60 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



carina was only vaguely indicated in his specimens, but in some speci- 

 mens it is quite pronounced. 



Pronotum moderately convex, rather evenly, coarsely punctate; the 

 punctures separated by a distance of 1 to 3 times their own diameter, 

 each pimcture bearing a moderately long, reddish seta and overhung 

 anteriorly by a small shining tubercle; the tubercles quite pronounced 

 anteriorly on the pronotal hump; surface otherwise very finely alu- 

 taceous. Entire pronotum poorly but distinctly margined; pronotal 

 protuberance in its greatest development extending over the head to 

 a point above the posterior carina, its anterior edge slightly emargi- 

 nate and with a bilobate appearance, the lateral rounded angles 

 slightly reflexed anteriorly; the protuberance gradually narrowed 

 anteriorly, being widest at its base. Elytral striae shining and vaguely 

 punctate; the intervals (except the sutural) irregularly, biseriately 

 tuberculate, the base of each tubercle with a small puncture bearing 

 a moderately long, reddish seta, the surface between finely alutaceous 

 and with an opaque appearance. 



Pygidium very coarsely punctate throughout, each puncture bearing 

 a fuie reddish seta; basal half of pygidium finely alutaceous, apical 

 half becommg smooth and shmy. Ventral surfaces brownish black 

 to black, antennal club varying from yellowish brown to black. 

 Metasternum, except in the vaguely depressed median line, with 

 large, coarse punctures, each puncture bearing a long, reddish seta; 

 sm-face alutaceous between the lateral pimctures. Abdominal seg- 

 ments, excluding the first, each with a row of long, reddish setae along 

 their basal edge arising from large, rather poorly defined punctures; 

 the remaining sm'face of abdomen shiny but finely alutaceous; last 

 abdominal segment emarginate, being narrowed near the median line. 

 The long, conspicuous setae of the thorax and abdomen are quite 

 characteristic. Anterior tibiae long, slender, and arcuate anteriorly, 

 the outer margin crenate above and between the foiu" teeth; apex of 

 tibia with a pencil of yellowish hairs. Middle and hmd legs not greatly 

 elongate; surface of the femora with a few scattered, coarse punctures, 

 each bearing a long reddish seta. 



Male minors. — Length 4.4 nnn., width 2.6 mm. Differing from 

 the male majors in the following respects: Clypeal carina vaguely 

 mdicated; carina of vertex pronounced, not vague as it often is in male 

 majors; pronotal protuberance small, evenly rounded, without any 

 emargination ; foretibiae not greatly elongate but still slender; pencil 

 of hairs scarcely mdicated; in other respects similar to male majors. 



Females. — Length 4.8 to 5.3 mm., width 3.1 to 3.3 mm. Clypeus 

 with anterior edge poorly reflexed and distinctly emarginate : surface 

 coarsely, densely punctured, somewhat rugose and shining, densely 

 punctured. Clypeal carina distinct, highest medially; carma of vertex 



