146 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. xx. 



Tegmina extending to or a little beyond the tip of the abdomen, slender, 

 scarcely tapering, profusely maculate throughout, as described below. 

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

 long; furcula consisting of minute triangular denticles; cerci flabel- 

 late, each consisti g of a very broad, upturned lateral lamella, whose 

 anterior edge is gently convex, whose lower is strongly convex only at 

 the expanded base and there thickened, the tip rounded, angular, and 

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

 shallowly scoop-shaped, the apical edge entire, but just below it, at the 

 extremity, a conical tubercle. Basal tooth of the lower valve- of the 

 ovipositor of the female sharp, triangular, nearly as long as broad. 



The general color is a ferruginous-brown above, mottled strongly with 

 blackish-fuscous, livid brown below; a blackish-brown median stripe, 

 broadening posteriorly, passes from between the eyes to the back of 

 the head, but seldom continues, and then less deeply, upon the proiio- 

 tum; 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 upper part 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 spots, and similar spots are scattered 

 rather distantly all over the tegmiua, giving them an unusually 

 speckled appearance; wings hyaline, the veins glaucous, except ante- 

 riorly. Hind femora variable, either with oblique pale 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, 25 mm.; antennae, male, 0.5 

 mm., female, 10.25 mm.; tegmina, male, 16 ram., female, 21 mm.; hind 

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



Sixteen males, 12 females. Yellowstone, Montana (U.S.N.M. Kiley 

 collection); Eastern Wyoming (same); Sweetwater and Cotton wood, 

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

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

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

 County, Nebraska, August 22, Bruner ( U.S.N.M. Eiley collection); 

 Western Kansas, July (same); La-kin, Kearny County, Kansas, 3,000 

 feet, September 1; Colorado, 5,500 feet, Morrison; Pueblo, Colorado, 

 4,700 feet, July 8-9, August 30-31; Garden of the Gods, El Paso 

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

 U.M. Elley collection); Magdalena, Socorro County, New Mexico 

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

 ico (U.S.N.M. Riley collection). 



It has also been reported from Bismarck, North Dakota (Bruner), 

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

 (Thomas). 



