430 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io4 



angles finely reflexed; genae fimbriate, obtusely rounded. Pronotum 

 narrower in front, width 1.45 mm., length 1.1 mm., anterior angles 

 rounded, posterior angles broadly rounded, sides and base crenate, 

 fimbriate with moderate, obtuse setae, base finely margined; surface 

 with close, coarse punctures arranged in four transverse furrows, the 

 first or postapical entire, the other three interrupted by the median 

 line, which is very distinctly impressed over the basal half of the 

 pronotum and much more finely punctate, the punctures very close, 

 confused and run together, the first transverse or apical ridge is 

 vaguely tuberculate at middle, more distinctly so toward the anterior 

 angles, the remaining four transverse ridges are comparatively 

 smooth and minutely punctate, laterally over the convexity beyond 

 the fovea the coarse, deep punctures become elongate, arcuate, and 

 frequently run together, just anterior to the basal line the surface 

 is irregularly broken into one or two rows of flattened tubercles. 

 Elytra as wide as pronotum at base, width 1.7 mm., length 2.4 mm., 

 base margined, humeri dentate, sides weakly arcuate, not fimbriate; 

 striae deep, strial punctures fine; intervals convex, weakly tectiform, 

 minutely alutaceous, shining, outside margin slightly crenate, inner 

 margin deeply crenate by a marginal row of punctures independent 

 of the strial punctures. Metasternum smooth, shining, with scat- 

 tered, very minute punctures, depressed at middle, midline sharp, 

 rather fine and barely noticeably deeper at each end, anterior post- 

 coxal line distinct, extending out to the scabrous area at side, arcuate 

 posterior line in front of the posterior coxal plate deep and distinct. 

 Abdominal segments shining, minutely alutaceous, finely margined 

 posteriorly, finely crenate in front, the terminal segment more deeply 

 so, and each with a transverse median row of fine shallow setigerous 

 punctures bearing moderately long, fine setae. Pygidium scabrous, 

 fringed apically with quite closely placed, rather short setae. Anterior 

 femur with strong deep anterior marginal line. Middle and posterior 

 femurs smooth, shining, with the usual curving row of fom^ or five 

 setigerous punctures over the apical half, posterior marginal line 

 strong and deep, reaching three-fourths or more of the distance to 

 the trochanter. Posterior femur about one-sixth wider than middle 

 femur. Posterior tibia three times as long as wide at apex, spurs 

 narrow, the long spur and first two tarsal joints combined equal in 

 length. First tarsal joint elongate-triangular, equal in length to the 

 following two joints together. Length 3.6 mm., width 1.7 mm. 



Type: USNM 61845. 



Type locality: Tamazunchale, San Luis PotosI, Mexico (Rt. 1. 

 km. 365). 



Specimens examined: Holotype and 84 paratypes. 



Paratypes: United States: Texas: 12, Austin, June 29, H. 

 Soltau collection; 7, Bangs, Aug. 23, 1937, Turner; 5, Broun County, 



