The Winter Stoneflies (Plecoptera: Capniidae) Of Mississippi Author Nations, Tina M. Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: stark @ mc. edu stark@mc.edu Author Stark, Bill P. Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: stark @ mc. edu stark@mc.edu Author Hicks, Matthew B. United States Geological Survey, Mississippi Water Science Center, 308 South Airport Road, Jackson, Mississippi 39208 E-mail: mhicks @ usgs. gov mhicks@usgs.gov text Illiesia 2007 2007-08-20 3 9 70 94 journal article http://doi.org/10.5281/zenodo.4759885 a6705bd1-f344-40ce-a77a-2d2c4fa2f344 1854-0392 4759885 Allocapnia rickeri Frison Allocapnia rickeri Frison,1942 . Holotype male, Big Grand Pierre River , Golconda , Pope County , Illinois . Distribution. AL, AR, DC, DE, GA, IA, IN, KS, KY, MD, MN, MO, MS, NC, NJ, OH, OK, ON, PA, TN, VA, WI, WV ( Stark & Baumann 2006 ). Mississippi populations have been reported only in Tishomingo County ( Stark 1979 ). Mississippi collection data. ( Fig. 31 ). Tishomingo Co. , Clear Creek , Hwy 72, 4 miles East of Iuka , 34 ° 46’ 40.4” N , 88 ° 08’ 46.6” W , 10 February 1979 , B. Stark , P. Hartfield and C. Cooper , 2 ♀ ; Same location, 8 January 2007 , B. Stark , 43 ♂ , 6 ♀ ; Tributary of Bear Creek , Tishomingo State Park , 10 February 1979 , B. Stark , P. Lago , P. Hartfield and C. Cooper , 8 ♂ , 5 ♀ ; Tishomingo State Park , 5 February 1992 , M. Caterino , 1 ♂ ( University of Mississippi ); Same location, 16 January 1981 , J. Goddard , 1 ♀ ( University of Mississippi ) ; Samelocation , 8 February 1986 , S. Testa , 1 ♀ ( University of Mississippi ) . Allocapnia rickeri Fig. 31. Distribution of Allocapnia rickeri in Mississippi. Figs. 32‐37. Allocapnia rickeri , Tishomingo Co., Clear Creek, Hwy 172. 32. Epiproct, dorsal, 33. Epiproct, lateral, 34. Epiproct tip, 35. Detail epiproct tip, 36. Maletergum 8 and dorsalprocess, 37. Female abdominalsterna 7‐9. Male epiproct. Epiproctupper limb long, somewhat spear‐ shaped in dorsal aspect, with no basal angulation ( Fig. 32 ), and the tip bears a small, swollen sectioncovered with shortridges and ashort mesal groove( Figs. 33‐34 ). Posteriorto groovedapical section, a long, low, median ridgeextends formost of upper limb length ( Fig. 32 ), and a broad, shallow, median trough extends forward from base. In lateral aspect, short apical section reflexed slightly downward ( Fig. 33 ) and some ridges have obscure undulations similar to those of A. aurora ( Fig. 35 ). Maletergal process. The tergal processrises from the 8 th abdominal segment as two knobs covered with scale‐ like tubercles; knobs widely separatedbynotch which extends completelyto base of process ( Fig.36 ). In lateral aspect, anterior margin of process projects somewhat higher than posterior margin. Female subgenital plate. Abdominal sterna 7 and 8 joined bybridge scleritebut bridgenarrowlynotched on midlateral margins by membrane ( Figs. 37 , 63 ). Apex of subgenital plate truncate and scarcely projecting beyond lateral margins of sternum 8.