96 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th See. 



Color, a bluish-green in mature examples, becoming yel- 

 lowish on the callosities and head, and paler beneath; above 

 clothed with deciduous pale hairs intermixed with thick black 

 ones. Vertex and pronotum with a pale median line more or 

 less apparent. Basal joint of the antennae green, second darker, 

 the third and fourth infuscated. Tibiae a little darker, the apical 

 half of the tarsi black. Membrane deeply infuscated, the nerv- 

 ures thickened and white below the base of the smaller areole. 



The types of this species were from Colorado and New 

 Mexico. I have seen specimens from Idaho and took it in 

 abundance in San Diego County, Calif., during March, April 

 and May, and it was not uncommon about Fallen Leaf Lake, 

 Calif., at lower levels (between 6,000 and 7,000 feet). So far 

 as I can now tell, my material was all taken on the sage brush, 

 Artemesia, spp. The blackish membrane marked with con- 

 spicuous white nervures will distinguish this pretty species from 

 its nearest relatives. 



5. Orthotylus coagulatus Uhler. 



Size and aspect of flavosparsus nearly, but with the head 

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

 clothed with minute whitish pubescence and longer black hairs ; 

 membrane with a fuscous spot beyond the areoles. Length 

 Ayomm. to tip of the membrane. 



Head rather small, viewed from above, acutely angled at 

 apex. Vertex in the female about three times as wide as the 

 eyes ; flattened toward the base, leaving the basal carina sharp 

 and prominent across its whole width ; in the male narrower, 

 hardly twice as wide as the large eyes, with the base scarcely 

 impressed and the carina less prominent. Clypeus large and 

 very prominent. Antennae long and slender, the basal joint 

 scarcely as long as the head, surpassing the tylus by one-half 

 its length ; third but little shorter than the second. Pronotum 

 short; sides straight or feebly concave in the male; callosities 

 prominent. Elytra moderately long, the tip of the abdomen 

 reaching to the middle of the cuneus in the male, sometimes 

 surpassing its apex in the female. 



