Perlesta golconda DeWalt & Stark, 2004

Grubbs, Scott A. & DeWalt, R. Edward, 2008, Taxonomic And Distributional Notes On Perlesta Teaysia, P. Golconda, And P. Shawnee (Plecoptera: Perlidae), Illiesia 4 (14), pp. 143-149 : 146-147

Perlesta golconda DeWalt & Stark

( Figs. 16–17 )

Perlesta golconda DeWalt et al., 1998:315 .

Holotype ♂ (Illinois Natural History Survey). Ohio River, Pope Co., Illinois, U.S.A.

Perlesta golconda Stark, 2004:93

Material examined. U.S.A., ILLINOIS: Carroll Co., Savanna , at light, 20 July 1927, T. H. Frison & R. D. Glasgow, 1 ♂, 3 ♀ ( INHS) .

Remarks. This species was described from the Ohio River in southeastern Illinois ( DeWalt et al., 1998). The known distribution of this species has since been expanded to Iowa ( Stark et al., 2008), Missouri ( Stark, 2004) and Nebraska ( DeWalt et al., 2001). Females from the original type series possessed eggs that were too poorly sclerotized to permit SEM work and because only line illustrations were presented, fine details of the collar and chorion could be interpreted solely from the written description ( DeWalt et al., 1998; Fig. 8 ). Material stored at INHS that has been subsequently identified as P. golconda included gravid females, allowing for SEM and the first highresolution images of the eggs of this species. Although the eggs depicted here were too fragile to clean sufficiently, they adhere easily to the original description in DeWalt et al. (1998). All eggs examined were near-symmetrically oval, the chorion was smooth to slightly granular, and the collar was raised only slightly above the anterior surface of the egg ( Figs. 16–17 ).

Figures

Figs. 16–17. Perlesta golconda egg SEM micrographs, U.S.A., IL, Carroll Co., Savanna, 20 July 1927. 16. Entire egg, 200X, 17. Anterior pole, 1500X.

Figs. 1–15. Perlesta teaysia egg SEM micrographs. 1–3: U.S.A., IL, Vermilion Co., Forest Glen Forest Preserve, 4 August 1977, 4–6: U.S.A., IN, Jackson Co., Guthrie Creek, 18 July 2000, 7–9: U.S.A., KY, Warren Co., Doty Creek, 6 July 2003, 10–12: U.S.A., MD, Allegany Co., Flintstone Creek, 4 July 1996, 13–15: U.S.A., VA, Wythe Co., Reed Creek, 24 July 2008). 1, 4, 7, 10, 13. Entire egg, 200X; 2, 5, 8, 11, 14. Anterior pole, 1000X; 3, 6, 9, 12, 15. Chorionic sculpturing, 2000X.