March iSg?.] BeUTENMULLER : COLEOPTERA N. E. AMERICA. 39 



sinuate behind, angles rectangular and with a short carina, dor- 

 sal line moderately distinct, before the base are three punctures and 

 at each side foveolate ; elytra oblong-oval, a little broader than the 

 thorax, bipunctate, sutural stria, deep and entire, second obliterated at 

 apex, third less distinct and lateral stria obliterated. Length, 3.25 mm. 



Habitat: New Jersey, District of Columbia and westward. Al- 

 lied to T. tripunctatiis and vivax, but is more convex than the first and 

 has the sides of the thorax much more rounded than the second. 



T. xanthopus Dej. — Blackish brown, shining, antennae at base 

 and legs testaceous ; thorax transversely subquadrate, foveolate on each 

 side posteriorly, angles rectangular ; elytra ovate, two impressed punc- 

 tures, two dorsal striae distinct, external stri?e obsolete. Length, 1.75 mm. 



Habitat : New York, New Jersey and westward. 



T. ferrugineus DeJ. — Rufo-piceous, elytra paler at the sides, an- 

 tennae and legs testaceous ; thorax strongly rounded at the sides before 

 the middle, straight behind, disc subconvex, dorsal line fine, posterior 

 transverse impression deep with three large punctures at the middle; 

 at the angle deeply impressed ; elytra convex, sutural stria deep and 

 entire, second stria abbreviated at each end, third slightly evident with 

 two punctures, marginal stria broadly interrupted. Length, 2.25 mm. 



Habitat: Massachusetts, New York, New Jersey, Ohio, Illinois, 

 Arkansas, Colorado. 



T. incurvus Say. — Piceous, elytra with a honey yellow line from 

 the humeri to the apex, where it is a little dilated, antennas honey yel- 

 low ; under side piceous; legs honey yellow; thorax a little con- 

 tracted gradually to the base, dorsal line slight, basal transverse line 

 deep and wrinkled; elytra polished, vvith a deep sutural stria, second 

 stria obsolete and an interrupted stria on the lateral margin; a 

 dilated indentation each side of the scutel, and a smaller one on the 

 humerus. The dilated vitta on each side curves near its tip a little 

 towards the suture. Length, 2 mm. 



ZraZ-Z/d-/ .• N. E. America. Common; in the hills of the red ant. 



T. nebulosus Chd. — Closely allied to T. incurvus, but is less con- 

 vex, and the thorax is less distinctly rounded at the sides and less re- 

 tracted behind the middle. 



Habitat : Pennsylvania. 



T. granarius D?j. — Pale rufo-piceous, shinning, antennae at base 

 and legs testaceous : thorax strongly rounded at sides, and retracted 

 behind the middle, hind angles strongly obtuse, not rounded, basal 



