454 PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 92 
PHLOEOSINUS DELEONI, new species 
Male.—Black with elytra reddish to piceous brown; 2.86 to 3.22 
mm. long, holotype 3.2 mm. long, nearly exactly twice as long as 
wide; allied to dentatus, etc. 
Frons moderately wide between eyes, frontal rectangle about 0.70 
as long as wide, epistomal lobe very short; surface black, rather 
feebly shining; densely and rather coarsely punctate-granulate; very 
widely, moderately deeply, transversely concave, with a median 
carina on lower half, most strongly elevated just above epistomal 
margin, carina often continued above concavity as an indefinitely 
elevated area; hairs fine and short, rather more numerous than usual. 
Eye more than three times as long as wide, more than half divided by 
a narrow V-shaped emargination. Antenna with club slightly more 
than twice as long as wide, sutures all oblique. 
Pronotum about 1.16 times as wide as long, widest near posterior 
angles; sides strongly arcuate and converging to lateral constriction 
just back of broadly rounded front margin, distinctly impressed 
across dorsum; surface black, moderately shining, very deeply, 
densely, moderately finely but roughly punctured, punctures often 
arranged in irregular longitudinal lines of from 3 to 12 or more 
with cross partitions below level of surface; sides punctate-granulate; 
median line slightly elevated, impunctate in middle third; lateral 
calli rather small; hairs short, fine, and inconspicuous. 
Elytra slightly wider than pronotum, about 1.27 times as long as 
wide; sides subparallel on anterior two-thirds, moderately broadly 
rounded behind; surface shining, striae deeply impressed, about half 
as wide as interspaces, strial punctures of moderate size and spacing; 
interspaces moderately wide, convex, densely granulate-punctate, 
with numerous asperities, which are confused on anterior disk, but 
become coarsely, rather sparsely uniseriate on posterior third of first, 
third, and alternate interspaces; sides with striae wider and punctures 
coarser, interspaces with asperities less numerous on anterior half, 
uniseriate behind as on disk; hairs on disk and sides moderate in 
number, short, rather stout, becoming flat and somewhat scalelike 
behind. Declivity with first and third interspaces moderately con- 
vex, each with from four to eight rather widely spaced, sharp, black 
teeth, surface moderately punctured; second interspace wide, nearly 
flat, shining, moderately punctured, devoid of teeth or serrations 
except for one tooth near apex; fifth to ninth interspaces each with 
a few teeth, only slightly smaller than on first and third; declivity 
rather sparsely clothed with scalelike hairs and a few slender setae 
from bases of serrations. Mesosternum rather obliquely declivitous 
in front. 
