Allocapnia aurora Ricker, 1971

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 : 57

Allocapnia aurora Ricker

( Figs. 43-48 )

Allocapnia aurora Ricker 1952:159 .

Holotype ♂ (Illinois Natural History Survey), Pigeon River , Woodrow [Haywood Co.], North Carolina

Allocapnia aurora: Ross & Ricker, 1971:46 .

Allocapnia aurora: Stark & Lacey, 2005:11 .

Allocapnia aurora: Nations et al., 2007:73 .

Material examined. Mississippi: Franklin Co., Cane Mill Branch , 29 December 1996, M.H. Alford, 1♂ ( BPS) . Tishomingo Co., Rock Creek, CR 1, 8 January 2007, B. Stark, 5♂, 1♀ ( BPS) . Tishomingo Co., Rock Quarry Creek, Tishomingo State Park , 23 December 2006, B. Stark, 3♂ ( BPS) . North Carolina: Haywood Co., Cove Creek, Hwy 1395, 27 December 1986, B.C. Kondratieff, R. F. Kirchner, 7♂, 1♀ ( CSUC) . Macon Co., Wayah Creek, LBJ Center , 5 January 1993, B. Stark, 6♂, 1♀ ( BPS) . Surry Co., North Fork Mitchell River , CR 1332, 29 January 1996, B.C. Kondratieff, R. F. Kirchner, 20♂, 1♀ ( CSUC) . Tennessee: Blount Co., Middle Prong Little River, Hwy 321, 27 February 2001, B.C. Kondratieff, R. F. Kirchner, R. E. Zuellig, 9♂, 1♀ ( CSUC) . Cooke Co., Cosby Creek, Hwy 301, 1 January 1999, M.H. Alford, 25♂, 10♀ ( BPS) . Greene Co., Horse Creek, Horse Creek Recreation Area , 25 December 1986, B.C. Kondratieff, 12♂ ( CSUC) .

Male epiproct. Apical segment of upper limb ca. 334- 370 μm long, armed over apical ca. 175-200 μm with dense patch of wave-like spikes ( Figs. 43-45 ); apical segment ca. 131-134 μm wide at base, tapered to a narrow rounded tip. Basal segment of upper limb ca. 340-380 μm long and ca. 75-88 μm wide at midlength; basal segment with a broad, shallow groove extending from base to base of apical segment. Lower limb ca. 181-187 μm wide at point of greatest width, and bearing a sparse, irregular, setal row along apical third of lateral margins.

Male tergal process. Prominent raised structure on abdominal tergum 8 ( Figs. 46-48 ). Bilobed process ca. 213-230 μm wide, bearing a U-shaped notch ca. 84 μm wide. Lobes of process and posterior face of notch bearing scale-like surface structures; anterior face of process bearing a deep transverse groove ( Fig. 47 ). In lateral aspect, lobes extend vertically at an approximate 90 ° angle from swollen base ( Fig. 46 ).

Figures

Figs. 43-48. Allocapnia aurora, Horse Creek, Greene Co., Tennessee. 43. Male terminalia, dorsal. 44. Apical segment upper limb of epiproct tip, dorsal. 45. Male terminalia, lateral. 46. 8th tergal process, lateral. 47. 8th tergal process, anterodorsal. 48. 8th tergal process, dorsal.