82 FAMILY IV. — CYDNIDjE. 



its apex broadly rounded; cheeks slightly longer than tylus, 

 their margins broadly recurved, and beset within with very 

 numerous erect bristles and short spines; antennae short, 

 stout, not reaching base of pronotum, second joint much short- 

 er than third, 3 — 5 subequal ; beak reaching middle coxae, sec- 

 ond joint shorter than third and fourth united ; pronotum sub- 

 quadrate, wider than long, its sides feebly curved in front of 

 middle, front margin deeply concave without impressed line be- 

 hind it, front angles obtusely rounded, disk with a vague trans- 

 verse impression at basal third ; scutellum short, broad, tri- 

 angular, its tip broadly rounded ; corium short, wide, its apex 

 truncate ; membrane not surpassing abdomen, without veins ; 

 osteole short, lying very near and parallel to front margin of 

 metasternal plate, its opening ending in a rounded concavity; 

 front tibiae fossorial, gradually widened toward apex, beset 

 with numerous acute spines. 



Van Duzee has merged this genus with Aethus Dall, but the 

 broadly rounded apex of scutellum, much shorter second an- 

 tennal joint, fringe of long hairs around the entire body, short 

 veinless membrane, and different form of osteole are sufficient 

 to justify its retention. Two species are known, one of which 

 occurs frequently in the eastern states. The other, C. testudi- 

 natus (Uhler) (1876, 276), was described from California, is 

 known from Colorado and New Mexico, and is accredited to 

 "Indiana" by Van Duzee (1917, 20), but no other record of its 

 occurrence east of the Mississippi can be found, hence it is not 

 included. There is very little in the original description to 

 distinguish it from obi i quits. 



44 (53). Cydnus obliquus (Uhler), 1872, 394. 



Broadly oval, subconvex, obtuse behind, thickly fringed on all mar- 

 gins with long hairs. Chestnut brown, shining; antennae and legs red- 

 dish-brown, the tarsi paler. Head declivent, as broad across the eyes as 

 long; cheeks slightly convex, finely obliquely wrinkled, with a few fine 

 punctures and a distinct fovea near eyes, each with about ten short sub- 

 marginal teeth and six or seven longer bristles ; tylus with two teeth ; 

 occiput more strongly convex, impunctate. Pronotum about one-third 

 wider than long, subconvex; disk with a curved row of punctures near 

 front margin behind which is a large curved transverse smooth area; 

 elsewhere coarsely and closely punctate, more sparsely so near base. 

 Scutellum with convex area near base almost smooth, behind this finely 

 and rather closely punctate. Elytra finely and sparsely punctate; costal 

 edge with eight or ten setae-bearing punctures. Abdomen smooth at 



