104 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



13. Orthotylus nigrinasi, new species. 



Size and form, about, of viridicatus, the head a little larger 

 and the eyes larger and more prominent ; color pale green, the 

 green on the elytra segregated, leaving clear places; first an- 

 tennal joint biannulate with black, the apex of the head conspic- 

 uously black. Length 4mm. to tip of the membrane. 



Head large, two-thirds as wide as the hind margin of the 

 pronotum. Eyes unusually prominent; viewed from the side, 

 but little longer than broad. Vertex flattened, leaving the hind 

 margin distinctly carinate almost to the eyes. Front promi- 

 nent, strongly convex; clypeal sutures deep. Basal antennal 

 joint about as long as the head, the second scarcely three times 

 longer. Pronotum almost flat, the callosities scarcely promi- 

 nent; anterior margin straight, sides feebly concave, the an- 

 terior angles but little rounded ; humeri prominent. Elytra 

 flat, the tip of the cuneus scarcely surpassing the apex of the 

 abdomen. 



Color above green, the pronotum before, head and all be- 

 neath, pale or yellowish, more or less tinged with green; the 

 green of the upper surface being gathered into irregular 

 patches, especially on the elytra, leaving pale areas more nu- 

 merous toward the costa. Base of the vertex with a short 

 brown longitudinal median line ; neck with a square black spot 

 behind each eye, which is scarcely noticed unless the head is 

 exserted. Apex of the head deep black, polished, the bounding 

 line passing across the apex of the front just above the base of 

 the clypeus and obliquely down each side a little below the lower 

 angle of the eyes. Antennas pale (apical joints wanting) ; the 

 first joint black at base with a broad black annulus just before 

 the apex; second narrowly black at base and dusky toward the 

 apex. Membrane but slightly enfumed, with a darker cloud 

 beyond the tip of the areoles ; nervures green. Vestiture want- 

 ing from the type, but apparently pale. Legs pale, apical half 

 of the tarsi, extreme tip of the tibise and apex of the rostrum 

 black. 



Described from one female taken by Mr. F. Payne at El 

 Paso, Texas, August 31, 1911. The annulated first antennal 

 joint and the reiparkably black "nose" will at once distinguish 

 this very distinct species. 



Type, female, in author's collection. 



