446 PROCEEDINGS OP THE AMERICAN ACADEMY. 



e^. Wings nowhere roseate. 

 f^. Prozona neither tectate nor tumid, with an obscure broad median 



stripe, not passing the prozona 33. sepa7-ata. 



/2. Prozona more or less tectate, and, at least in the female, tumid, 

 without a median stripe. 



f/^. Superior carinas of hind femora obscurely serrate ; inner spines of 

 hind tibiffi but little longer tlian deptli of tibiae. 



h^. Prozona not arched longitudinally ; pronotum of male not more 

 than half as long again as greatest dorsal width of metazona, its 

 posterior margin distinctly obtusangulate ; hind tibije red. 



34. shoshone. 

 li'. Prozona feebly arched longitudinallj' ; pronotum of male dis- 

 tinctly more than half as long again as greatest dorsal width of 

 metazona, its posterior margin rather feebly obtusangulate; hind 



tibiae testaceous (?) 35. oUiquata. 



(j^. Superior carina of hind femora distinctly serrate ; inner spines of 

 hind tibiae nearly twice as long as depth of tibiae . . 3G. jicrturbans. 



e-. Wings roseate distally 87. hicittala. 



aP'. Antennae of male (those of female always relatively sliorter) not or hardly more 

 than, often less tlian, one fourth longer than tlie iiead and pronotum together. 

 l^-. Prozona more or less strangulate (especially in female?), narrower than tlie 

 head exclusive of the eyes, the metazona somewhat abruptly and not gradually 

 expanded and bullate. 



ci. Prozona transversely rotundato, though feebly and delicately carinate ; 

 metazona posteriorly rotundato-subrectangulate. 

 c/i. Anal area of tegmina at broadest one third broader than the interspace 

 between the eyes ; anal cerci of male apically rounded ; metazona about one 



half wider than middle of prozona 38. peregrina. 



d-. Anal area of tegmina no broader or scarcely broader than the interspace 

 between the eyes ; anal cerci of male distinctly emarginate apically, the 

 lower lobe the longer; metazona about one third wider than middle of 



prozona 39. pamnensis. 



c^. Prozona distinctly tectate and bluntly carinate ; metazona posteriorly very 



obtusangulate and broadly rounded 40. exsul. 



b". Prozona not strangulate, no narrower than the head exclusive of the eyes, 

 the metazona gradually and regularlj- expanding posteriorly to a greater or less 

 degree, never bullate. 



ci. Of large size. Pronotum scarcely or not at all tectate, the median stripe 

 broad, the posterior margin obtusangulate and rounded ; tegmina distinctly 

 maculate or obliquely strigate ; male cerci tapering from base to apex. 



</i. Tegmina feebly if at all pantherine in markings, the costal area immacu- 

 late, 

 fii. Markings of distal half of tegmina composed of longitudinal streaks by 

 the more or less interrupted infuscation of the longitudinal veins, enforced 

 by a partial infuscation of the adjoining cross-veins * ... 41. pallens. 



* These interruptions, however, often occur at similar intervals on adjoining 

 veins, and so give rise also to a more or less noticeable transverse arrangement, 

 but this is less conspicuous than the longitudinal disposition. 



