Vol. IX] VAN DUZEE— NEW HEMIPTEROUS INSECTS 339 



Described from one female taken by me in Golden Gate 

 Park, San Francisco, September 16, 1917. While very close 

 to gracilicornis this species may readily be distinguished by 

 the diagnostic characters given above. Aradns margbiatus 

 Uhler differs in color of antennae, etc. Named for Dr. Barton 

 W. Evermann, director of this Academy, in recognition of 

 his ready assistance and of his unfailing interest in the 

 broader phases of entomological study. 



Holotype, female (No. 686), in the collection of the Cali- 

 fornia Academy of Sciences. 



9. Aradus snowi, new species 



Allied to fallen i but narrower, parallel, with thick, white 

 antennae, which are black only at base and extreme tip. 

 Length 4 mm., width 13^ mm. 



Male: Head as in falleni, the anterior process quite strongly con- 

 stricted near the base ; vertex almost entirely depressed with a small 

 median raised area and a few minute granulations, the margin prominent 

 and a little produced behind the eyes. Antennae about as long as in ./allcni 

 but much thicker; first segment scarcely exceeding the antenniferous 

 tubercle and hardly longer than wide; II somewhat shorter than III 

 and IV together, regularly increasing in thickness from base to middle, 

 beyond cylindrical and equal in thickness to an eye; III almost as thick 

 as II and two thirds its length, a little narrowed basally ; IV cylindrical, 

 a little thinner than III and two thirds its length. Rostrum attammg the 

 anterior coxje. Pronotum a fourth shorter than the head, its median line 

 one half its greatest width ; sides strongly expanded and upturned, sinuated 

 behind the prominent rounded anterior angles; behind the middle very 

 feebly arcuated; discal carinae as in the allied species but quite obviously 

 arcuated, the edge closely, minutely crenulate. Scutellum longer than 

 in falleni, the carinate sides rectilinear almost from their base. Costal 

 margin of corium rectilinear from base nearly to apex, the areoles sub- 

 hyaline and crossed by irregular veinlets. 



Color black becoming brown on the expanded pronotal margins and on 

 most of the elytral veins; the elytral areoles and membrane whitish 

 hyaline, the latter quite distinctly maculated; antennae creamy white; 

 first segment, basal half of second and apical half of fourth black. 



Described from one male taken by the late Prof. F. H. 

 Snow in the Santa Rita Mts., Arizona, in June, between 

 five and eight thousand feet elevation. The parallel form and 

 conspicuous black and white antennae will readily distinguish 

 this interesting species. This specimen is carded so the geni- 

 tal characters are mostly covered. 



Holotype, male, in collection of the author. 



