154 Coleopterological Notices, III. 



moderate in length, very slender, the external side feebly, evenly arcuate, the 

 internal pectinate in apical two-thirds, the denticles very fine, short, five or 

 six in number. Genital armature of the male deeply hilobed. 



This genus while more closely allied to Isomira than to any other 

 here noticed, possesses also many elements suggestive of Capnochroa 

 and Andrimus, especially the general form of the body, and the 

 dilated anterior tarsi of the male. The coarser sculpture of the 

 upper surface and slightly exposed humeri, are also characters 

 reminding us of Andrimus, while the form of the head and tendency 

 to obliteration of the elytral striae are characteristic of Isomira. 

 The genital armature of the male is similar to that of the latter 

 genus. 



I have seen only a single species which may be defined as follows : 



T. an gust us n. sp. — Elongate-oval, rather convex, polished and pale 

 brownish-castaneous throughout ; pubescence short, coarse, subrecumbent, 

 with a few short erect hairs especially toward apex, not dense. Head some- 

 what finely but deeply, moderately densely punctate ; eyes rather small ; 

 antennae slender and filiform in both sexes, the joints slightly shorter and 

 more obconical in the female than in the male. Prothorax one-half wider than 

 long, the apex subtruncate, just visibly arcuate, two-thirds as wide as the 

 base, the latter transverse, the sinuations broad and extremely feeble ; angles 

 right not at all blunt ; sides broadly arcuate anteriorly, becoming nearly 

 parallel and straight in more than basal half: disk feebly convex, quite 

 coarsely, deeply and densely punctate, with an elongate-oval impression just 

 before the scutellum ; basal foveas broad but distinct. Elytra about four times 

 as long as the prothorax and one-fourth wider, feebly dehiscent very near the 

 apex, gradually, acutely ogival behind ; sides parallel and nearly straight in 

 basal two-thirds ; humeri obliquely rounded externally to the prothorax ; disk 

 with series of small approximate punctures, which are obliterated and con- 

 fused with those of the intervals except toward the suture, the series extremely 

 feebly impressed externally but deeply so throughout the length near the 

 suture ; intervals coarsely, confusedly and rather densely punctate, the punc- 

 tures as large as those of the series. Abdomen minutely, rather sparsely punc- 

 tate. Legs rather short and robust, the basal joint of the hind tarsi nearly as 

 long as the remainder. 



Male. — Eyes separated by one-half more than their own width ; antennas 

 three-fifths as long as the body, the third joint short, less than two-thirds as 

 long as the fourth; anterior tarsi distinctly dilated, the intermediate sub- 

 dilated ; fifth ventral segment truncate at apex, the truncation broadly, feebly 

 sinuate throughout ; genital armature deeply bilobed, the lobes sparsely setose. 



Female. — Eyes separated by three-fourths more than their own width ; 

 antennas one-half as long as the body, the third joint fully three-fourths as 

 long as the fourth ; anterior tarsi simple ; genital armature not visible in the 

 type. 



Length 5.5-6.0 mm. ; width 2.0-2.1 mm. 



