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 aurora Ricker Allocapnia aurora Ricker, 1952 . Holotype male, Pigeon River , Woodrow , North Carolina Allocapnia aurora : Alford, 1998 . SEM of male Allocapnia aurora : Stark & Lacey, 2005 . SEM of maleand nymph Distribution. AL, DC, GA, MD, MS, NC, PA, SC, TN, VA ( Stark & Baumann 2006 ). Mississippipopulations have been reported in Amite, Clarke, Franklin, Lauderdale and Tishomingo counties ( Stark 1979 ; Alford 1998 ; Stark & Lacey 2005 ) and in this paper new records are given for Kemper County and Prentiss County. The base distribution lies along the Alabama line from Tishomingo Co. to Clarke Co. with an apparent small disjunct population in the Homochitto National Forest of southwest Mississippi ( Fig. 3 ); only three specimens have been taken from the disjunct area. Allocapnia aurora Fig. 3. Distribution of Allocapnia aurora in Mississippi. Mississippi collection data. ( Fig. 3 ). Amite Co. , Foster Creek at Hwy 33, 26 December 1997 , M. Alford , 1 ♂ . Clarke Co. , Little Okatuppa Creek , Hwy 18, 29 December 1999 , B. Stark , 1 ♀ ; Samelocation , 7 December 2002 , B. Stark , 2 ♂ ; Samelocation , 18 December 2002 , B. Stark and J. Lacey , 9 ♂ , 1 ♀ ; Same location, 18 January 2003 , B. Stark , W. Hawkins and S. Cope , 1 ♂ ; Samelocation , 8 January 2005 , B. Stark , 1 ♂ . Franklin Co. , Cane Mill Branch , 29 December 1996 , M. Alford , 1 ♂ ; Samelocation , 26 December 1997 , M. Alford , 1 ♂ ; Dry Creek at USFS Road 145, 5 December 1997 , M. Alford , 1 ♂ . Kemper Co. , Straight Creek , Hwy 39, 14 December 2006 , B. Stark and M. Hicks , 2 ♂ , 1 ♀ ; Wahalak Creek , Holly Haley Road , 32 ° 51’ 92.2” N, 88 ° 38’ 12.1” W , 14 December 2006 , B. Stark and M. Hicks , 2 ♂ . Lauderdale Co. , Cow Creek, I‐20, 12 January 1979 , B. Stark and P. Hartfield , 3 ♂ , 1 ♀ ; Cow Creek, Cow Creek Road, 32 ° 22’ 75.0” N, 88 ° 50’ 36.8” W , 12 January 2007 , B. Stark, 1 ♂ ; Tallahatta Creek , I‐20, 12 January 1979 , B. Stark and P. Hartfield , 1 ♂ . Prentiss Co. , Big Brown Creek , Hwy 364, 34 ° 40’ 22.8” N , 88 ° 25’ 79.9” W, 23 December 2006 , B. Stark, 1 ♀ . Tishomingo Co. , Clear Creek , 4 miles E Iuka , Hwy 72, 5 February 1977 , B. Stark , 1 ♂ , 4 ♀ ; Rock Quarry Creek , Tishomingo State Park , 34 ° 36’ 73.4” N, 88 ° 12’, 25.1” W, 28 December 2005 , T . Nations and B. Stark , 1 ♀ ; Same location 23 December 2006 , B. Stark , 3 ♂ ; Samelocation , 8 January 2007 , B. Stark , 1 ♂ ; Tishomingo State Park , 16 January 1981 , J. Goddard , 2 ♀ ( University of Mississippi ); Samelocation , 10 February 1979 , M.O. Mann , 1 ♀ ( University of Mississippi ); Jourdan Creek , CR 16, 8 January 2007 , B. Stark , 2 ♂ ; Rock Creek , CR 1, 34 ° 29’ 93.2” N, 88 ° 18’ 87.7” W, 8 January 2007 , B. Stark , 5 ♂ , 1 ♀ Male epiproct. Epiproct long, slender, and spear shaped in dorsal aspect (Fig. 4), armed in the apical fourth with smooth, undulant ridges (Figs. 4‐6), but smooth in basalthree quarters. A prominent, narrow, longitudinal groove divides most of theapical half in dorsal aspect, and a broad, shallowtrough is present on the basal third. In lateral aspect, apex slightly inflated to a terminal acute tip; lower limb apex not visible in dorsal aspect but in lateral aspect it bends sharply ventrad near dorsal limb tip (Fig. 5), and lower limb slightlywider in dorsalaspect than upper limb from base to beyond midlength (Fig. 4). Figs. 4‐9 Allocapnia aurora , Tishomingo Co., Rock Quarry Creek, Tishomingo State Park. 4. Epiproct, dorsal, 5. Epiproct, lateral, 6. Epiproct tip, 7. Male tergum 8 and dorsal process, 8. Male tergum 8, lateral aspect, 9. Female abdominal sterna 7‐9; dp = dorsal process; dl = dorsal epiproct limb; vl= ventral epiproct limb. Male tergal process. Tergum 8 bears a single process with moderately deep notch (Figs.5, 7), narrow and upright in lateral aspect (Fig.8); notch slightly wider than tall, oval knobs at each end of process; knobs covered over mostof surface with scale‐ like tubercles (Figs.7‐8). Female subgenital plate. The truncate hind margin of sternum 8 does not projectbeyond lateral margins of segment and mesal sclerite on sternum 8 completely fused with mesal sclerite on sternum 7; fusion point between segments 7‐8 marked by dark transverse line ( Fig. 59 ) formed from infolding of bridge sclerite beneath segment 7 (Fig. 9).