382 PROCEEDTK'GS OF THE NATIONAL MUSEUM vol.94 



at each side; striae finely, closely punctured, the first strongly im- 

 pressed, second and third weakly impressed, lateral striae not at all 

 impressed, interspaces smooth, scarcely rugulose near base, with a few 

 fine, uniseriate punctures; declivity gradually sloping, suture elevated, 

 first striae impressed as on disk. Last tergum pale yellow, with short, 

 fine hairs. 



Female. — Slightly smaller (1.85 mm. long) and slightly slenderer; 

 frons (fig. 24) convex above, transversely impressed between bases of 

 antennae, median line indefinitely elevated, surface subopaque, finely, 

 distinctly reticulate, with sparse, fine, indistinct punctures bearing 

 short, fine, inconspicuous hairs. 



Type locality. — Costa Rica. 



Host. — Mahogany (hybrid?) 



Type inaterial. — Holotype, allotype, and 5 paratypes, U.S.N.M. 

 No. 56559. 



The type series was intercepted at the New York Quarantine Sta- 

 tion in logs of hybrid (?) mahogany. May 18, 1941. 



Two specimens taken from cedar logs from Costa Eica at the same 

 quarantine station are similar in size, proportions, and sculpture, but 

 are nearly uniformly light reddish brown. They are believed to be 

 specimens of the same species that have not yet attained their full 

 coloration. 



HEXACOLUS LEVIS, new species 



Plate 16, Figitre 25 



Female. — Dark reddish brown, unicolorous ; 2.2 mm. long, 2.33 times 

 as long as wide. 



Frons weakly convex above, subopaque, reticulate, with very sparse 

 punctures; impressed between bases of antennae, with a few larger 

 punctures ; epistoma shining ; hairs very fine, short, and scanty. Eye 

 of moderate size, facets rather small, inner line entire. Antenna 

 notably shorter than in Eexacolus swieteniae, new species ; scape club- 

 shaped but slenderer, 2.36 times as long as funicle and about twice as 

 long as club, which is nearly as wide as long, without sign of a septum. 



Pronotum as long as wide, widest near base, posterior outline very 

 feebly sinuate, feebly margined only near the slightly rounded poste- 

 rior lateral angles, sides sharply margined from base to middle, weakly 

 arcuately convergent to beyond middle, broadly rounded in front; 

 surface subshining, glabrous, finely, distinctly reticulate, with very 

 fine punctures, sparsely arranged, no granules or asperities present. 



Elytra distinctly wider than pronotum and 1.79 times as long, 1.57 

 times as long as wide ; widest near base ; base weakly sinuate, margined 

 toward sides; sides nearly straight and subparallel on anterior two- 

 thirds, narrowly rounded behind, extreme tip emarginate at suture, 



