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Show 200 and Taxonomy Biology T4is species is closely related to £. is much paler The sample on rocks Pers. in one to is there among three and evening although lected and from late genital structures lower water daytime summer the at in in slow occur canals found in differs nymphs and streams, and elevations of some June in of is male. rivers, with Idaho, one They are Potamogeton filiformia The adults swarm late primarily the hovering type vertical motion. to the of temperature of 720F. strands flight silted flowing, fet of water. the terminatum but They have been col early September. Distribution Stenonma reesi from two terminatum). and presumably species previously reported American (1951a) is I localities have (both examined fifteen localities of a from Idaho records specimens which boreal western North the by Edmunds listed from following as seven are S. counties representa- tive. Trestle Cr., 2 mi. W. Hope, 25-VIIIBONNER Co.: Snake Riv. at Lewiston, NEZ Perce Co.: 64, (N), GFE; (+ 1). PAYETTE Co.: Payette Riv. 30-VIII-51, (N), J. N. Wilson. at jct. Ida. Hwy. #52, 9.8 mi. E. Payette, 22-IX-63, (N), Edmunds, 1951a:162); (+ 1). SLJ, (UU/UI); New Plymouth (In: GEM Co.: canal, 3 mi. W. Emmett, 22-IX-63, (N), SLJ; (+ 1). CANYON Co.: pond, 7.2 mi. E. Parma on U. S. Hwy. #20-26, Snake BINGHAM Co.: Ibid.). 22.;..IX-63, (N), SLJ; Nampa (In: Bruneau OWYHEE Co.: Riv. at Blackfoot, 7-VIII-6J; (AFE. Riv. at jct. Ida. Hwy. #51, 1 mi. W. Bruneau, 30-VIII-65, (A/N), SLJ and JWJ, (UU/UI); (+ 1). Records.- |
