MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 185 



National Museum (No. 51248) ; and one paratype in the American 

 Museum of Natural History. 

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



Hispaniola: Haiti. Roche Croix (Darlington, 1937; M.C.Z. ; U.S.N.M.), Morne La 

 Hotte (Darlington, 1937). 



SpecirtieTis examined. — I have seen only the paratype in the United 

 States National Museum and one from the Museum of Comparative 

 Zoology. 



Remarks. — This species differs from manni in having the clypeus 

 much narrower, the angles slightly produced, and in having the labrum 

 distinctly emarginate. I am unable to see any distinct difference in 

 the sides of the pronotum, and the differences in the size of the sub- 

 marginal channels is very slight. 



'"Taken under various ground cover in wet cloud forest." 



13. OSORIUS MEDIOCRIS Darlington 



Osorius mediocris Dartjngton, 1937, pp. 286, 296, 297. 



Description. — Piceous to rufopiceous. Head six-sevenths as wide 

 as pronotum ; eyes rather prominent ; clypeus truncate, strongly ere- 

 nate; labrum not emarginate, alutaceous; antennae with outer seg- 

 ments as wide as long ; strongly alutaceous, finely sparsely punctulate, 

 with a few large punctures. Pronotum. one-tenth to one-seventh 

 wider than long, feebly narrowed behind, base about seven-ninths as 

 wide as apex ; sides feebly arcuate ; lateral margin somewhat broader 

 basally ; without trace of midline ; alutaceous, with rather fine punc- 

 tures. Elytra not quite so wide as pronotum, as long as wide, not 

 much expanded; coriaceous, with a few large setigerous punctures. 

 Abdomen scarcely visibly alutaceous except basally below; rather 

 finely and closely submuricately punctate. Anterior face of front 

 tihia with setigerous punctures in a single series. Length, 81/0 mm. 



Type locality. — Southeastern Haiti, La Visite and vicinity. La 

 Selle Range, 5,000-7,000 feet elevation. 



Types.— Ro\oiy\)(i (M.C.Z. No. 20240) and one paratype in the 

 Museum of Comparative Zoology. 



Records. — The following is the only record known to me : 



Hispaniola: Haiti. La Visite (Darlington, 1937). 



Specimens examined. — I have seen only the paratype from the 

 Museum of Comparative Zoology. 



Remarks. — Since the removal of the paratype of hvscki as a new 

 species, the size difference between mediocris and huscki becomes very 

 great. They differ also in the relative size of the head and the form 

 of the labrum. 



I find no record of the habits of this species. 



449008—42 13 



