Goleopterological Notices, VI. 491 



longer than wide, only very slightly wider than the prothorax, 

 scareel}- sensibly dilated behind, broadly parabolic at apex, finely 

 but somewhat strongly and moderately densel}^ punctate. Length 

 2.25-2.4 mm.; width 0.9-1.0 mm. 



Texas. The above outline is taken from the female, in which 

 sex the fifth ventral is rather strongh' rounded at apex ; but the 

 male does not greatly differ, having the head distinctl}', and the 

 prothorax slightly larger, with the fifth ventral short and broadly 

 sinuato-truncate at apex, and the genital segment broadly im- 

 presso-canaliculate along the middle, with the apex apparently 

 arcuato-truncate. This species also resembles Listrus, and has 

 the tibial spines rather feebler than in ^■nc^p^e?^s, but the structural 

 characters place it in Trichochrous without doubt ; it is recog- 

 nizable at once bv the coloration of the lesfs. 



26. T. coiivergeiis Lee— Proe. Acad. Nat. Set., Phila., 1866, p. 352 

 (Pristoscelis). 



Elongate-oval, strongly convex, feebly shining, grayish-black, 

 the elytra broadly- pale flavo-testaceous at the lateral and apical 

 margins ; legs, antennae and oral organs, epistoma and labrum 

 pale rufo-ferruginous, the mandibles and palpi slightl}' obscure at 

 tip and the eleventh antennal joint somewhat darker; pubescence 

 moderately long, decumbent, pale luteo-cinereous and very coarse, 

 rather sparse anteriorly but dense on the elytra, though not con- 

 cealing the surface. Head three-fourths as wide as the protho- 

 rax, the e3'es large and prominent ; punctures rather fine and 

 sparse, the interspaces smooth ; pubescence conspicuous ; anten- 

 nae about as long as the prothorax, rather stout but scarcely in- 

 crassate, compact, the outer joints strongly transverse, fifth ou\y 

 very feebly dilated. Prothorax two-fifths wider than long, sub- 

 parallel and broadly rounded but with the sides convergent and 

 straight toward apex, the latter arcuate and much narrower than 

 the base ; disk finely and obsoletel}' granulato-reticulate, finely 

 and sparsely punctate, the sculpture if anj'thing not as strong 

 toward the sides as in the middle. Elytra two-thirds longer than 

 wide, only slightly more than twice as long as the prothorax and, 

 at base, distinctly wider ; sides apparently very slightly conver- 

 gent from base to apex, straight ; apex evenh* rounded ; punc- 

 tures not very coarse but strong and rather close-set. Length 

 3.3 mm.; width 1.2 mm. 



