88 Coleopterological Notices. 



than long; sides parallel, just visibly arcuate; apex and baSe equally and 

 feebly arcuate ; apical angles very narrowly, basal more broadly, rounded ; 

 disk feebly convex, somewhat coarsely and sparsely punctate, with two strong 

 parallel impressions in the middle, also strongly impressed at the lateral edges 

 in the basal half, and more narrowly so in the anterior half, the edge being 

 explanate or very feebly reflexed. El.ijfra slightly longer than wide, one-sixth 

 wider and four-fifths longer than the prothorax ; sides parallel and straight ; 

 disk rather coarsely and sparsely punctate, the punctures separated by from 

 once to twice their own widths, and rather closer than those of the head and 

 prothorax. Abdomen long, linear, slightly narrower than the elytra ; sides 

 nearly straight, parallel ; border rather wide, very shallow ; surface finely 

 reticulate, finely, not densely, and subasperately punctate, the punctures not 

 sparser but much finer than those of the head ; apical margin of the sixth 

 segment narrowly free from punctures, smooth and jaolished. Le(/s short. 

 Length 1.1 mm. 



Texas (Austin 1). 



A remarkably distinct species, deeicleclly aberrant in the strong and 

 complex impressions of the pronotum, and unusually robust anlennsfi. 

 The punctuation is very much sparser than in any other species 

 known to me. 



T. validllS n. sp. — Slender, depressed, linear, black throughout ; elytra 

 slightly piceous ; tibiie slightly paler, flavo-piceous ; integuments rather 

 shining. Head scarcely as long as wide, flattened above, vertex in the middle 

 just behind the line of antennal insertion more strongly convex; tubercula- 

 tions rather large, not very strong; surface coarsely, deeply and rather 

 densely punctate ; eyes rather small, feebly convex ; tempora parallel, feebly 

 arcuate, as prominent as the eye and nearly as long ; antennse slightly longer 

 than the head and prothoi-ax, robust, distinctly incrassate, second joint fully 

 as long as the next two, third obconical, very slightly longer than wide, fourth 

 and sixth smaller, distinctly transverse, fifth larger, very slightly wider than 

 long, outer joints rather distinctly transverse, eleventh robust, ovoiilal, not 

 one-half longer than wide, rather abruptly pointed. Prothorax equal in width 

 to the head and distinctly shorter, fully one-half wider than long ; sides 

 feebly convergent from near the apex to the base, and scarcely visibly 

 arcuate ; apical angles rather broadly rounded ; apex very feebly arcuate ; 

 base strongly arcuate throughout the width, the angles obtuse and distinctly 

 rounded ; disk feebly convex, rather coarsely, deeply and densely punctate, 

 with two large wide very feeble longitudinal impressions in the middle, with- 

 out lateral impressions. Elytra one-third wider than the prothorax, distinctly 

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

 than the head and prothorax together ; sides parallel and almost perfectly 

 straight ; disk depressed, rather coarsely, deeply and densely punctate, the 

 punctures rather smaller than those of the pronotum and separated by nearly 

 one-half their own widths. Abdomen rather distinctly narrower than the 

 elytra ; sides parallel and straight ; border narrow, moderate in depth ; seg- 



