76 THE UNIVERSITY SCIENCE BULLETIN. 
and with the pronotum opaque, black and closely minutely sericeous 
pubescent. Elytra with a somewhat longer pubescence; deep black becom- 
ing velvety black toward the apex of the corium and on the tip of the 
eclavus; corium with a square whitish spot resting on the costa and a 
double one close to the apex; usually there is a small white point on the 
middle of the corium, one at the inner apical angle and another near the 
tip of the clavus. Membrane strongly differentiated, whitish hyaline, a 
little enfumed, the nervures strong, brown; the areoles with a brown sub- _ 
apical mark and sometimes another near the base. Beneath and legs 
black, the knees, tibiz except at base and apex and the tarsi, their tips 
excepted, pallid. In the female the apex of the abdomen and sometimes 
the slender hind margins of the ventral segments are pale. 
“Described from three males and two females taken along the San 
Diego river at Lakeside, May 7, 1913, and from a moist ravine at Alpine 
in June. Dr. J. G. Bradley also took this species at Sisson, Cal., in August, 
1908. The species can be easily recognized by its small size, intensely 
black color, the strongly distinguished membrane and the four white 
marginal spots on the elytra.”—Van Duzee. 
Genus IOSCYTUS Reuter 1912. 
“Body oblong. Head subvertical, gula rather brief. Eyes distinctly 
distant from pronotum, exserted, anteriorly moderately convergent. Part 
of vertex bearing ocelli slightly elevated. Apex of rostrum reaching inter- 
mediate coxze. Antenne incrassate, shortly thickly pubescent, sparsely 
pilose. First segment\rather long. Hemelytra laterally little rounded, 
destitute of white markings. Interior veins of corium obsolete. Embolium 
entirely distinct from \ecorium. Membrane furnished with four areas. 
First or internal base ptoduced before the proximal about one-quarter its 
length. Apex distinctly 
posterior tarsi as long as\second. Type Salda polita.”’ 
i“ Jo8cytus politus Uhler 1877. 
Uhler, Bul. U. S. G. G. Surv., II, p. 441, 1877. 
“Elliptical, highly polished, jet-black, very indistinctly punctate; the 
whole upper surface set with erect, remote, brown hairs. Head from 
above short, vertical in front and a little decurving, dull black, densely ] 
and irregularly scabrous and rugulose, the raised margin of the clypeus 
and the tylus ferruginous or pale piceous. Rostrum pale piceous, reach- 
ing between the intermediate coxe; base of vertex a little convex, formed 
into a distinct neck, contracted on the occiput; eyes very prominent, — 
brown, placed obliquely. Antennz setulose, moderately long, stout, the 
two apical joints about as stout as the basal one; ‘basal joint short, 
blackish-piceous, paler above; second joint much shorter than the two 
apical ones united, pale piceous or dull yellow; two apical joints dusky © 
black, subfusiform, subequal in length, but much longer than the basal 
one. Pronotum subtrapezoidal, transverse, short, highly polished; the 
callosities forming the anterior lobe very convex, not reaching the sides, 
with a large, indented point in the center; the posterior lobe much shorter, 
arched, higher than the anterior one, deeply concave, the humeral angles — 
long, broad, and flat, subtruncated, with an oblong tubercle near the outer 
angle; the impressed line around the ecallosities very deep-seated, punc- — 
tate; lateral submargins broadly flattened, rugulose, the edge recurved, — 
decurving anteriorly. Pleural pieces dull black, obsoletely and minutely 
punctate; the prosternum very short, scarcely covering the base of the 
coxe. Coxe black; femora dull yellow or ferruginous, the under side of 
the anterior pair piceous; tibiz dull yellow, their tips, the tarsi, and nails 
piceous. Scutellum moderately convex, obsoletely scabrous at base; the 
apical portion a little less prominent than the base, and the depression — 
between them shallow; the surface faintly rugulose. Hemelytra flat, — 
ferruginous, the clavus dusky black, and the costal area jet-black, polished, 
laced above apex of second. Third segment of | 
