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Show 131 Oviposition of Eaton with the deposited, late color the eggs Adults October. than the The females is hatching have similar to several minutes been collected spring succeeding that brood is summer from of C. after montanus being to early April usually much in darker broods. Distribution Callibaetis American species examined an austral western North previously unreported specimens localities nigritus is from Idaho. from fourteen counties of which the following are and I have twenty-eight representative. LATAH Co.: Records.ADA Troy, 27-IV-5l, (A), WFB, (UI). ELMORE Co.: Go.: Canal, 5 mi. W. Boise, 22-IX-63, (N), SLJ. Glenns Ferry, l2-VII-64, (A), w. L. and J. G. Peters, (UI); BUTTE Co.: (+ 2). 3 mi. W. Howe, 23-VI-65, (A), \NFB, (UI); Snake Riv. at jct. Ida. Hwy. #51, 5 mi. OWYHEE Co.: (+ 1). GOODING Co.: N.E. Bruneau, 30-VIII-65, (A), SLJ and JWJ. Riley Cr., 4 mi. S. Hagerman, l2-VI-65, (A), SDS, (UI). 10 mi. S. Shoshone, 3-IX-44, (A), GFE; (+ 1). LINCOLN Co.: 6 mi. N.E. Jerome, 5-IX-44, (A), GFE; (+ 2). JEROME Co.: TWIN FALLS Co.: Rogerso, 11 mi. E. Twin Falls, 20-VII-52, CASSIA Co.: Burley, 23-VII-64, (A), SLJ, (A), WFB, (UI). BANNOCK Co.: Arimo, 7-IX-44, (A), GFEj PSL, and FDI; (+ 5). Blackfoot Riv. at jct. Ida. Hwy. #34, CARIBOU Co.: (+'2). 5VIII-63,' (N), RDA. FRANKLIN Co.: Worm Cr., nr. Preston, 14-VIII-54, (N), ARG; (+ 1). BEAR LAKE Co.: Ovid, 5-VIII-63, (N), RDA, (UI). Genus The tinguish ring in Centroptilum following combinations this genus Idaho: from Adults. Eaton of 1869 characters serve genera of Baetidae all other (1) Hind wings to dis occur present although |
