SCUDDER. — NORTH AMERICAN DECTICIN^. 91 



Cacopteris ephippiata sp. nov. 



Luteo-testaceous, the lower anterior margin of lateral lobes bordered 

 with luteous, the outer face of the stouter part of the hind femora with a 

 slender median and broader and longer inferior fuscous streaks, the teg- 

 mina blackish, with the main lateral veins luteous. Pronotum about 

 half as long again as broad, the lateral lobes twice as deep in the anterior 

 as in the posterior half, the sinus deep, the lower margin of deeper por- 

 tion of pronotum strongly arcuate. Fore femora considerably shorter 

 than pronotum, the fore tibite with no spines above on inner margin, the 

 hind femora long, as long as the body. Supraanal plate with a pair of 

 subattingent, long and slender, tapering, depressed and pointed dentiform 

 lobes, nearly reaching the tip of the subgenital plate, separated by a deep 

 and narrow fissure ; cerci similar to those of C. sinuata but stouter and 

 shorter, the tip not reaching so far back as the subgenital plate ; the lat- 

 ter rather narrow apically with rectangulate emargination. 



Length of body, 20 mm. ; pronotum, 7.1 mm. ; fore femora, 6 mm. ; 

 hind femora, 20 mm. 



1 $ . Sonora, Schott, Emory's Mexican boundary survey. 



Cacopteris nevadensis sp. nov. 



Fusco-griseous, the lateral lobes of pronotum more or less marked 

 with piceous especially above, with a luteous patch bordering the infero- 

 posterior margin ; head somewhat lighter below the lower level of the 

 eyes, the legs concolorous, the tegmina of the male dull testaceous, with 

 an apical black spot outwardly ; antennse much longer than the body, 

 rufo-testaceous. Pronotum but little longer than broad, the lateral lobes 

 deep, the lower margin strongly bent-arcuate with no sinus posteriorly. 

 Legs rather long, the fore femora as long as {^) ov shorter than ( 9 ) the 

 pronotum, the fore tibiae with one or two {^) or no (9) spines on the 

 inner margin above, the hind femora as long as ( (^ ) or shorter than ( 9 ) 

 the body. Supraanal plate of male triangular, somewhat brief, fissured 

 apically by a deep V-shaped cleft, forming on either side a short, trian- 

 gular, pointed lobe not reaching so far as the subgenital plate ; cerci with 

 the basal half cylindrical, rather stout, at its end furnished with an inte- 

 rior hook, beyond which the cerci form an incurved, tapering, acuminate 

 spine, bent before the infuscated tip ; subgenital plate apically narrowed 

 by compression, rectangularly emarginate, the styles moderate, more 

 than half as long as the apical vv'idth of the plate ; ovipositor straight, 

 longer than the hind femora, but shorter than the body. 



