DERMESTIDJE 189 



longer than wide, fully as wide as the prothorax and not quite three times 

 as long, rapidly and very obtusely rounded behind; punctures small and 

 rather sparse; under surface convex, deep black and shining, the punc- 

 tures fine and everywhere widely separated, the pubescence short, obscure 

 and inconspicuous; legs small, slender and piceous. Male smaller than 

 the female, with the prothorax more inflated basally and with a little 

 red on the elytra, the antennae of the same type as in inclusa; joints two 

 to six transverse and gradually increasing in size. Length (o 71 9 ) 

 1.8-2.3 mm.; width 1.0-1.2 mm. Missouri (St. Louis). Two examples. 



The only one with which this species can be compared is inclusa 

 Lee., and in that the head and entire under surface are strongly, 

 very densely punctured and dull, not at all as in the present species, 

 where, also, the conspicuous pale lines of inclusa are wanting or 

 greatly reduced. From obsolescens Csy., it differs in its much broader 

 form of body and more gradually formed, or more nearly 5-jointed 

 than 4-jointed, antennal club of the female. 



Trogoderma brunnescens n. sp. Oblong, obtusely rounded before and 

 behind, moderately convex and shining, piceous-black, the entire elytra 

 pale red-brown and crossed by about three somewhat irregular narrow 

 lines of aggregated coarse yellowish hairs, the other vestiture sparse, 

 darker and inconspicuous; head two-fifths as wide as the prothorax, 

 strongly and closely punctate, more finely and sparsely basally, the 

 larger punctures somewhat irregular in form though not densely crowded; 

 antennae short and very stout but with joints three and four unusually 

 small, very short and transverse, four to seven increasing rapidly in size, 

 strongly transverse; prothorax short, distinctly more than twice as wide 

 as long and barely a third as long as the elytra, the sides very strongly 

 arcuate and converging anteriorly, becoming almost parallel basally; 

 punctures minute and sparse, the hairs coarse, sparse, fuscous and in- 

 conspicuous, almost uniform in color; elytra as wide as the prothorax, 

 two-fifths longer than wide, parallel, very obtusely rounded at apex, the 

 punctures rather small, separated by two to three times their diameters 

 and twice as wide as those of the pronotum; under surface convex, in- 

 conspicuously pubescent, the met-episterna and abdomen strongly and 

 closely punctate, the entire metasternum very evenly, finely and loosely 

 punctate. Length (cf) 1.75 mm.; width 1.15 mm. District of Columbia. 



While belonging to the inclusa group, this species does not closely 

 resemble it, being much smaller and narrower, with the three trans- 

 verse lines of elytral pubescence more even. 



Trogoderma scabripennis n. sp. Much larger than the preceding and 

 as broad as inclusa but more elongate, black, the legs and tarsi blackish- 

 piceous throughout, not shining except on the pronotum; ashy elytral 

 pubescence disposed in three bands, the subbasal posteriorly biarcuate, 

 the integument only partially pallescent under the bands, the remaining 

 pubescence obscure in tint; head very densely punctate, rather small in 



