Allocapnia rickeri Frison

Stark, Bill P. & Kondratieff, Boris C., 2012, Epiproct And Dorsal Process Structure In The Allocapnia Forbesi Frison, A. Pygmaea (Burmeister), And A. Rickeri Frison Species Groups (Plecoptera: Capniidae), And Inclusion Of A. Minima (Newport) In A New Species Group, Illiesia 8 (5), pp. 45-77 : 69-72

Allocapnia rickeri Frison

( Figs. 97-102 )

Allocapnia rickeri Frison 1942:269 .

Holotype ♂ (Illinois Natural History Survey), Big Grand Pierre River , Golconda [Pope Co.], Illinois

Allocapnia rickeri: Ross & Ricker, 1971:41 .

Allocapnia rickeri: Nations et al., 2007:82 .

Material examined. Alabama: Limestone Co., East Fork Anderson Creek, Anderson , 5 January 2001, B. Stark, C.G. Simpson, I. Nazir, 7♂ ( BPS) . Arkansas: Montgomery Co., 2 miles E Hurricane Grove, Hwy 270, 28 December 2010, B. Stark, 2♂ ( BPS) . Van Buren Co., Choctaw Crk, Hwy 65, 4 January 1997, B. Stark, S. Tucker, 42♂, 3♀ ( BPS) . Van Buren Co., Archey Creek, Rt 166, 3 January 1997, B. Stark, S. Tucker, 23♂, 4♀ ( BPS) . Mississippi: Tishomingo Co., Clear Creek , Hwy 172, 10 February 2007, B. Stark, 40♂, 3♀ ( BPS) . North Carolina: Cabarras Co., East Concord , Barringer Creek , Hwy 49, 4 January 1998, M.H. Alford, 8♂ ( BPS) . Orange Co., Eno River, Pleasant Green Road , 18 January 1998, M.H. Alford, 2♂, ( BPS) . Ohio: Scioto Co., Turkey Creek , Hwy 52 , 26 February 2005, M.H. Alford, 2♂ ( BPS) . Oklahoma: Latimer Co., tributary Brazil Creek , 1 mile N Cedar Cemetery, 28 December 2006, B. Stark, J. Stark, 23♂, 2♀ ( BPS) . Tennessee: Bedford Co., Ashland Branch Sugar Creek , Bluestock Road , 23 February 1999, B.C. Kondratieff, R. F. Kirchner, 8♂ ( CSUC) . Wayne Co., Eagle Creek, Hwy 114, 14 March 2010, B. Stark, 5♂ ( BPS) .

Male epiproct. Apical segment of upper limb ca. 226 μm long, and armed on the apical ca. 173 μm with dense patch of wave-like spikes ( Figs. 97-101 ); apical segment ca. 132 μm wide at base and gradually narrowed to bluntly rounded tip. Basal segment of upper limb ca. 350 μm long and ca. 111 μm wide near midlength; basal segment bears a wide, shallow, longitudinal groove which extends to base of apical segment. Lower limb hidden beneath apical segment of upper limb.

Male tergal process. Prominent raised structures on abdominal tergum 8 ( Figs. 100-102 ). Process of tergum 8 bilobed, ca. 175 μm wide, and the lobes separated by a ca. 85 μm notch. Lobes deeply divided and covered with scale-like structures.

Figures

Figs. 97-102. Allocapnia rickeri, Turkey Creek, Scioto Co., Ohio. 97. Male terminalia, dorsal. 98. Apical segment upper limb of epiproct tip, dorsal. 99. Male terminalia, lateral. 100. 8th tergal process and epiproct tip, lateral. 101. 8th tergal process and epiproct tip, dorsal. 102. 8th tergal process and epiproct tip, anterodorsal.