1966 ] 
Kormilev — A radidae 
29 
12; rostrum reaching to middle of prosternum. Pronotum (Fig. 5) 
less than half as long as its maximum width ( cf 20:47, 9 25:56) ; 
anterior border sinuate; anterolateral borders straight, with mod- 
erately strong, irregular teeth; posterolateral borders barely convex, 
slightly convergent posteriorly; disc flat; interlobal depression some- 
times obsolete in middle or very shallow; carenae thin and semi- 
obliterated. Sc.utellum triangular, longer than its width at base ( cf 
26:21, 9 32:23), shorter than ( cf ) or as long as (9) head; lateral 
borders low, very slightly convex; apex narrowly rounded; basal 
elevation obsolete. Hemelytra narrow, leaving entire connexivum 
and parts of tergum exposed ; reaching genital lobes ( cf ) or base of 
tergum VII (9) ; corium extending a little beyond ( cf ) or to (9) 
suture between terga IV and V, its basolateral borders expanded, 
rounded, and moderately reflexed. Abdomen ovate, longer than its 
maximum width across segment IV ( cf 80:66, 9 106:84); lateral 
borders convex, very finely serrate, and slightly notched at PE angles 
of connexiva; genital lobes (Figs. 7 — 8) slightly convex posteriorly, 
more so in female. Color greyish brown; antennae, head, pronotum, 
scutellum, and fore half of connexiva slightly darker; lateral borders 
of pronotum in middle whitish; basolateral expansions of corium, and 
round, callous spots on connexiva III to VII also whitish; some 
specimens almost uniformly dark grayish-brown. Total length: cf 
5.75 mm., 9 7-20 mm.; width of pronotum: cf 1.88 mm., 9 2.24 
mm.; width of abdomen: cf 2.64 mm., 9 3-36 mm. 
Aradns lawrencei is related to both Aradus basalis Parshley and 
Aradus oviventris , n. sp. From the former it differs by the shorter 
antennal segment II, which is equal in length to the interocular space 
and one eye only, the much shorter rostrum, reaching only to the 
middle of the prosternum, the smaller size and different coloration. 
From the latter species it differs by the shorter rostrum, relatively 
shorter head (only slightly longer than its width through eyes), 
relatively shorter antennal segment II, much flatter pronotum, with 
obsolete, or very shallow interlobal depression, and different colora- 
tion. 
