4230 PROCEEDINGS OF THE NATIONAL MUSEUM Von. 92 
Male.—Black, with elytra reddish brown; 1.5 to 2.0 mm. long, about 
1.86 times as long as wide; allied to swainei. 
Frons black, moderately shining; broad between eyes, frontal rec- 
tangle about 0.71 as long as wide, epistomal lobe short; broadly, deeply 
concave (deeper than in swainez), with concavity shining and glabrous, 
with a few obsolescent punctures; median carina strongly elevated, 
extending from epistomal margin to depth of concavity; sides finely, 
densely granulate-punctate, median area above cancavity roughly 
punctured; vestiture of fine, rather short hair, inconspicuous except 
in profile, longer on epistoma. Eye more than three times as long as 
wide, more than half divided by a very wide U-shaped emargination. 
Antenna with club less than twice as long as wide, first and second 
sutures nearly transverse, third suture strongly oblique. 
Pronotum about 1.25 times as wide as long; sides nearly straight 
and feebly converging on posterior three-fifths, then strongly 
arcuately narrowed to lateral constriction just posterior to broadly 
rounded front margin; surface black, moderately shining, rather 
strongly, transversely impressed behind anterior margin; disk very 
deeply, moderately finely, rather roughly punctured, not granulate 
but with narrow interstices very finely reticulate; punctures finer and 
closer anterior to impression, with very fine granules; sides with 
punctures closer than on disk, granulate; median line slightly elevated 
on posterior third; lateral calli nearly lacking; vestiture of short and 
fine hairs on entire disk, slightly longer in front and moderately 
longer on sides. 
Elytra wider than pronotum, about 1.22 times as long as wide; sides 
subparallel on anterior two-thirds, very broadly rounded behind; 
surface moderately shining; striae moderately strongly impressed, 
moderately narrow on disk, wider on sides, punctures small, rather 
close, larger on sides; interspaces wide, convex, distinctly punctate, 
scarcely granulate, with a sparse, uniseriate row of small sharp asper- 
ities on all interspaces, becoming larger posteriorly on first, third, and 
alternate interspaces on both disk and sides; vestiture consisting of 
moderately numerous short, fine hairs. Declivity with strial punc- 
tures about as on disk, first and third interspaces strongly convex, 
finely punctured, each with a row of sparse, moderately small, sharp, 
dark-colored serrations; fifth, seventh, and ninth interspaces finely 
punctured, each with a few small, sharp asperities; second interspace 
flat, slightly narrower than on disk; vestiture consisting of short, fine 
hairs and more numerous, flat, scalelike hairs. Anterior face of 
mesosternum precipitous. 
Female.——Similar to male in habitus, frons wider between eyes, 
frontal rectangle about 0.61 as long as wide, with a strong, arcuate, 
transverse impression and a rather short, fine, elevated median carina; 
