198 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



Abdomen beneath finely, sparsely punctate, more densely so on the 

 first two segments, more or less rugose at the sides, with sparsely 

 pubescent spaces on the first two segments midway between the 

 middle and side, and a similar spot on the third segment at the side ; 

 first segment feebly convex, without a median groove; last segment 

 broadly rounded at apex; vertical portions of first segment densely 

 pubescent, second nearly glabrous, and the following segments 

 sparsely pubescent ; pygidium coarsely punctate, distinctly carinate, 

 but the carina not projecting. Prosternum finely, densely punctate, 

 densely clothed at middle with long, erect, inconspicuous hairs, which 

 extend on the front of the metasternum; prosternal lobe, broad, 

 moderately declivous, and rather deeply, broadly emarginate in front ; 

 prosternal process broad, the sides parallel to behind the coxal cavi- 

 ties, then arcuately narrowed to the apex, which is rather acute. 

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

 with a distinct tooth on the inner margin at apex. Posterior tarsi 

 about as long as the tibiae, and the first joint as long as the following 

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

 the inner tooth broad, shorter than the outer one, and not turned 

 inward. 



Length, 5 mm. ; width, 1.25 mm. 



Female. — Differs from the male in having the head uniformly 

 bronzy brown, front slightly wider at top than at bottom, the lateral 

 margins feebly, obliquely expanded from bottom to occiput, and with 

 only a few short hairs behind the epistoma; prosternum not clothed 

 with long, erect hairs at middle, and the tibiae without a distinct 

 tooth at apex. 



Redescribed from the male lectotype, No. 3485, in the Philadelphia 

 Academy of Natural Sciences. 



Type locality. — Texas, no definite locality, but probably at Waco. 



DISTRIBUTION 



Material examined: 



Texas: Type locality (probably Waco). Columbus, June (E. A. Scbwarz). Also 

 recorder! by Chamberlin in the Schaeffer Collection from New Braunfels. 



Variations. — In the few specimens examined no variations have 

 been observed except in color and size. The color of the pronotum 

 varies from bronzy green to aureus, with a more or less distinct 

 cupreous tinge, and the length from 3.75 to 5.5 millimeters. 



Host. — Chittenden (1900) records this species as having been reared 

 by E. A. Schwarz from huisache (Acacia fames-iana (Linnaeus) Will- 

 denow) at San Diego, Tex., but the specimen can not be found, and 

 this host-plant record should be verified. 



This species seems to be rare in collections and the eight specimens 

 in the Horn collection in the Academy of Natural Sciences in Phila- 



