WEST INDIAN APHODIINAE — CHAPIN 29 



emarginatioii, front moderately convex, in male rather finely and 

 moderately densely punctured, finely and rather sparsely rugulose, 

 in female the rugulosities tend to be coarser and to obscure the punc- 

 tures, vertex more coarsely punctate. Pronotum with marginal setae 

 inconspicuous, very short across base, slightly longer toward anterior 

 anglCiS, marginal groove entire, posterior angles not completely ef- 

 faced. Surface shining, set with a mixture of fine and coarse punc- 

 tures, the latter somewhat concentrated toward the sides. In the 

 female the coarse punctures are even coarser than in the male, and 

 in some specimens those near the anterior angles tend to coalesce. 

 Elytral striae deep, strial punctures rather coarse, intervals moder- 

 ately convex, finely and irregularly punctulate. Lateral margin sub- 

 carinate, epipleura shining, with traces of sculpture. Pygidial carina 

 with a feeble cusp. Metasternum shining, lateral portions coarsely 

 sculptured except for a narrow smooth area before each coxa, the 

 median portion .somewhat concave, sparsely and rather finely punc- 

 tured, median groove deep, rather abruptly terminated anteriorly. 

 Abdominal sternites coarsely but sparsely punctured, the punctures 

 becoming more dense laterally, basal transverse row of pits on eacli 

 sternite fine. Anterior femur with perimarginal groove, surface 

 coarsely but sparsely punctured. Posterior femur with groove on 

 posterior margin in apical half, .surface finely and sparsely punctulate ; 

 posterior tibia with accessory spine. Length : 3.8-4 mm. 



Type. — In the British Museum. 



Type locality. — Mexico to Panama (not definitely restricted). 



Material examined. — Two specimens from the type series received 

 some years ago from the British Museum. Other specimens from 

 Central America and 53 .specimens from Jamaica and Cuba. There is 

 also a specimen in the collection from St. Thomas, Virgin Islands, 

 which I refer to this species with doubt. 



17. ATAENIUS LIOGASTER Bates 



Ataenius liogaster Bates, 1887, Biologia Centrali-Americana, Coleoptera, voL 2, 

 pt. 2, p. 94.— HiNTON, 1937, Ann. Mag. Nat. Hist., ser. 10, vol. 20, p. 193. 



Piceous-black, anterior margin of head narrowly and legs castaneous, 

 antennae and trophi pale. Anterior margin of head subangulately 

 rounded each side of the very shallow median emargination, front only 

 slightly convex, finely transversely rugulose anteriorly, very finely and 

 sparsely punctured posteriorly. Vertex more coarsely and rather 

 densely punctured. Pronotum with marginal setae fine, short, and 

 inconspicuous across base, marginal groove entire, posterior angles 

 almost obsolete. Surface shining, set with a mixture of minute and 

 coarse punctures, the coarse punctures more sparsely placed and very 



