1897] ENTOMOLOGICAL NEWS. 155 



tridentate in front; last joint of palpi feebly dilated, subtruncate 

 at apex; from the insertion of the antennae extend deep, sharply 

 limited grooves obliquely to beneath the hind angles and con- 

 tinue on the thorax beneath the front angles as a rounded cavity 

 for the reception of the antennae; genae beneath the groove 

 prominent, spiniform; antennae longer than the head, lo-jointed, 

 first joint a little thicker, somewhat longer than broad, second to 

 seventh compactly placed, increasing slightly in width, the second 

 as long as broad, a little longer than the third, eighth to tenth 

 more loosely articulate, forming a subserrate club, eighth and 

 ninth strongly transverse, tenth rounded, subtruncate at apex. 

 Thorax slightly longer than broad, inside the depressed margins 

 as broad as the head; apex truncate; side margins more strongly 

 explanate in front, broadly sinuate at the middle, the edge re- 

 flexed; angles obtuse; base obliquely truncate each side, broadly 

 lobed at the middle, the lobe depressed, truncate at apex, limited 

 by a short, obtuse, oblique elevation each side; scutellum very 

 small, triangular. Elytra as long as head and thorax together, 

 scarcely wider than thorax ; base deeply emarginate ; scutellar 

 region depressed; humeri very prominent, embracing the base 

 of thorax; lateral margins undulating, narrowly depressed, with 

 an acute reflexed edge; epipleurae broad at base, gradually nar- 

 rowed behind and not reaching the apex; pygidium entirely con- 

 cealed; prosternum moderately broad between the coxae, strongly 

 dilated behind them, flat and truncate at apex; middle coxae 

 moderately separated, the cavities open externally; metasternum 

 very long and wide, somewhat convex, episterna narrow, epimera 

 concealed; posterior coxae small, rounded ; intercoxal process 

 very broad, squarely truncate. The first four abdominal seg- 

 ments decreasing rapidly in length, the third and fourth without 

 coriaceous margin. Legs short, femora slightly clavate; tibiae 

 slender, gradually broader to apex; spurs minute; tarsi short, 

 narrow, beneath sparsely setose, not canaliculate ; basal joints 

 subequal in length; last joint as long as the three preceding ones 

 together. 



Type: T. singularis new species. 



This genus seems most nearly allied to the Nyctoporini by 

 the structure of the head and coxae. The antennal grooves and 

 the form of the antennae themselves will, however, exclude it 



