490 BULLETIN 03, ITNTTED STATES NATIONAL MUSEUM. 



The abdominal intercoxal process is slightly transverse, about a 

 third of its width broader than the metasternal salient and equal in 

 length to the post-coxal part of the first ventral segment; second seg- 

 ment is as long as the third and fourth taken together, and nearly 

 three times as long as the fourth. 



The tarsi are rather short and slender. 



Tarsal formula : 



Pro. Meso. Meta. Metatibise. 



IVIale.— ],V 1^ 1 ^ 'Sh 



Female.— 1! U If 3§ 



TROGLODERUS TUBERCULATUS, new species. 



Elongate, oblong-oval in outline, twice as long as wide, integuments 

 dense and opaque, pronotum tuberculate; elytral costfie acutely ele- 

 vated and subserrulate, apex bituberculate. 



Head less than twice as wide as long, plane, interocular region 

 with three impressions, two lateral and one median, intervening sur- 

 face convex; epistoma moderately prominent and feebly convex, con- 

 tinuously so with the supra-antennal convexities, frontal suture not 

 evident, but indicated by the rather suddenly convex epistoma ; sur- 

 face punctato-tuberculate. Antennw short, evidently not reaching be- 

 3^ond the prothorax, feebly compressed and somewhat clavate, third 

 joint about equal to the next two taken together, fourth and fifth 

 about as wide as long, sixth and seventh evidently just the least wider 

 than long, eighth feebly transverse, nintli and tenth distinctly so, 

 eleventh small, narrower, and about as long as wide, orbiculo-ovate. 



Pronotum widest at the middle, somewhat explanate at the sides, 

 one-half wider than long; disc moderately convex, distinctly arcuately 

 declivous at the apical angles, rather densely tul)erculate, tubercles 

 small and rounded, with two deep oval foveas occupying the whole of 

 the median line and about a third of the width, the fovea; limited 

 laterally by raised and rounded sides and separated by a similar 

 transverse convexity, the concavity of each reaching the apical and 

 basal margins, respectively; apex deeply emarginate in circular arc 

 (viewed from the front), the emargination ai)pearing angulate 

 laterally when viewed from above, without a bead; .sides evenly, 

 broadly, and rather strongly arcuate, (piite suddenly sinuate at basal 

 tenth, thence briefly straight aiul almost paralk'l to base, margin 

 subserrulate; hasc^ transverse, witliout bead; apical angles subacute, 

 triangular, stout, and anterioi-ly ])romiiienl : basal angles minute, 

 suba(;ute and feebly ])r()niinent }K)steri()rly. 



I*ropleu7'w moderately convex antero-poslcriorly and more or less 

 concave between the somewhat explanate sides of the pronotum and 

 the acetabular convexities, iri'cgularly granulate and more or less 

 ruffulose. 



