184 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



feebly emarginate, rather finely crenulate; labriim truncate, aluta- 

 ceous; antenna slender; alutaceous and finely punctulate. Pronotum 

 one-fourth wider than long; moderately narrowed posteriorly, base 

 about as wide as apex ; sides feebly evenly arcuate except near base ; 

 lateral margin scarcely widened posteriorly; without distinct mid- 

 line; alutaceous and sparsely finely punctate. Elytra very slightly 

 wider than pronotum, nearly one-seventh wider than long ; coriaceous, 

 with a few large setigerous punctures. Ahdomen feebly alutaceous 

 except on apical segments ; with sparse muricate setigerous punctures 

 especially apically on each segment. Front tibiae not known (lost 

 from type). Length, 11 mm. 



Type locality. — Cuba, Pinares in Orients. 



Types. — Unique holotype in the United States National Museum 

 (No. 26345). 



Records. — The following are the records known to me : 



Cuba: Pinares (Notman, 1925; Darlington, 1937; U.S.N.M.), Yunque de Baracoa, 

 Oriente (Darlington, in M.C.Z.). 



Specimens examined. — I have seen only the holotype and one exam- 

 ple in the Museum of Comparative Zoology. 



Remarks. — This species is very similar to cautis and socors of Dar- 

 lington. It has been taken only twice. 



I find no record of its habits except that Dr. Darlington's specimen 

 was collected at an elevation of 1,000 to 1,800 feet. 



12. OSORIUS CAUTIS Darlington 



Osorius cautis Dabungton, 1937, pp. 286, 295. 



Description. — Piceous. Head eight-ninths as wide as pronotum; 

 eyes only very slightly prominent ; clypeus truncate, anterior margin 

 crenulate, angles slightly prominent ; labrum slightl)^ eraarginate, 

 alutaceous; antennae slender; alutaceous and finely punctulate, with 

 a few large setigerous punctures. Pronotum. one-seventh wider than 

 long, moderately narrowed behind ; base four-fifths to six-sevenths as 

 wide as apex; sides nearly straight, feebly sinuate; lateral margin 

 broader posteriorly; without distinct midline; finely alutaceous and 

 punctulate. Elytra as wide as or slightly wider than pronotum, as 

 long as wide, nearly parallel; surface shining, sparsely punctulate, 

 with a few large setigerous punctures. Abdomen not distinctly alu- 

 taceous; sparsely punctate above. AnteHor face of front tibia with 

 a single series of setigerous punctures. Length, 11 to III/2 mm. 



Type locality. — Southwestern Haiti, summit of ridge just above 

 Roche Croix, on a northern spur of Mome La Hotte, elevation 5,000 

 feet. 



Types. — Holotype (M.C.Z. No. 20239) and seven paratypes in the 

 Museum of Comparative Zoology ; one paratype in the United States 



