Vol. VI] VAN DUZEE— SPECIES OF ORTHOTYLUS 97 



Dextral hook of the male genital segment short, knob-like ; 

 the sinistral large, convex, filling the excavation at the apex of 

 the genital segment ; its apex broadly rounded. 



Color pale green, becoming yellowish, especially on the head 

 and beneath ; the color on the elytra apparently coagulated so 

 as to leave irregular pale spots and marks. Vertex and pro- 

 notum sometimes with a continuous pale median line. An- 

 tennae and legs soiled yellowish; the tibial bristles, tips of the 

 tibiae and apical one-half of the tarsi black. Membrane slightly 

 enfumed at apex ; apical inner edge of the larger areole broadly 

 green or fuscous ; at the tip of the cuneus is a white area fol- 

 lowed by a distinct fuscous cloud. Upper surface clothed with 

 minute pale pubescence and longer black hairs, all of which 

 are easily rubbed off. 



The types were from Colorado. I found it quite common in 

 that state and have taken a few in San Diego County, Calif., 

 at Lakeside and Alpine, and Mr. H. G. Barber has kindly sent 

 me a specimen from the Huachuca Mountains, Arizona, taken 

 July 20. The mottled aspect of the elytra and the variegated 

 membrane will distinguish this species. 



6. Orthotylus flavosparsus Sahlberg. 



Small, oblong-ovate; clear green, becoming yellowish on 

 the callosities, head and lovv^er surface; membrane slightly en- 

 fumed, with the surface of the areoles pale green. Length 4mm. 

 to tip of membrane. 



Head about as in viridicatus, small with the eyes prominent 

 in the male, less so in the female. Vertex flat with a median 

 areolate depression before the prominent basal carina, less con- 

 spicuous in the female. Front but moderately convex, the 

 clypeus small with its base rather above the line of the an- 

 tennae. Antennae short, the basal joint unusually short. Pro- 

 notum as in the allied species, short and flat with prominent cal- 

 losities. Elytra short, the apex of the abdomen in the male 

 reaching to the middle of the cuneus, nearly to the apex of the 

 membrane in the female. 



Dextral hook of the male genital segment minute, rounded; 

 sinistral rather large, broad at base, much extended outwardly 



