310 rnofFFurxcs of thf xatioxai. Mrsrv^t, vouxx. 



front iiiarjriii Hiibtriiiicate, hind !iiar^iii <)l»tiisaiij;iil:it«'; prozoiia l<>n;;i- 

 tinliiial {m:iU') or(iuji(lr;ite (Icmah'), niilya little loiijjer than th<* densely 

 punctate nieta/.ona. I'rosternal s]une rather lonj?, ere<*t, snhpyranndal, 

 not very blunt, its anterior face vertical; interspace between niesoster- 

 iial lobes fully twice as long as broad (nnile) or a little lon;ier than 

 bro;nl (leniale). Tejjinina surpassing; a little the hind femora, rather 

 broad, taperinjjf considerably in the apical hall', browinsh fuscous, with 

 a row of ibisky quadrate s[)ots down the proximal half of the discoidal 

 area, but sometimes wholly imma<'ulate. Winj^s hyaline, glistenin^^, 

 the veins in the apical an<l anterior re;;:ions fuscous. Le^s yeUow, 

 tinged with dull orange, the hin<l femora fjiintly bifasciate above 

 interiuilly, and with the upper e\teri(»r carina black; hind tibiae 

 normally glaucous, paler and dull at the apex, sometimes uniform 

 red, the spines pallid, black apically, ten to eleven, rarely twelve, 

 in number in the outer series. Extrenuty of male ab(b)men distinctly 

 clavate, but little recurved; supraanal plate triangular, witli thickened 

 feebly upraised edges and a coarse percurrent nietlian suh'us; furcula 

 consisting of a pair of short, <livergent, flattened, tapering, often un- 

 equally tai)ering fingers, extending over the supraanal i>late by hardly 

 more than the length of the last dorsal segment; cerci rather snuUl, 

 strongly compressed, bent inward, nearly equal throughout but smallest 

 mesially, truncate at tip; subgenital plate moderately broad, sube(iual, 

 longer than broad, with nearly even lateral margins, entire and sub- 

 tuberculate at tip, broadly rounded as viewed from above. 



Length of body, male "1^.''^ mm., female 2G mm.; antennae, male iL*..') 

 mm., female 10.5 nun.; tegmina, male 24.5 mm., female 23 mm.; hind 

 femora, male 10 mm., female 15 mm. 



Seventy males, 100 females. British Colundua, Crotch (Museum Com- 

 parative Zoology; S. II. Scudder); La Chapi)les, Vakimaliiver, Wash- 

 ington, July 10, S. Ilenshaw (Museum (Comparative Zoology); Little 

 Spokane, Washington, July 24, S. Ilenshaw (same); Camp Umatilla, 

 Washington, June 27, llenshaw (same); Ellensburg, Kittitas County, 

 Washington, July 14-15, Henshaw (same) ; Wallula, AVallawallaCcmnty, 

 Washington, Packard (U.S.N.M. — Kiley collection; S. H. Scudder); 

 Umatilla, Oregon, June 24, Henshaw (Museum Comparative Zoology; 

 L. Bruner); Siskiyou County, California (U.S.N.M. — Riley collection); 

 Boise City, Ada County, Idaho (same); Salmon City, Lemhi County, 

 Idaho (sanje); Henry Lake, Idaho, August (L. Bruner); Soda Springs, 

 Bannock County, Idaho (same); Montana (U.S.N.M. — Kiley collec- 

 tion); Yellowstone, Montana (same); Fort Benton, Choteau County, 

 Montana, July (same); Glendive, Dawson County, ^Montana, Bruner 

 (same); Fort McKinney, Johnson County, Wyoming, July (same): 

 Crawford County, Iowa, July 13-24, J. A. Allen; Denison, Crawford 

 County, Iowa, July 20, Allen; Dallas County, Iowa, August, Allen: 

 Jefl'erson, (ireene County, Iowa, July 20-24, in coitu, Allen; Nebraska, 

 Dodge (S. Henshaw; S. H. Scudder); Pine Bidge, Nebraska, July (L. 

 Bruner)- Valentine, Cherry County, Nebraska, liruner (U.S.N.M. — 



