NEW SPECIES OF BARK BEETLES—BLACKMAN 179 
sides with posterior third nearly straight or feebly arcuate, distinctly 
converging, then strongly, arcuately narrowed and constricted, rather 
narrowly rounded in front, with margin indefinitely serrate; dorsal 
contour nearly evenly arcuate from base to apex, without hump or 
transverse impression ; anterior half and sides with subconcentric rows 
of very low, wide asperities, extending nearly to base at sides, posterior 
disk with distinct punctures and fine granules; median line wide, 
impunctate, scarcely elevated; hairs very short and fine on posterior 
disk, longer and coarser on sides and anterior area. 
Elytra slightly wider than pronotum and 1.67 times as long, 1.56 
times as long as wide, widest behind middle; sides subparallel, mod- 
erately narrowly rounded behind; surface brightly shining, strial 
punctures moderately coarse, in irregular rows, only the first stria 
impressed; interspaces flat, somewhat rugulose, punctures similar to 
those of striae but less numerous; sides with punctures more or less 
confused; vestiture scanty. Declivity sloping, shallowly sulcate at 
each side of the moderately elevated suture; first stria rather strongly 
impressed, punctures obsolescent; second stria slightly impressed, 
these and intervening second interspace forming a sulcus at each side; 
lateral elevations moderately high, finely, rather roughly punctured; 
vestiture of rather sparse, moderately short hairs. 
Male.—Slightly smaller and stouter (2.07 mm. long, 2.3 times as long 
as wide) ; frons convex, shining, roughly but finely punctured, feebly, 
transversely impressed well above epistoma; pronotum more strongly 
constricted in front of middle, with asperities slightly stronger; elytral 
declivity with sulci narrower and deper and lateral elevations higher 
than in female. 
Type locality —Boquete, Panama. 
Additional locality—San José, Costa Rica; Queretaro, Mexico. 
Host.—Seeds of Persea pittieri and P. americana. 
Type material_—Holotype, allotype, and 17 paratypes, U.S.N.M. 
No. 55998. 
The holotype, allotype, and 5 paratypes bear the labels “Ex seed 
Persea n. sp., Boquete, Panama, E. A. Schwarz, collector”; 2 para- 
types, “Collected in seeds of Persea pittieri, from San José, Costa Rica; 
Washington, at quarantine, May 6, 1914, E. R. Sasscer, collector”; 
10 paratypes obtained from seeds of avocado, from Queretero, Mexico, 
by J. D. Neuls, October 10, 1912. 
Genus NEODRYOCOETES Eggers 
Neodryocoetes Eacrrs, Trav. Lab. Ent. Mus. Nat. Hist. Nat. Paris, Mem. orig. 1, 
p. 9, 1933; Rev. Ent., vol. 6, pp. 388-392, 1936.—Scuept, Arch. fiir Naturg., 
vol. 7, pp. 177-180, 1938; Anal. Esc. Nac. Cienc. Biol, México, vol. 1, p. 346, 
1940. (Genotype, Neodryocoetes hymenaeae Eggers. Monobasic.) 
