H. C. FALL 385 



slightly convergent posteriorly from the basal third, quite strongly so in front, 

 standard markings broadly suffusing the disk, punctuation rather fine and 

 very dense, disk with small scattered sUghtly more convex smooth yellow 

 flecks; narrowly smooth or sparsely punctured along the side margins. 



Elytral punctuation coarser than that of the prothorax, densely confused 

 in a broad baso-sutural triangle, sides and rear striate, the striae deep and 

 nearly regular on the convexity; marginal interspace punctate in basal half; 

 shield small, sometimes indistinct. 



Pygidium yellow with basal margin and median spur brown; bodj' beneath 

 brown, last ventral segment in part yellow. Front thighs brown, paler basally, 

 middle and hind thighs rufo-testaceous with broad black rings; tibiae brownish, 

 paler toward the base. 



Length 4 to 4.25 mm.; width 2.3 to 2.3.5 mm. 



Distribution. — Texas: Brownsville, June (Schaeffer), April and May (Dury). 

 Arizona: San Bernardino Ranch, Cochise Co. (Snow). 



In the Arizona .specimen the broad suffused markings are 

 l)kickish fuscous instead of reddish brown but otherwise it seems 

 identical. This species resembles turhidus in size and general 

 facies but is more densely and less coarsely punctate, the baso- 

 sutural area of confused punctures much larger, the lustre dull — 

 moderately to distinctly shining in turhidus. The width of 

 front between the eyes is a trifle less in turhidus in the female, 

 and I suspect that males of the two species will not prove to be 

 very different in this respect; on this assumption the present 

 species is tabulated near turhidus. 



G9. Pachybrachys duryi new species 



Yellow, l)rown punctate, thoracic M moderate, elytra with a 

 common sutural spot on the convexity and some small marginal 

 markings; front rather narrow, the eyes separated by a distance 

 less than the vertical width of their upper lobes, even in the 

 female; no ocular lines; front claws of male not appreciably 

 enlarged. Ave. length 2.3 mm. Brownsville, Texas. 



Head not appreciably wider than the thoracic apex, front sparsely punctate 

 except in the median impressed line, markings small. Eyes separated by the 

 length of the basal antennal joint in the male, and by the length of the first two 

 joints in the female. Antennae moderate, outer joints dusky. 



Protfwra.v distinctly narrowed in front, widest and moderatelj' rounded at 

 basal third, punctuation close in the dark areas, elsewhere sparse, side margins 

 smooth. Elytra confusedly jjunctate in moderate baso-sutm-al area, striae 

 two to three and seven to eight entire, the intermediate ones broken and veiy 

 irregular; shield small, inconspicuous, marginal interspace without i)unctures, 

 the eighth stria with a strong sigmoid dislocation: standard s])ots very obvious, 



TRANS. AM. ENT. SOC, XLI. 



