36 PROCEEDINGS OF THE NATIONAL MUSEUM vol.89 



femur with perimarginal groove, surface very coarsely and densely 

 punctured. Posterior femur slender, shining, sparsely and finely 

 punctured, without marginal groove; posterior tibia without 

 accessory spine. Length: 3.5-4.2 mm. 



Tyfe. — Of versicolor in collection Schmidt ; of Tiaitianus, U.S.N.M. 

 No. 53892. 



Type locality. — Haiti, Hispaniola. 



Material exaTnined. — Eighteen specimens from Haiti, six from 

 Dominican Republic, and one from Point Cangrejos, Puerto Rico, 

 April 6, 1920, G. N. Wolcott. There is an additional specimen from 

 15 miles northeast of Port-au-Prince, Haiti, August 26, 1935 (Black- 

 welder station 30) that appears to be an abnormal individual of this 

 species. It is but 3.2 mm. in length and is less densely punctured 

 than usual. 



24. ATAENIUS LUTEOMARGO, new species 



Aphodius inarginellus Chevrolat, 1864, Ann. Soc. Ent. France, ser. 4, vol. 4, 



p. 414 (not Fabricius). 

 Ataenius terminalis Abbow, 1903, Trans. Ent. Soc. London, p. 512 (not 



Chevrolat). 

 Ataenius versicolor Hin-ton, 1937, Ann. Mag. Nat. Hist., ser. 10, vol. 20, p. 183. 



(Hinton's specimens from Dominica and .Jamaica now in U. S. National 



Museum, not Schmidt). 



Piceous, margins of head and pronotum indefinitely paler, outer 

 two intervals and apices of elytra yellowish to brownish yellow, 

 pygidium and tibiae castaneous, antennae and trophi paler. An- 

 terior margin broadly rounded (subangulate in fresh specimens) 

 on each side of the very shallow median emargination, front 

 minutely punctulate, otherwise smooth in male or finely transversely 

 rugulose in female, vertex anteriorly with a narrow band of coarse 

 punctures extending between eyes, posteriorly impunctate and shin- 

 ing. Pronotum with marginal setae sparse and irregularly placed, 

 marginal groove complete but fine across base. Surface very finely 

 alutaceous, in male minutely and rather sparsely punctulate with 

 sparse coarse punctures laterally and across the base, in female, 

 similar but with coarse punctures more densely placed. Elytral 

 striae very fine, strial punctures hardly visible, intervals feebly con- 

 vex, each interval rather strongly alutaceous and set with two rows 

 of very fine punctures. Lateral margin carinate except at apex where 

 it is bluntly rounded. The upper face of the carina carries a series 

 of coarse punctures. Epipleura shining. Pygidial carina with 

 strong median cusp, pygidial apex thickened. Mesosternum finely 

 sculptured, strongly pubescent, metasternum shining, minutely and 

 sparsely punctulate, median groove abruptly terminated anteriorly, 

 evanescent posteriorly. Abdominal sternites coarsely but indefinitely 



