Hesperoperla hoguei Baumann & Stark, 1980

Stark, Bill P. & Green, Stephen, 2011, Eggs Of Western Nearctic Acroneuriinae (Plecoptera: Perlidae), Illiesia 7 (17), pp. 157-166 : 162

Hesperoperla hoguei Baumann & Stark

( Figs. 17-20 )

Hesperoperla hoguei Baumann & Stark, 1980:63 .

Holotype ♂ (Natural History Museum, Los Angeles County), Gibson Creek , Mendocino Co. , California

Material examined. California: Plumas Co., Domingo Springs, 8 miles NW Chester, Old Red Bluff Road , 21 September 2007, J. Sandberg, 2♂, 5♀ ( BPS) . Sierra Co., Big Spring, Hwy 49, 2 miles N Bassetts, 3 July 2010, P.A. Opler, 1♀ ( CSU) .

Egg. Outline oval with short, wide collar ( Fig. 17 ); collar base encircled by prominent raised ridge, sides of egg body adjacent to ridge with a series of vertical struts. Egg length ca. 400 μm, equatorial width ca. 360 μm, collar length ca. 50 μm, median width ca. 75 μm. Sides of collar with several prominent longitudinal ridges ( Fig. 19 ); collar rim flanged and irregularly incised ( Figs. 18, 20 ). Anchor biscuit shaped with moderately long pedicel; surface covered with mushroom bodies. Chorionic surface covered with shallow, hexagonal follicle cell impressions. Micropylar row subequatorial.

Figures

Figs. 17-20. Hesperoperla hoguei eggs, California, Sierra Co., Big Spring, Hwy 49, 2 miles north Bassetts. 17. Egg, lateral aspect. 18. Egg, apical aspect. 19. Collar end. 20. Collar detail, apical aspect.