334 A Preliminary Monograph of the 



lustre subalutaceous; impressions feeble. Elytra quadrate, very slightly 

 wider and one-half longer than the prothorax, each rather strongly im- 

 pressed along the suture; punctures fine and very dense, separated by 

 less than their own diameters. Abdomen parallel, distinctly narrower 

 than the elytra ; sides feebly arcuate ; border moderate ; surface 

 feebly convex, very finely and densely punctate, feebly shining. Legs 

 slender. Length 2.6 mm. 



Mexico (Gruanajuato 1). Dr. Eug. Duges. 



The antennge are missing, but they are probably flavate, as 

 seen in the remaining basal portions, and of the same general 

 structure as in the other representatives of this group. The 

 species resembles dentiger, but is more robust, with longer, 

 larger elytra and slightly less dense punctuation, especially on 

 the abdomen. 



This species is not mentioned by Dr. Sharp in the Biologia 

 Centrali- Americana. 



7 T. texanus n. sp. — Rather slender, black; antennae fuscous, 

 paler toward base; legs throughout flavate: pubescence very short, fine, 

 rather inconspicuous; integuments slightly shining. Head narrower 

 than the prothorax, very finely, densely punctate, subalutaceous; an- 

 tennal tuberculations short, rather feeble; antennae robust, distinctly 

 longer than the head and prothorax together; joints two to four decreas- 

 ing uniformly and not very rapidly in length, second more than twice 

 as long as wide, tenth fully as wide as long; club gradual and not strong; 

 eyes large, slightly prominent; tempora but slightly more than one- 

 third as long, narrowly rounded behind. Prothorax widest at anterior 

 third, slightly less than one-half wider than long; sides very narrowly 

 rounded at the greatest width, thence strongly convergent and broadly, 

 feebly sinuate to the base, rather less convergent and very feebly arcuate 

 to the acute, prominent and anteriorly projecting apical angles; base 

 broadly arcuate, two-thirds as wide as the disk, much narrower than 

 the apex; the latter transverse, broadly, feebly arcuate, except near 

 the angles, where it is feebly sinuate; disk finely, very densely and 

 subconfluently punctate, feebly shining; impressions rather distinct. 

 Elytra slightly wider and nearly one-half longer than the prothorax, 

 scarcely as long as wide, each feebly impressed along the suture; punc- 

 tures fine, dense, separated by about their own widths; surface shining. 

 Abdomen parallel, slightly narrower than the elytra; border rather 

 thick and moderately deep; surface feebly convex, shining, very 

 minutely, densely punctate; pubescence very fine and inconspicuous. 

 Legs slender. Length 2.8 mm. 



Texas (Galveston 11). 



