H. M. PARSIILEY 
91 
This species, which the few speeimens at hand show to ])e of 
i-ather wide distril)ution, is related to mnrginatm and to ever- 
nianni. From the former it is distin^'iiished by color and by its 
longer second antennal segment, and from the latter by antennal 
coloration, opaciue corimn, and larger average size. The struc- 
tural details of pronotum, scutellum, and genital segnumts are 
distinctive. 
52. Aradus (Aradus) evermanni \’an Duzee (Plate \’I, fig. 52.) 
1920. Aradns evermanni Van Duzee, Proc. Valifornia Acad. Sci. (4), ix, 
p. 33. 
Distribution . — Tex.\s. ARiznx.\: Iluachuca Mountain.^, VII, 17, 1905 
(H. Cl. Barber); Cliiricalnia Mountains, VI, 9 (II. Cl. Hiilibard). 
FORNi.\: Clilroy; San Francisco, IX, 10, 1917 (E. P. Van Duzee). 
Description. — Black; lateral margins of pronotum, corium exce])t base and 
ai)ex, and sometimes the three basal segments of antennae and the con- 
nexivum, obscure brown; connexivum with cons])icuous pale bands. 
Head slightly broader than long, about as long as ])ronotum; tylus short 
and very thick, slightly bulbous toward apex; im])ressions of vertex short, 
narrow, shallow, widely seiiarated, parallel, connected posteriorly; preocular 
tubercles small; antenniferous sjiines short, rather stout, conical, nnxlerately 
divergent, without lateral tooth; postocular tubercles well developed, obtuse; 
antennae (fig. .52c) shorter than head and pronotum together (2<S to 34), 
the first segment reaching middle of tylus, length of second somewhat more 
than width of head including both eyes (13.5 to 12); rostrum extending al- 
most to middle of mesosternum. Pronotum (fig. 52d) much shorter than 
head, the lateral margins slightly expanded and rellexed, very finely and 
regularly denticulate; carinae well elevated. Scutellum rather broad, vari- 
able (13.5 or 15 to 20), longer than pronotum (20 to 15), triangular, sides 
very slightly curved toward the narrowly rounded apex, moderately elevated; 
(fiscal elevation slightly higher than margins, V-shaped. Ilemielytra (cf' 9 ) 
extending nearly to apex of abdomen, corium more or less over the fifth 
segment; ba.sal expansion of exocorium very slight; corium hyaline, with 
numerous distinct transverse, veins. 
cf (fig. 52b). Fifth ventral segment two-thirds as long as sixth; genital 
Segment rather large, slightly convex, the lobes very short; alxlomen nar- 
rowly oval, apical angles of the segments slightly ])rominent. Length, 3.7 
mm. 
9 (fig. 52a). Posterior margin of dorsal genital segment tran.sver.se, 
slightly sinuate; genital lobes almost transverse, contiguous or nearly so at 
middle. Length, 4.5 mm. 
Type specimen (San Francisco, California), ('alifornia Academy 
of Sciences, Xo. 080. 
TK.\NS. AiM. ENT. SOC., XLVII. 
