North Amei'ican Species of Trogophloeus. 351 



■widest near the apex, where the sides are narrowly rounded and coarc- 

 tate to the apical angles, which are laterally prominent and minutely, 

 feebly dentiform, moderately convergent and feebly arcuate to the base, 

 which is feebly arcuate, fully four-fifths as wide as the disk and slightly 

 narrower than the apex; the latter broadly and distinctly arcuate through- 

 out the width; disk not distinctly impressed, but feebly tumid along 

 the middle toward base, coarsely and very sparsely punctate. Elytra 

 one-half wider and four-fifths longer than the prothorax, slightly 

 longer than wide, feebly impressed near the suture toward base, rather 

 coarsely and very sparsely punctate, the punctures slightly smaller 

 than those of the pronotum, but deeper and equally sparse. Abdomen 

 distinctly narrower than the elytra; sides nearly parallel and straight; 

 border rather narrow and deep; surface feebly reticulate, finely, rather 

 sparsely punctate, the punctures distinctly subasperate. Legs moderate. 

 Length 3.2 mm. 



California (Truckee, Nevada Co. 1). 



A very distinct species in its somewhat robust form, small 

 prothorax, coarse, very sparse punctures, black, robust antennae 

 and distinctly asperate abdominal punctures, this last character 

 being of very unusual occurrence. The tempora are very broadly 

 ^nd feebly arcuate, and, as the eye is but very slightly promi- 

 nent, there is less of an emargination between the eye and tem- 

 pus than is usual in this part of the group. 



25 T. pliloeoporinus Lee— Trans. Am. Ent. Soc, VI., p. 246. — 

 Slender, rather convex, castaneous; abdomen piceous-black; legs pale 

 rufo- testaceous; antennae same toward base, more infuscate toward 

 apex; pubescence rather coarse, short, very sparse; integuments shining. 

 Head very slightly narrower than the prothorax, slightly wider than 

 long, rather convex, polished, very coarsely and sparsely punctate, the 

 punctures wanting in the middle; prominences moderate; antennae not 

 very robust, about as long as the head and prothorax, rather abruptly 

 and moderately clavate; joiuts two to four almost uniformly and very 

 rapidly decreasing in length, the former slightly robust and nearly 

 twice as long as the latter, which is scarcely as long as wide, tenth dis- 

 tinctly wider than long; eyes very small, rather finely faceted, very 

 feebly convex, not very prominent; tempora as long as the eye and 

 about equally prominent, broadly rounded. Prothorax widest at an- 

 terior third, where the sides are obtusely subangulato and very slightly 

 rounded, thence convergent and straight to the base, and slightly less 

 convergent and feebly arcuate to the apical angles, which are obtuse 

 and not rounded; basal slightly rounded; base broadly arcuate, scarcely 

 three-fourths as wide as the disk and distinctly narrower than the apex; 

 ihe latter truncate; disk two-fifths wider than long, extremely ob- 



