110 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



8. PODISMA OREGONENSIS. 



(Plate VII, fig. 10.) 

 Pezotettix oregonensis THOMAS, Rep. Geogr. Expl. 100th mer., V (1875), pp. 888,^889. 



Of rather large size for this genus, blackish fuscous more or less 

 ferruginous, sordid testaceous below. Head sordid olivaceous, much 

 suffused or sprinkled with fuscous, above wholly or almost wholly mius- 

 cated, with a broad piceous postocular band; vertex gently tumid, feebly 

 elevated above the pronotum, the interspace between the eyes nearly 

 (male) or distinctly more than (female) twice as broad as the first 

 antennal joint; fasti gium rather steeply declivent, shallowly and 

 broadly (male) or scarcely (female) sulcate; frontal costa fading just 

 before the clypeus, equal, slightly narrower than the interspace between 

 the eyes, faintly depressed at the ocellus, nowhere sulcate, rather 

 sparsely punctate throughout, biseriately and more heavily above; eyes 

 moderately large, not prominent, anteriorly subtruncate, a little (male) 

 or scarcely (female) longer than the infraocular portion of the genae; 

 antennae rufous, sometimes feebly infuscated apically, fully two-thirds 

 (male) or a little more than half (female) as long as the hind femora. 

 Pronotum subequal, slightly enlarging posteriorly on the posterior 

 half, the sides with a broad postocular piceous band confined to the 

 prozona, less conspicuous in the female than in the male and often 

 broken, the disk rather broadly convex and passing into the inferioily 

 vertical lateral lobes by a well rounded shoulder, occasionally showing a 

 blunt an gulation; median carina distinct on the metazona, generally 

 very feeble on the prozona and often subobsolete between the sulci ; 

 fron t margin truncate, hind margin very broadly convex, occasionally sub- 

 augulate ; prozonalongitudinal (male) or quadrate (female), about a third 

 (male) or at most a fourth (female) longer than the densely punctate meta- 

 zona. Prosternal spine rather large and stout, conical or subconical, 

 bluntly pointed; interspace between mesosternal lobes nearly (male) or 

 fully (female) half as broad again as long, narrower than the lobes; meta- 

 sternal lobes subattingent (male) or moderately approximate (female). 

 Tegmina about as long as the pronotum, subattingent, ovate, apically 

 bluntly acuminate, at most twice as long as broad, ferrugineo-fuscous. 

 Fore and middle femora considerably tumid in the male; hind femora 

 rather long, not very slender, testaceous, more or less but generally much 

 and confusedly infuscated, not infrequently distinctly and obliquely 

 bifasciate with fuscous, the lower face and lower half of inner face 

 flavous, the geniculation more or less infuscated ; hind tibiae sordid pale 

 olivaceous, with a fuscous patellar annulus, the spines black nearly 

 from the base, eleven to twelve, rarely ten, in number in the outer series. 

 Extremity of male abdomen considerably clavate, much recurved, the 

 supraanal plate subtriangular with rectangulate apex, the lateral mar- 

 gins strongly elevated in the basal half, the median sulcus moderately 

 deep, fading beyond the middle of the plate, bounded by rather broad 



