MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 499 



Remarks. — This species may be distinguished by the size of the 

 pronotal punctures, by the reduced elytra, and by the shape of the 

 pronotum. 



The specimen from Haiti differs in the dense reticulate sculpture of 

 the head and pronotum and other details. I hesitate to describe it 

 as distinct because of the variation in these characters in the short 

 series before me. 



One of the Loma Rucilla examples differs in lacking all trace of 

 ground sculpture on both the head and pronotum. I include it here 

 with some doubt. 



I have received no record of the habits of this species. 



4. LITHOCHARODES CAVICOLA, new species 



Description. — Dark piceocastaneous, base of elytra indefinitely tes- 

 taceous. Head over one-fourth longer than wide, distinctly expanded 

 behind the eyes, angles and base completely rounded ; antennal grooves 

 very feeble, diverging; without regular ocular grooves, but with a 

 short groove from middle of each eye above continued across as a 

 depression, dividing the vertex transversely; with ver}^ fine and not 

 umbilicate punctures, usually separated by three to six times their dia- 

 meter ; without ground sculpture. Pronotwm tw-o-thirds longer than 

 wide, widest at anterior third, front angles broadly rounded but apex 

 not semicircular, sides feebly emarginately converging behind, angles 

 and base broadly rounded ; smooth median space not definitely limited, 

 punctures fine but irregularly impressed, denser tlian on head ; with- 

 out ground sculpture. Elytra small but not appressed; with very 

 indefinite and sometimes excavated punctures sparse and indistinct, 

 surface irregular but without distinct ground sculpture. Ahdoinen 

 with fine submuricate punctures rather numerous and somewhat 

 transversely serial ; without ground sculpture. Length, 4i/^ mm. 



Type locality. — Trinidad, a cave in Aripo Valley, elevation about 

 2,600 feet. 



Types. — Holotype in the Museum of Comparative Zoology; one 

 paratype in the United States National Museum (No. 62525) ; collected 

 by N. A. Weber on April 19, 1935. 



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



Trinidad: Aripo Valley (Weber, in M.C.Z. and U.S.N.M.). 



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



Remarks. — This species is distinct because of its fine sparse punc- 

 tation, the shape of the pronotum, and the transverse depression of 

 the head. 



The types were found deep in a cave. 



