330 A Preliminary Monograph of the 



subangulate, thence very distinctly convergent and feebly arcuate to the 

 apex, slightly more strongly convergent and very feebly sinuate to the 

 base, which is broadly, very feebly arcuate, three-fourths as wide as the 

 disk and but slightly narrower than the apex, the latter truncate ; apical 

 angles very slightly anteriorly prominent and obtusely subdentiform ;. 

 disk coarsely, deeply, but not very densely punctate throughout ; punc- 

 tures impressed ; basal impression very strong. Elytra very distinctly 

 shorter than wide, distinctly wider at apex than at base, two-fifths 

 wider and one-half longer than the prothorax, impressed near the suture 

 toward base, coarsely but not very densely punctate. Abdomen almost 

 as wide as the elytra ; sides strongly arcuate ; border not very wide but 

 rather deep ; surface coarsely and moderately densely punctate, the 

 punctures smaller and feebler than those of the other portions of the 

 upper surface ; interspaces polished and not at all reticulate. Legs^ 

 moderate. Length 2.8 mm. 



Texas (Austin 2). 



May be distinguished by its pale colors, and strongly punctate 

 surface. The sexual differences in the antennae are not remark- 

 able. 



The type in the cabinet of Le Oonte is from Florida, and is 

 almost devoid of pubescence ; the latter is very easily removable 

 in the species of this group. The description is drawn from the 

 Texan specimens. 



3. T. antliracinus n. sp. — Rather robust, moderately convex, in- 

 tense black throughout, palpi and tarsi slightly piceous ; pubescence 

 moderate in length, rather sparse ; integuments polished. Head dis- 

 tinctly narrower than the prothorax, somewhat coarsely, deeply, mod- 

 erately densely punctate ; prominences well marked ; eyes rather large, 

 convex, somewhat prominent ; the tempora very short, nq,t prominent i 

 nuchal constriction almost obsolete ; antennae distinctly longer than the 

 head and prothorax, slender, club small ; joints two to eight all much 

 longer than wide, two to four decreasing slowly in length, ninth ob- 

 trapezoidal, slightly longer than wide, and distinctly longer than the 

 tenth, which is a little wider than long, eleventh slightly longer than 

 wide, abruptly and finely pointed. Prothorax widest at two-fifths its 

 length from the apex, where the sides are very obtusely subangulate 

 and narrowly rounded, thence feebly convergent and feebly arcuate to 

 the apex, more strongly convergent and feebly sinuate to the base, 

 which is but very slightly narrower than the apex, the latter truncate ; 

 apical angles not distinctly rounded ; disk scarcely one-third wider than 

 long, somewhat coarsely and haoderately densely punctate throughout ; 

 basal impression strong; surface behind it arcuately tumid. Elytra 

 distinctly wider than long, nearly one-half wider and two-thirds longer 



