The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae) Author Willett, Michele R. and Bill P. Stark & Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: michele _ willett @ yahoo. com michele_willett@yahoo.com Author Stark, Bill P. Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: michele _ willett @ yahoo. com & Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: stark @ mc. edu & and Bill P. Stark & Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: michele _ willett @ yahoo. com michele_willett@yahoo.com text Illiesia 2009 5 11 108 127 http://illiesia.speciesfile.org/papers/Illiesia05-11.pdf journal article http://doi.org/10.5281/zenodo.4759290 66abbd26-0f90-4888-9851-b54dc1f135cb 1854-0392 4759290 Alloperla furcula Surdick ( Figs. 1-6 ) Alloperla furcula Surdick, 1981:349 . Holotype ♂ (United States National Museum), Upper Three Runs Creek , Aiken Co. , South Carolina Alloperla furcula : Surdick, 2004:15 . Redescription Material examined. SC: Aiken Co. , Upper Three Runs Creek , Savannah River Plant , 1 April 1977 , Herlong , Prichard , 5 ♂ ( BPS ) . Same location, 4 May 1977 , Herlong , Prichard , 10 ♂ , 4 ♀ ( BPS ) . Aiken Co. , Tinker Creek , Savannah River Plant , 1 June 1977 , Herlong , Prichard , 1 ♂ , 6 ♀ ( BPS ) . Epiproct. Length from base to fork, ca. 146 μm. Greatest pre-apical width, ca. 27 μm; apical width, ca. 53 μm. Cowl reaching well beyond apical third of epiproct tip ( Figs. 1-2 ). Dorsum of epiproct bare in apical third but basal two thirds bearing a sparse covering of appressed setae and a few long setae with freely curled tips ( Figs. 2-3, 6 ); subapical area of epiproct bearing lateral rows of long, ventrolaterally directed setae ( Figs. 3-5 ). Dorsal aspect of epiproct becoming slightly wider from basal fusion with cowl to abrupt subapical narrowing. Strong laterally directed arms of apical fork present a “fish tail” appearance ( Figs. 2-3 ).