442 PROCEEDINGS OF THE NATIONAL MUSEUM Vou. 92 
as long as wide, about half divided by a U-shaped emargination, wider 
than usual. Antenna with club slightly less than twice as long as 
wide, first two sutures oblique, third suture very strongly oblique. 
Pronotum about 1.13 times as wide as long, widest near posterior 
angles; sides distinctly arcuate, constricted just behind very broadly 
rounded anterior margin; surface piceous, shining, moderately finely 
and closely, very deeply punctured on disk, more finely and closely 
punctured in front, more roughly punctured but not granulate at 
sides; lateral calli indistinct or lacking; median line lacking or very 
faint ; feebly, indefinitely impressed at each side near posterior border ; 
hairs fine, notably longer at each side anterior to lateral call. 
Elytra wider than pronotum, about 1.33 times as long as wide; sides 
subparallel on anterior two-thirds, very broadly rounded behind; 
surface shining; striae deeply imrpessed, of moderate width, strial 
punctures close, moderately coarse ; interspaces more than twice as wide 
as striae, convex, rugulose-granulate, granules confused anteriorly, be- 
coming larger and uniseriate posteriorly; punctures fine, giving origin 
to short, fine, inconspicuous hairs. Declivity (pl. 39, figs. 18, 18a) 
more abrupt than usual; declivital serrations very coarse and dark; 
first interspace with three to five dark, coarse serrations only at top of 
declivity, the apical four-fifths nearly flat, shining, finely, very roughly 
punctured; second interspace narrower than first and third, nearly 
flat, shining, with a few punctures; third interspace elevated, with very 
coarse, dark, closely placed serrations; fifth, seventh, and ninth inter- 
spaces moderately convex, each with three to six smaller, more widely 
spaced serrations; hairs more abundant than on disk, short, 
rather stout and numerous on first and second interspaces, more scanty 
elsewhere. Mesosternum nearly flat, with anterior portion slightly 
oblique. 
Female—Similar to male in general habitus; frons wider than in 
male between eyes, frontal rectangle about 0.64 as long as wide, convex, 
densely granulate-punctate throughout, with a strongly elevated sharp 
median carina on lower half; elytral declivity (pl. 39, figs. 12, 12a) 
with first and third interspaces strongly elevated and rather coarsely 
serrate, second interspace flat, distinctly narrower than first or third, 
closely, finely punctured; fifth, seventh, and ninth interspaces each 
with a few serrations, smaller than on third but of moderate size; all 
interspaces from suture to seventh densely clothed with short, broad, 
scalelike, cinereous hairs, with a few hairlike setae arising from bases 
of serrations. 
This species has never been adequately described, but the original 
very brief description was supplemented by a good illustration of 
each sex, by which the species can be readily recognized. The series 
of this species contains a number of specimens which were before 
