382 A Preliminary Monograph of the 



inent. Prothorax one-fourth wider than long, widest at anterior third, 

 where the sides are evenly rounded and coarctate to the apex, moder- 

 ately convergent, and straight thence to the base; the latter feebly ar- 

 cuate, four-fifths as wide as the disk, and very slightly narrower than 

 the apex; the latter feebly arcuate; apical angles obtuse and rather 

 broadly rounded; disk with two very distinct longitudinal arcuate im- 

 pressions in the basal half, minutely and densely punctate, without 

 trace of median impunctate line. Elytra fully as long as wide, one-fourth 

 wider and nearly two-thirds longer than the prothorax, distinctly im- 

 pressed near the suture, except near the apex, finely and densely punc- 

 tate; punctures feeble, twice as wide as those of the pronotum, and 

 separated by about their own diameters. Abdomen parallel, long, linear, 

 slightly narrower than the elytra; sides straight; border moderate; sur- 

 face rather strongly convex, finely, feebly reticulate, minutely and 

 densely punctate. Legs slender. Length 3.3 mm. 



California (Forfc Yuma 3). 



Easily distinguishable by its elongate, slender form, large eyes, 

 distinctly bi-impressed pronotum and many other characters. 



65 T. clecoloratu§ n. sp.— Slender, rather feebly convex, black; 

 elytra pale, rufescent, shaded with darker castaneous toward base and 

 suture; legs and antennae flavate, the latter fuscous near the apex; pu- 

 bescence short and dense; integuments feebly shining. Head distinctly 

 narrower than the prothorax, feebly convex, minutely and very densely 

 punctate; punctures distinct; prominences large and strong; eyes large, 

 convex, and prominent; antennae rather slender, distinctly incrassate, 

 distinctly longer than the head and prothorax; joints two to four, de- 

 creasing uniformly and moderately in length, fourth just visibly longer 

 than wide, tenth almost as long as wide. Prothorax widest at anterior 

 third, where the sides are evenly rounded and coarctate to the apex, 

 moderately convergent, and very feebly arcuate toward base; the latter 

 three-fourths as wide as the disk, and slightly narrower than the apex, 

 which is very feebly arcuate; apical angles obtuse and distinctly round- 

 ed; disk fully one-fourth wider than long, very broadly, rather feebly 

 though distinctly, longitudinally bi-impressed, minutely and densely 

 punctate, without median impunctate area. Elytra fully as long as 

 wide, one-third wider, and nearly three-fifths longer than the prothorax, 

 feebly impressed near the suture, finely, feebly, and densely punctate; 

 punctures scarcely larger than those of the pronotum, but nearly twice 

 as distant. Abdomen distinctly narrower than the elytra, parallel; 

 sides straight; border moderate and rather shallow; surface finely and 

 rather strongly reticulate, minutely and densely punctate. Legs slender. 

 Length 3.0 mm. 



Pennsylvania (Allegheny Co. 3). Dr. Hamilton, 



