312 PROCEEDINGS OF THE NA TIG XA L U USE UM. VOL. xx. 



between the eyes as broad (male) or half as broad again (female) as the 

 lirst antenna! joint; fastigium shallow (female) or moderately sulcate 

 (male) with low, stout, nearly parallel, bounding walls and scarcely 

 expanding in front; frontal costa stout, well advanced, subequal, 

 scarcely enlarging downward, above flat, at the ocellus and below it a 

 little and broadly sulcate. Pronotum simple, the metazoua coarsely 

 and faintly punctate, expanding very slightly and a little depressed 

 above anteriorly, on either side; prozona narrowed a little in front but 

 above only; transverse sulci distinct and continuous; median carina 

 slight and confined to the rnetazona, lateral carinae subobsolete. Pro- 

 sternal spine not very long, erect, appressed conical, blunt; interspace 

 between mesosternal lobes thrice (male) or nearly twice (female) as long 

 as broad. Tegmina extending a little (female) or considerably (male) 

 beyond the abdomen. Extremity of male abdomen clavate, hardly 

 recurved, the supraanal plate triangular, considerably longer than 

 broad, bluntly pointed, the sides nearly straight, slightly puckered in 

 the middle; furcula consisting of a pair of sinuous, depressed, conical, 

 pointed projections, diverging at right angles, about half as long as 

 the cerci; cerci forming very simple compressed laminae, the basal 

 three-fifths straight, tapering a little and directed backward and 

 upward, the apical two-fifths also straight, enlarging slightly, keeping 

 the same direction but bent a little inward, the outer surface a little 

 hollowed, the extremity truncate, its corners rounded; subgenital lobe 

 scoop-shaped but slightly produced at the apex, the margin entire. 

 Basal tooth of the lower valves of the ovipositor sharp, triangular, but 

 much broader than long. 



The general color is a dirty cinereous above, a dingy clay yellow 

 below; antennae dull testaceous, becoming somewhat ferruginous 

 toward the tip; a pretty broad and usually distinct, blackish brown or 

 piceous band extends from behind the eye along the upper portion of 

 the lateral lobes across the prozona, and sometimes as a blurred and 

 expanded continuation of it across the rnetazona also. Tegmina 

 brownish cinereous, the anal area sometimes a little lighter, the dis- 

 coidal area enlivened to a greater or less extent, but seldom conspicu- 

 ously, by an alternation of blackish and pallid longitudinal rectangular 

 spots. Hind femora dirty clay brown with dusky incisures, above with 

 median and subapical dusky or dark fuscous patches; hind tibiae 

 red with black-tipped spines, ten to twelve in number in the outer 

 series. 



Length of body, male, 24 mm., female, 30 mm.; antennae, male, 13.5 

 mm., female, 12 mm.; tegmina, male, 21 mm., female, 24 mm.; hind 

 femora, male, 14 mm., female, 1C.5 mm. 



Twelve males, 11 females. Pueblo, Colorado, August 30-31. 



The original types of this species are all that I have seen, but it is 

 said by Bruner to be found also in " Kansas, Nebraska, Wyoming, 

 Utah, Nevada, Idaho, Montana, and the Dakotas, along with New 



