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



covering the disk of the clavus, another on the corium within, 

 exterior to which is a short fuscous ray; cuneus entirely pale. 

 Membrane blackish-fuscous, the nervures pale at apex. Ex- 

 treme base of the elytra touched with fuscous. Pleural pieces 

 mostly black. Abdomen black with the disk and margins pale. 

 Legs very pale green, the tarsi infuscated and black at apex. 

 Upper surface clothed with short pale pubescence. 



Described from two male examples taken on willows at 

 Mussey's and near Grossmont, San Diego County, Calif., in 

 April and May, 1913. 



Type, male, in author's collection. Paratype, male, in Mu- 

 seum of California Academy of Sciences (No. 319). 



22. Orthotylus affinis, new species. 



Very near molliculus, a little larger and darker with the 

 basal joint of the antennae pale, the pronotum narrower be- 

 fore, the pale costal border broader and not marked with a fus- 

 cous ray, the sides of the body beneath scarcely marked with 

 black, and a different male genitalia. Length 6mm. to tip of 

 membrane. 



Head as in molliculus, the vertex strongly impressed before 

 the prominent basal carina, the clypeus but moderately promi- 

 nent. Eyes oval, viewed from the side proportionately nar- 

 rower than in the allied species. Pronotum apparently longer, 

 the pale space before the callosities broader and the anterior 

 angles much rounded, making the anterior margin look 

 shorter. Legs longer, the hind femora distinctly surpassing 

 the tip of the abdomen. 



Male genitalia larger, pale ; the dextral hook produced into 

 a long sickle-shaped piece, acute at apex and serrated for a 

 space along the external edge, the base angled but without a 

 square projection, the curve forming a little more than a half 

 circle; sinistral hook longer, a little curved and distinctly ex- 

 panded toward the apex. 



Color a very pale testaceous or greenish. Vertex with a 

 pair of subtriangular black marks in the foveate basal impres- 

 sions. Front with a blackish arc on either side, united above 

 where they nearly or quite connect with the basal marks; on 

 the base of the clypeus is a black polished spot which encroaches 



