276 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



punctate between the rugae, and glabrous. Scutellum strongly, 

 transversely carinate, and the surface finely, densely reticulate. 



Elytra slightly wider than pronotum at base, and wider at base 

 than behind the middle; sides feebly rounded for a short distance 

 behind base, broadly, arcuately constricted in front of middle, feebly 

 expanded behind the middle, then strongly narrowed to the tips, 

 which are separately, broadly rounded, and rather strongly serrulate ; 

 abdomen narrowly exposed above; disk vaguely, longitudinally con- 

 cave along the sutural margins, which are strongly elevated poste- 

 riorly, and with broad, shallow basal depressions; surface densely, 

 coarsely imbricate-punctate, and each elytron ornamented with more 

 or less distinct white pubescent spots as follows: A small spot 

 in basal depression, an elongate spot along suture in front of middle, 

 a vague, elongate spot near the apex, where the surface is sometimes 

 clothed with a few very short, scattered, white hairs. 



Abdomen obsoletely granulose, finely, sparsely punctate, the punc- 

 tures connected transversely by more or less distinct sinuate lines, 

 and sparsely clothed with short, recumbent, white hairs; first seg- 

 ment feebly flattened, and with a small, vague, median depression at 

 the posterior margin ; last segment broadly rounded at apex ; vertical 

 portions of the first segment densely clothed with white pubescence ; 

 pygidium feebly carinate anteriorly, but the carina not projecting. 

 Presternum obsoletely granulose, sparsely, finely punctate, and 

 sparsely clothed with long, semierect, silvery white hairs; prosternal 

 lobe broad, moderately declivous, and broadly subtruncate in front; 

 prosternal process rather narrow, the sides feebly expanded behind 

 the coxal cavities, then abruptly narrowed to the apex, which is acute. 

 Tibiae slender, straight, and the anterior and middle pairs armed 

 with a short tooth on inner margin at apex. Posterior tarsi slightly 

 shorter than the tibiae, and the first joint as long as the following 

 two joints united. Tarsal claws similar on all feet, cleft near the 

 middle, the inner tooth broad, shorter than outer tooth, and not 

 turned inward. 



Female. — Differs from the male in having the head of a uniform 

 bright reddish mahogany color, front slightly broader, the lateral 

 margins nearly parallel, and the surface less distinctly granulose 

 and more rugose on the front ; first abdominal segment convex, with- 

 out a median depression ; prosternum without long, erect pubescence 

 at middle, and the tibiae unarmed at apex. 



Length, 3.5-4.5 mm.; width, 1-1.25 mm. 



Type locality). — Brownsville, Tex. 



Other localities. — San Antonio, Tex. 



Type, allotype, and paraty pes. —Cat. No. 41009, U.S.N.M. 



Described from 23 examples (one type). Type, allotype, and six 

 paratypes collected at the type localit}^, March 18-20, 1908, by Jones 



