24-26. Pteronarcys comstocki . 24. Pronotum and thorax dorsal view; New York: Essex Co., Tributary of Ausable River. 25. Abdomen dorsal view; New York: Essex Co., Tributary of Ausable River. 26. Supraantennal process; New York: Essex Co., Tributary of Ausable River. Fig. 27. Pteronarcys comstocki . Larval habitus; Virginia: Highland Co., Back Creek. Material Examined. USA , New York : Essex Co. , Boquet River , Rt. 9N South of Elizabethtown , N 44.2125 , W 73.5839 , 23 May 2008 , 2 Exv, L . Myers, B.C . Kondratieff & R.W. Baumann ( LCRI ) ; East Branch Ausable River , Andrus Rd. Upper Jay , N 44.3139 , W 73.7856 , 25 June 2008 , Exv, L . Myers ( CSUIC ) ; East Branch Ausable River , Rt. 9 Ausable Forks , N 44.4379 , W 73.6795 , 8 April 2015 , 3 L, L. Myers ( LCRI ) ; Keene NY , Tributary of Sable River , 20 June 1941 , Exv , T.H. Frison & H.H. Ross ( CNC ) ; Vermont : Windsor Co. , White River , Crossing Rt. 100 S. Quarry Hill Rd. , N 43.8976 , W 72.8217 , 2 April 2014 , L, L. Myers ( LCRI ) ; Virginia : Highland Co. , Back Creek , CR 600/603 Bridge , 29 December 1981 , ♂ , ♀ , 2 Exv , reared 4 April 1982 , B.C. Kondratieff & R.F. Kirchner ( CSUIC ) .