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



obtuse apex incurved; sinistral finger-like or a little thickened 

 toward its apex, a little shorter than the dextral. 



Color black, polished on the front and clypeus ; vertex, oc- 

 cipital margins and antennal sockets obscurely fulvous. Disk 

 of the posterior lobe of the pronotum in the female broadly dull 

 fulvous, the callosities tinged with the same color. In the male 

 this fulvous disk is much reduced. Coxse and legs pale ful- 

 vous, the apex of the femora and tibiae becoming infuscated, in 

 the male almost black, the tip of the tarsi black. Disk of the 

 corium in the female with a whitish vitta, broadest near the 

 base and expanded on the cuneus so as to cover all but the inner 

 angle and apical margin. In the male this pale ray is much re- 

 duced and confined to the base of the corium. Membrane black 

 with a pale line along the apical margin of the cuneus, which 

 sometimes encroaches upon the apex of the nervures. 



Described from one male and three female examples taken 

 on willow at Batavia, N. Y., July 5, 1914, by Mr. H. H. 

 Knight, who has kindly sent them to me for study and to whom 

 it gives me pleasure to dedicate this interesting species. 



Type, male, and allotype in collection of H. H. Knight. 

 Paratype in author's collection. 



30. Orthotylus omatus, new species. 



Size of formosus, but proportionately broader. Pale green- 

 ish varied with fuscous and sometimes tinged with sanguinous ; 

 median line of the pronotum and apical field of the scutellum 

 in the female pale. Length 6mm. to tip of the membrane. 



Head vertical. Vertex flat, but little depressed; the fovse 

 obscure, basal carina distinct. Front scarcely convex; clypeus 

 narrow, moderately prominent. Eyes large, about two-thirds 

 the width of the vertex ; viewed from the side broad ovate, but 

 little narrowed below, reaching nearly to the gula. Pronotum 

 broad, rather flat ; sides a little concavely arcuated, the humeri 

 prominent; anterior angles but little rounded; surface opaque 

 and distinctly shagreened; callosities little elevated. Antennae 

 short ; first joint as long as the head ; second nearly as long as 

 the head and pronotum together; third and fourth conjointly 

 about two-thirds the length of the second. Basal lobe of the 

 scutellum somewhat exposed. Elytra broad, the costa a little 



