MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 245 



Hispaniola: Dominican Republic: San Jo&6 de las Matas (Blackwelder station 



38). 

 Puerto Rico: Salinas (Blackwelder station 60). 

 St. Croix: (Blackwelder stations 330, 339). 

 Antigua: (Blackwelder stations 275A, 2S0B, 285B, 290). 

 Montserrat: (Blackwelder station 270). 

 Guadeloupe: Basse Terre (Blackwelder station 70). 

 St. Lucia: (Blackwelder station 213). 



Specimens examined. — I have seen only the 33 types. 



Remarks. — This species is rather close to ochracea in its male char- 

 acters as well as all other characters observed. It differs constantly, 

 however, in the form and size of the ctenidium of the seventh sternite 

 and can be distinguished at a glance even with low magnification. 

 As with the other species of this complex no females can be definitely 

 associated with these males. It belongs in the subgenus Lithocharis 

 s. str. 



I have collected this species from cattle dung and horse manure 

 and flying at dusk. 



4. LITHOCHARIS VOLANS, new species 



Description. — Agreeing in all respects with the description of ochra- 

 cea except for the male characters. Male., seventh sternite with a very 

 slight but broad emargination ; eighth sternite with a shallow but 

 angular emargination with the lateral angles rounded. Length, 3 to 

 3% mm. 



Type locality. — Jamaica, Hope Gardens, Kingston. 



Types. — Holotype, male, U.S.N.M. No. 52397, collected by me on 

 July 4, 1935, and one paratype collected by Chapin and Blackwelder 

 on February 24, 1937, near Santa Cruz, parish of St. Elizabeth. 



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



Jamaica: Kingston (Blackwelder station IC), Santa Cruz (Blackwelder station 



421), Milk River (Blackwelder station 415). 

 [Puerto Rico: Salinas (Blackwelder station 60).] 



Specimens examined. — I have seen only the two types and three 

 other specimens mentioned below. 



Remarks. — This species differs from all the others of this group 

 known to me in lacking any ctenidial modification of the seventh 

 sternite in the male, but the presence of the single median tooth appears 

 to be sufficient to establish it as a Lithocharis., at least at present. 



A second specimen from Santa Cruz differs from the type in having 

 the emargination of the eighth sternite broader, deeper, and rounded 

 at apex. The specimen from Puerto Rico also differs in the same 

 character, having the emargination much more abrupt, scarcely wider 

 than deep, and with all the angles narrowly rounded. 



These specimens were collected from dung and manure, and flying 

 at dusk. 



