146 riiOCEEDIXGS OF THE XATIOXJL Ml SEIW. voi, xx. 



T«'j::niina extending to or a little boyoml the tip of the Jilxlonien, slender, 

 scarcely taperiny, profusely maculate tlirougliout, as described below. 

 Supraanal plate of male rounded trianiiular, pointed, fully as broad as 

 lon«i; furcula consisting; of minute triangular denticles; cerci tlabel- 

 late, each consisti i*; of a very broad, upturned lateral lamella, whose 

 anterior edjje is gently convex, whose lower is strongly convex only ;it 

 the expanded l)ase and there thickened, the tii> lounded, angular, and 

 tlie whole half as long again as the extreme width; subgenital plate 

 slndlowly scoop shaped, the ai)ical edge entire, but just below it, at the 

 extremity, a conical tubercle, liasal tooth of tiie lower valve oY the 

 ovii)ositor of the female sharp, triangular, nearly as long as broad. 



Tiie general color is a fcriuginous brown above, mottled strongly with 

 blackishtuscous, livid brown below; a blackish brown median stripe, 

 bntadening ])osteriorly, passes from between the eyes to the back of 

 the head, but seldom continues, and then less deejjly, np<Mi the prono 

 turn; the face and genae vary from yellow to testaceous and are sel 

 dom blotched by dusky colors, excepting on the genae; the antennae 

 are of a lighter or darker testaceous, and are scarcely infuscated at tip: 

 a more or less broken black patch occupies the upi)er ]»art of the 

 anterior half of the lateral lobes. The tegmina are dark brownish 

 cinereous, with a slender median yellow stripe, frequently broken by 

 quadrate fuscous or blackish si)ot8, and similar spots are scattered 

 rather distantly all over the tegmina, giving them an unusually 

 si)eckled appearance; wings hyaline, the veins glaucous, except ante- 

 riorly. Hind femora variable, either with oblique ])ale patches on a 

 dark ground or — and generally — the reverse ; hind tibiae glaucous, with 

 black tipped spines, ten or eleven in number in the outer series. 



Length of body, male, 18 mm., female, 1*5 mm.; antennae, male, 0.5 

 mm., fenude. 10.25 mm.; tegmina, male, 10 mm., female, 21 mm.; hind 

 femora, male, 11.5 mm., female, 14 mm. 



Sixteen males, 12 females. Yellowstone, Montuha (U.S.N.M. — Riley 

 coilecticm); Eastern AVyoming (same); Sweetwater and Cottonwood, 

 Wyomnig(same); Cheyenne, Laramie County, Wyoming (same); Doug- 

 Lis, Converse County, Wyoming, Bruner (same); Sidney, Cheyenne 

 County, Nebraska, August (L. Bruner); Fort Kobinson, Dawes 

 County, Neoraska, August 22, Bruner (T.S.N.M. — lliley collection); 

 Western Kansas, July (same); Lakin, Kearny County, Kansas, 3,(K)0 

 feet. Septeniber 1; Colorado, 5,500 feet, Morrison; Pueblo, Colorado, 

 4 7C0 feet, July 8-0, August 30-31; Garden of the Cods, El Bas(> 

 County, Colorado; Salida, Chaffee County, Colorado, July 3 (U.S. 

 j^3I. — Kiley collection); Magdalena, Socorro County, New Mexico 

 (University of Kansas); Fort Wingate, Bernalillo County, New Mex 

 ico (U.S.N.M.— Kiley collection). 



It has also been reported from Bismar<*k, North Dakota (Bruner), 

 Minnesota (Thomas), Salt Lake, Utah (Scudder), and Spring Lake, Utah 

 {Thomas). 



