Pomona College, Claremont, California 9 
Genital segment of the male very large, polished, occupying one 
half the length of the abdomen. Oviduct of the female long, begin- 
ning before the middle of the venter. 
Color dark green, more or less varied with black or fuscous. Ver- 
tex green with two minute black points at the middle; front more or 
less broadly bordered with fuscous. Clypeus black, the cheeks usu- 
ally green. Ponotum black with the lateral margins and sometimes 
the median line green, the callosities more or less broadly yellow. 
Scutellum greenish-yellow, the middle of the basal lobe black. 
Elytra clear greenish-yellow with the clavus, linear costal margin 
and apical vitta on the corium black. Cuneus entirely yellow. 
Membrane black, deeper beyond the areoles, the nervures conspic- 
uously yellow. Beneath infuscated along the middle, the genital 
segment black and polished. Antenne and legs black, the hind 
femora with a green line. Upper surface clothed with short decidu- 
ous black hairs. 
Described from two males and two females taken by Mr. E. O. 
Essig on chaparral growing among the hills at Berkeley, California, 
July 7, 1915. It gives me pleasure to dedicate this strongly marked 
species to its discoverer who is well known for his studies on the 
Aphidide and for his work in economic entomology. 
6. Macrotylus lineolatus Uhler 
This and the following two species belong to a group having a 
more elongated body with the head subhorizontal, the pronotum 
much narrowed anteriorly with its sides feebly sinuated and sharply 
carinate as far forward as the transverse impressed line, the rostrum 
long, surpassing the base of the venter and the elytra parallel or 
slightly sinuated. The colors here are more subdued and uniform 
without the striking patterns we find in the preceding species. 
In lineolatus the color is a peculiar shade of greenish-yellow over 
almost the entire body. The upper surface is sparsely clothed with 
short fuscous hairs and is clouded with fuscous on the posterior field 
of the pronotum, excepting the sides and median line, on the clavus 
and on the disk of the corium within the principal nervure, more dis- 
tinct apically. These dark markings on the elytra are often nearly 
obsolete or they are represented mostly by blackish punctures. 
