30 PROCEEDINGS OF THE NATIONAL MUSEUM vol.89 



spai*se on anterior portion of disk. Elytral striae fine and rather deep, 

 strial punctures coarse and slightly off center, thus crenating the inner 

 edge of each interval, intervals slightly convex and minutely alutaceous, 

 sparsely and irregularly punctulate. Lateral margin subcarinate, 

 epipleura shining. Pygidial carina with feeble median cusp. Meta- 

 sternum shining, lateral portions finely sculptured near extreme lateral 

 margin, median portion sparsely but not very finely punctured, median 

 groove deep, not abruptly terminated either anteriorly or posteriorly. 

 Abdominal sternites rather coarsely and closely punctured at sides, 

 more sparsely so along median line, basal transverse row of pits on 

 each sternite fine. Anterior femur with perimarginal groove, surface 

 shining, sparsely and finely punctured with a very few very coarse 

 punctures near posterior margin. Posterior femur with groove on 

 posterior margin in apical half, surface very finely and sparsely punc- 

 tulate ; posterior tibia with accessory spine. Length : 4—4,3 mm. 



Type. — In the British Museum. 



Type locality. — Mexico. 



Material examined. — A specimen from Teapa, State of Tabasco, 

 Mexico, determined by Bates and received from the Biologia Centrali- 

 Americana material; a specimen from Habana, Cuba, T. Barbour (in 

 collection of Museum of Comparative Zoology) ; and a specimen 

 from Grand Terre, Guadeloupe, November 14, 1935 (Blackwelder 

 station 86). 



The specimens recorded from Haiti and Santo Domingo by Hinton, 

 1937, and now in the U. S. National Museum appear to belong to A. 

 insulicola rather than this species. 



18. ATAENIUS DARLINGTONI Hinton 



Ataenius darUngtoni Hinton, 1937, Ann. Mag. Nat. Hist., ser. 10. vol. 20, p. 179, 

 figs. 6-9. 



Piceous to black, extreme anterior margins of head and pronotum 

 and legs castaneous, antennae and trophi paler. Anterior margin 

 of head rounded each side of rather deep median emargination, front 

 rather strongly convex, very finely and transversely rugulose with 

 fine punctures replacing the rugulosities near vertex, vertex more 

 coarsely punctured. Pronotum with marginal setae long at sides, 

 short and sparse across base, marginal groove entire. Surface shin- 

 ing, not densely set with punctures of two sizes, fine ones more or 

 less evenly distributed over the entire surface and coarse ones largely 

 concentrated toward the sides. Elytral striae moderately sharp and 

 deep, strial punctures coarse, placed slightly off center in stria so 

 that they tend to encroach on the neighboring interval, intervals 

 feebly convex, shining, very irregularly and finely punctulate. 

 Lateral margin subcarinate, epipleura shining, irregularly and 



