8 Journal of Entomolopy and Zoology 
very prominent, its base deeply incised. Eyes rather small, viewed 
from the side o\al, reaching hardly below the middle of the side of 
the head. Antenn;c short, basal joint scarcely surpassing the cly- 
peus; second a little more than twice the length of the first; third 
and fourth together a little longer than the second. Pronotum 
short, its carinate sides feebly concavely arcuated, the hind margin 
depressed, nearly covering the basal lobe of the scutcllum. Upper 
surface sparsely clothed with cleciduous black hairs. 
Color, a pale lemon-yellow, sometimes tinged with green on the 
anterior margin of the pronotum and on the lower surface. Head 
more or less obscured or sometimes with a fuscous median line. 
Pronotum with a median fuscous longitudinal vitta, sometimes wid- 
ened so as to cover the callosities. Scutellum infuscated with its 
basal angles yellow. Closed elytra with a rather broad black com- 
missural vitta. Membrane black with the nervures pale at apex 
about the smaller areole. Apex of the tibis and tarsi black. 
Described from one male and four females taken by me on Ade- 
nostoma at Alpine, San Diego County, California, April 8, 1913, 
and one female taken by Mr. Fordyce Grinnell at Pasadena, Califor- 
nia, April 30, 1909. This species is easily distinguished by its clear 
yellow color with a black dorsal \itta. 
5. Macrotyliis essigi n. sp. 
Dark green; antennie, legs and disk of the pronotum black; elytra 
clear greenish-yellow, the clavus, costal nervure, broad apical margin 
of the corium and the membrane black, the latter with yellow nerv- 
ures. Length 4 mm. to tip of membrane. 
Head a little more oblique than in the foregoing species. Vertex 
narrowly flattened, the front becoming strongly con\ex toward its 
apex; clypeus as in the allied species. Eyes small, viewed from the 
side oblong, reaching about half way to the gula. Pronotum long, 
the sides straight and scarcely carinate. Basal lobe of the scutellum 
well exposed. Elytra nearly parallel, a little widened posteriorly. 
Antenna rather short, the basal joint just surpassing the clypeus; 
the second over three times the length of the first; apical two 
together longer than the second. Rostrum long, reaching on to the 
base of the venter. Legs long, the hind tibia? as long as the corium. 
