Alloperla prognoides Surdick & Stark

Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), Illiesia 5 (11), pp. 108-127 : 117

Alloperla prognoides Surdick & Stark

( Figs. 37-42 )

Alloperla furcula: Stark & Harris, 1986:177 . Not Surdick, 1981.

Alloperla prognoides Surdick & Stark in Surdick, 2004:20.

Holotype ♂ (United States National Museum), Little River , Hwy 59, Baldwin Co., Alabama

Material examined. AL: Autauga Co., Autauga Creek , Hwy 20, 31 May 1985, S.C. Harris, paratype ♂ ( BPS). Baldwin Co. , Little River, Hwy 59, 27 April 1985, S.C. Harris, paratype ♂ ( BPS) .

Epiproct. Length from base to fork, ca. 120 μm. Greatest pre-apical width, ca. 46 μm; apical width, ca. 65 μm. Cowl reaching almost to tips of epiproct ( Figs. 37-38, 40 ). Epiproct bare except for small basal patch ( Fig. 42 ), and ventrolaterally directed rows of long lateral setae near apex ( Figs. 38-39, 40 ). Width greatest near base, and gradually narrowed to base of fork; arms of fork long and thin and directed downward ( Figs. 39, 40-41 ).

Figures

Figs. 37-42. Alloperla prognoides epiproct structures, Autauga Creek, Autauga Co., AL. 37. Male terminalia, dorsal aspect. 38. Epiproct and cowl, dorsal aspect. 39. Apical half of epiproct, dorsal aspect. 40. Epiproct and cowl, lateral aspect. 41. Epiproct apex, frontal aspect. 42. Detail of basal epiproct surface.