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 biloba Newman, 1838 http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:470669 ( Figs. 13–17 ) Remarks and Distribution. Previous descriptions of the larva of this species are adequate. The first description was provided by Smith (1917) . Claassen (1931) later provided a more detailed description. This species can be reliably separated from other members of the genus based on the presence of the conspicuous abdominal projections on abdominal segments 1-8 ( Figs. 13, 14 ), the lack of a prominent acute lateral projection on the mesothorax ( Fig. 15 ), and the acute angle (APP> 55) of the anterior pronotal projection ( Figs. 15 , 17 ). The distribution of this species extends from Canadian Maritime Provinces south to Alabama ( Nelson 2000 ). Material examined. Canada , New Brunswick : Gloucester Co. , Tobusintac River , off Hwy 8, 17 June 1993 , 4♀ , 4 L, B.C. Kondratieff & R.W. Baumann ( CSUIC ) ; Restigouche Co. , Trout Brook , 5 June 1956 , ♂ , Exv., F.P . Ide & J.K. Malia ( CNC ) ; Prince Edward Island : Prince Co. , Mill River , Hwy 148 L. of Howlan , 19 June 1993 , 2 Exv , B.C. Kondratieff & R.W. Baumann ( CSUIC ) ; USA , Georgia: Gilmer Co. , Mountaintown Creek , State Hwy 2152, L 34.7500 , W 85.5544 , 9 February 2017 , 4 L, B.C. Kondratieff & C. Verdone ( CSUIC ) ; New York : Albany Co. , Catskill Creek , Rt. 145 nr. Cooksburgh , N 42.4183 , W 74.2054 , 21 May 2008 , Exv , L. Myers , B.C. Kondratieff & R.W. Baumann ( LCRI ) ; Cattaraugus Co. , Connoisarauley Creek , East Otto Rd. , Ashford , N 42.4247 , W 78.6976 , 24 June 2009 , Exv, E.L . White ( LCRI ) ; Clinton Co. , Trib. to Canfield Brook , jct. Kennedy & Bart Merrill Rd ., N 44.7216 , W 73.6687 , 14 March 2009 , L, L. Myers ( LCRI ); True Brook , Bridge on True Brook Rd ., N 44.6470 , W 73.7990 , 12 November 2009 , L, C. Binggeli & A. Grooves ( LCRI ); Essex Co. , North Branch Boquet River , Moss Rd. , Lewis , N 44.3144 , W 73.5176 , 6 April 2010 , ♀ , Exv, L . Myers , reared 25 April 2010 ( LCRI ); Roaring Brook , River Rd. nr. Lake Placid , N 44.1503 , W 73.7674 , 22 May 2007 , ♂ , Exv, L . Myers , reared 27 May 2007 ( LCRI ); West Branch Ausable River , Notch on Rt. 86 in Wilmington , 10 May 2006 , ♀ , Exv, L . Myers ( LCRI ); Franklin Co. , North Branch Saranac River , Loon Lake Rd ., N 44.5392 , W 74.0515 , 31 May 2006 , Exv, L . Myers , reared 27 May 2006 ( LCRI ); Lewis Co. , Indian River , Cemetery Rd. off Rt. 812, N 43.9753 , W 75.3701 , 5 June 2008 , Exv, L . Myers & R. Mowrey ( LCRI ); Independence River , Pine Grove Rd . N 43.7301 , W 75.3655 , 5 June 2008 , ♀ , Exv , L. Myers & R. Mowrey ( LCRI ); Saint Lawrence Co. , Trib. to Little River , Rt. 3 nr. Star Lake , N 44.1905 , W 75.0633 , 2 Exv , 5 June 2008 , L. Myers & R. Mowrey ( LCRI ); Warren Co. , Hudson River , Glen Athol Rd ., N 43.5786 , W 73.8598 , 30 June 2007 , L, L. Myers & B.C. Kondratieff ( LCRI ); Vly Brook, Rt. 8 nr. Wevertown , N 43.6529 , W 73.9228 , 2 May 2008 , ♂ , Exv, L . Myers & R. Mowrey , reared 2 June 2008 ( LCRI ); Tennessee : Carter Co. , Doe River ca. 0.5 mi. below Roan Mountain State Park Welcome Center , 12 April 1998 , ♂ , Exv, D.A. & E.L. Etnier, reared 17 April 1998 ( CSUIC ); West Virginia : Pocahontas Co. , East Fork Greenbrier River , Forest Rd. 51 off Rt. 28, 26 April 1987 , 3 L, B.C. Kondratieff & R.F. Kirchner ( CSUIC ) ; Randolph Co. , Gandy Creek , Rt. 40, 15 May 1990 , 2 L, B.C. Kondratieff, J . Welch & R.F. Kirchner ( CSUIC ) .