Allocapnia polemistis Ross and Ricker

Nations, Tina M., Stark, Bill P. & Hicks, Matthew B., 2007, The Winter Stoneflies (Plecoptera: Capniidae) Of Mississippi, Illiesia 3 (9), pp. 70-94 : 80-81

Allocapnia polemistis Ross and Ricker

Allocapnia polemistis Ross and Ricker. 1971 . Holotype male, Alabama, Walker County, 10 miles NE of Jasper Allocapnia polemistis Stark et al. 2000 . SEM of male

Distribution. AL, MS ( Stark & Baumann 2006). Mississippi populations have been reported in Tishomingo County ( Stark et al. 2000).

Mississippi collection data. ( Fig. 24 ). Tishomingo Co., Tishomingo State Park, 5 February 1992, M. Caterino, 1 ♂, 2 ♀ ( University of Mississippi); Rock Quarry Creek , Tishomingo State Park , 34 ° 36’ 73.4” N, 88 ° 12’ 25.1” W, 4 January 2000, B. Stark and M. Alford, 3 ♂; Samelocation, 28 December 2005, T. Nations and B. Stark, 11 ♂, 6 ♀; Same location, 23 December 2006, B. Stark, 7 ♂; Samelocation, 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, 1 ♂. Male epiproct. Epiproct angled near midlength, paddle shaped in dorsal aspect, flattened in lateral aspect andbearing a rounded apex ( Fig. 26 ). Dorsum of upper limb covered with short, spines in a rather dense patch over apical half ( Figs. 25, 27 ), and divided mesally by a shallow groove. Dorsal limb thin in lateral aspect, throughoutlength of apical half ( Fig. 26 ).

Male tergal process. Tergum 8 process rests on a large oval ridge and bears a thin, compressed dorsal crest. Anterior face of process bent abruptly near apex, and anterodorsal surface devoid of scale‐ like tubercles ( Figs.28‐29 ).

Allocapnia polemistis

Female subgenital plate. Abdominal sterna 7 and 8 completely separated by membrane. Posterior margin of subgenitalplate usually withoutprojecting mesal lobe; anterior margin of sternum 8 bearsa pair of small basolateral lobes ( Figs. 30 , 62 ).

Figures

Fig. 24. Distribution of Allocapnia polemistis in Mississippi.

Figs. 25‐30. Allocapnia polemistis, Tishomingo Co., Rock Quarry Creek, Tishomingo State Park. 25. Epiproct, dorsal, 26. Epiproct, lateral, 27. Epiproct tip, 28. Male tergum 8 and dorsal process, 29. Male tergum 8, lateral aspect, 30. Female abdominal sterna 7‐9.

Figs. 59‐62. Female terminalia. 59. Allocapnia aurora, 60. Allocapnia granulata, 61. Allocapnia mystica, 62. Allocapnia polemistis. fl = fusion line; sgp = subgenital plate.