NEW SPECIES OF BARK BEETLES—BLACKMAN 225 
Frons very short and wide, less than half as long as wide, convex 
above, flattened below on less than semicircle, brightly shining, densely, 
minutely punctured below with very numerous, very fine, yellow hairs 
of moderate, nearly uniform length. Eye very large, coarsely faceted, 
nearly half divided by a sharp V-shaped emargination. Antenna 
(fig. 86) with club 1.25 times as long as wide, 1.35 times as long as 
funicle; first 2 sutures arcuate, with moderately developed, partial 
septum, third suture slightly more strongly arcuate, indicated by setae. 
Pronotum 1.28 times as long as wide, widest behind, posterior out- 
line weakly arcuate, finely, distinctly margined, posterior angles 
scarcely rounded; sides straight and subparallel on more than pos- 
terior half, feebly constricted in front of middle, very broadly rounded 
in front, with anterior margin bearing very wide, rather low serra- 
tions; anterior area with very broad, low asperities, arranged in nearly 
regular, concentric rows (but not fused at bases), hairs numerous and 
moderately short; summit moderate, slightly in front of middle, with 
transverse Impression posterior to it shallow ; posterior area subopaque, 
distinctly reticulate, finely, shallowly, not closely punctured; median 
line very narrow, slightly elevated; disk glabrous; sides slightly more 
shining, with a few hairs near lateral margin. 
Elytra as wide or pronotum, 1.85 times as long as wide, 1.44 times 
as long as pronotum; sides nearly straight and feebly converging on 
anterior two-thirds, then more strongly, arcuately narrowed, and ex- 
tended into a short acumination; surface moderately shining, finely, 
indistinctly reticulate; punctures deep, moderately coarse, close, in 
nearly regular rows, only first stria impressed; interspaces narrow, 
flat, with only a few punctures of same size as those of striae; with 
very few erect hairs on disk, longer and more numerous on sides. 
Declivity moderately steeply arched; suture moderately elevated near 
summit, strongly elevated at apex, with a few punctures and setae but 
no granules; first and second striae narrow, strongly impressed, punc- 
tures obsolescent, with intervening second interspace forming fundus 
of sulcus; lateral elevations much higher than suture, punctate, with 
3 large granules in third interspace and a few much smaller granules 
lateral to it; all except second interspace with rather numerous yellow, 
erect setae. 
Male—vVery similar to female in habitus; frons flattened below as 
in female, but with punctures much coarser and much less dense, with 
sparse, short hairs; declivital sulci with coarser punctures and lateral 
elevations higher. 
Type locality —Cano Saddle, Gatun Lake, Panama. 
Host—Unknown. 
Type material—Holotype, allotype, and one paratype, U.S.N.M. 
No. 56015. 
