'.'" PROCEEDINGS OP THE AMERICAN ACADEMY. 



the hind femora about as long as the body. Supraanal plate broad tri- 

 angular with a very deep apical Binus, separating two dentiform triangular 

 lobes not bo long as broad and apically acute, not reaching bo tar Lack as 

 the Bubgenital plate: ccrci fairly stout with similar ami Bubequal, conical, 

 indirected, median ami apical Bpines of no great Bize, blunt tipped; suh- 

 genital plate Bubtruncate apically, with a feeble median emargination, 

 tin- styles Blight, less tliuii half :is lorn: as the apical breadth of the plate. 

 Length of body, 11 mm.; pronotum, 1.5 mm. ; fore femora, 4 mm.; 

 hind femora, 1 1 mm. 



1 g. Tehachapi, Cal., Aug. 2, A. P. Morse. 



This species hears a close general resemblance to 0. ctqualit, from 

 which it is distinguished hy its unarmed fore tibia?, slightly shorter hind 

 femora, aud the male genitalia. 



Cacopteris sinuata ?p. nov. 



Light olivaceo-testaceous, the inferior margin of the lateral lohes of 

 pronotum broadly bordered with luteous, and faint luteous Btripes in 

 place of lateral carinas. Face yellow testaceous, narrowly edged below 

 next clypeus with rufous. Pronotum about half as long again as broad, 

 the lower margin of lateral lohes sinuate, the lohes being but little deeper 

 on anterior than on posterior half of pronotum. the sinus rather slight. 

 Tegmina dark fuscous, with luteous veins. Legs long, the fore femora 

 slightly longer than the pronotum, the fore tibiae with no spines on 

 the inner margin ahove. Abdomen with a pair of narrow, luteous, 

 latero-dorsal stripes fading basally ; supraanal plate developing an 

 apical pair of long, triangular, uniformly tapering and acuminate 

 lohes, separated by a deep and narrow fissure, the lohes reaching as 

 far as the Bubgenital plate; cerci cylindrical, long, sinuate, with a 

 brief postmedian, interior, conical, pointed tooth, beyond which the 

 cerci taper to a blunt point, this whole apical portion surpassing the 

 Bubgenital plate; the latter with a Bubrectangulate apical emargination, 

 the styles slender, less than half as long as the apical breadth of the 

 plate. 



Length of body. "_''». •"» mm. ; pronotum, C> mm.; fore femora, G.5 mm. 



2 $ . Fort Whipple, Arizona, E. Palmer. 



The colors are probably allected by immersion in alcohol. Unfortu- 

 nately neither specimen has hind legs preserved. 



