Calineuria californica (Banks)

Stark, Bill P. & Green, Stephen, 2011, Eggs Of Western Nearctic Acroneuriinae (Plecoptera: Perlidae), Illiesia 7 (17), pp. 157-166 : 158

Calineuria californica (Banks)

( Figs. 1-4 )

Perla californica Banks, 1905:87 .

Holotype ♀ (Museum of Comparative Zoology), Claremont [Los Angeles Co.], California

Material examined. California: Butte Co., Heinz Creek, Hwy 70, 20 May 1982, B. Stark, D. Ziegler, 1♀ ( BPS). Sierra Co., Little Truckee River, Little Truckee Campground , 4 July 1979, B. Stark, K.W. Stewart, 18♂, 3♀ ( BPS). Montana: Lincoln Co. , Yaak River , Yaak River Campground , 19 July 1979, B. Stark, K.W. Stewart, R. W. Baumann, 2♀ ( BPS). Oregon: Union Co., Grande Ronde River, Hwy 244, 29 May 2000, B. Stark, I. Sivec, M. Zúñiga, 3♂, 4♀ ( BPS) .

Egg. Outline oval with short stalked collar, ends broadly rounded ( Fig. 1 ). Length including collar ca. 430-460 μm, equatorial width ca. 360-390 μm, collar length ca. 35-40 μm, collar width at midlength ca. 60- 68 μm. Egg body at base of collar encircled by slightly raised ridge. Sides of collar with irregular, prominent struts ( Fig. 2 ); rim flanged and irregularly incised ( Figs. 1-2 ). Anchor biscuit-shaped, surface with scattered mushroom bodies ( Fig. 3 ). Chorionic surface relatively smooth but with obscure hexagonal follicle cell impressions visible at 500X ( Figs. 2, 4 ). Micropylar row subequatorial.

Figures

Figs. 1-4. Calineuria californica eggs, Montana, Lincoln Co., Yaak River. 1. Egg, lateral aspect. 2. Collar end. 3. Collar end with anchor. 4. Anterior end.