WEST INDIAN APHODIINAE — CHAPIN 23 



of pits on each sternite fine but distinct. Anterior femur with 

 perimarginal groove, surface densely and finely punctured. Posterior 

 femur with posterior marginal groove, surface sparsely and finely 

 punctured; posterior tibia without accessory spine. Length: 

 3-3.7 mm. 



Type and paratypes. — U.S.N.M. No. 50764. 



Type locality. — Miami, Florida, U. S. A. 



Material examined. — The type, two paratypes, and six other speci- 

 mens, two each from St. Croix, St. Kitts, and Barbados. The 

 Barbados specimens are in the collection of the British Museum. 



This species is somewhat similar to A. tenehrosits Arrow but is 

 distinguished immediately from that species by the oval shape of 

 the hind body and by the setigerous punctures of the elytra. 



10. ATAENIUS TENEBROSUS Arrow 



? Ataenius picipes Fleutiaux and SAixt, 1889, Ann. Soc. Ent. France, ser. 6, 



vol. 9, p. 397. 

 Ataenius tenebrosus Abrow, 1903, Trans. Ent. Soc. London, p. 512. 



Piceous, opaque, anterior margin of head shining castaneous, legs 

 castaneous, antennae, tarsi, and trophi paler. Anterior margin of 

 head broadly rounded each side of the broad and not deep median 

 emargination, narrowly impunctate, front coarsely punctured, the 

 punctures coalescing to form irregular longitudinal channels, vertex 

 coarsely and densely set with discrete punctures. Pronotum with 

 marginal setae inconspicuous, marginal groove entire, extreme margin 

 somewhat explanate. Surface dull, densely pmictured, the punctures 

 laterally very coarse and cribrate, those on anterior portion of disk 

 finer and distinctly separated. Elytral striae deep, strial punctures 

 coarse, intervals not strongly convex, surface coarsely alutaceous, 

 almost scaly, without visible punctures. Humeral angle unusually 

 sharply produced. Lateral margin carinate, epipleura dull. Pygid- 

 ial carina with strong median cusp. Metasternum somewhat shin- 

 ing at middle, lateral areas finely and densely sculptured, median 

 area coarsely and sparsely punctured, median groove abruptly termi- 

 nated both anteriorly and posteriorly. Abdominal sternites coarsely 

 and rather sparsely punctured, basal transverse row of pits on each 

 sternite well defined. Anterior femur with deep perimarginal groove, 

 surface coarsely and densely sculptured. Posterior femur with pos- 

 terior marginal groove entire, surface shining, sparsely and finely 

 punctured; posterior tibia without accessory spine. Length: 

 3.7-4.5 mm. 



Type. — In the British Museum. 



Type locality. — Grenada, British West Indies (here restricted). 



