MONOGRAPH OF WEST IXDIAN STAPHYLINIDAE 451 



third, almost emarginate to front angles, sinuately narrowed to un- 

 evenly rounded base; punctures similar to those of head at sides but 

 with two irregular discal series of about 10 punctures; ground sculp- 

 ture as on head. Elytra with moderately coarse and rather dense 

 punctures separated by about their diameter ; surface without ground 

 sculpture, but uneven. Abdomen with moderate punctures strongly 

 excavated behind, sometimes submuricate; surface alutaceous but with- 

 out distinct ground sculpture. Mdle^ eighth sternite feebly and 

 broadly emarginate. Female^ eighth sternite truncate. Length, 14 

 to 18 mm. 



Type locality. — Colombia. 



Types. — Presumably in the Zoological University Museum, Moscow. 



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



St. Vincent: (H. H. Smith, in Britisli Museum). 



Trinidad: (Bryant and Birch, in British Museum; Busck, in U.S.N.M.), Port 



of Spain (Marshall, in British Museum), Caparo (Blackwelder collection), 



Ariapito (Blackwelder collection), St. Augustine (Darlington, in M.C.Z. and 



U.S.N.M.), Mount Tucuche (Darlington, in M.C.Z. ). 

 South America: Colombia (Motschulsky, 1858), Colombia, Venezuela, Guiana, 



Brazil (Bernhauer and Schubert, 1914), Colombia, Brazil (British Museum). 



Specimens examined. — I have seen six examples in the British 

 Museum, four from the Museum of Comparative Zoology, one in the 

 United States National Museum, and two in my owiij collection. 

 Specimens from South America also were examined in the British 

 Museum. 



Remarks. — The single example from St. Vincent is perhaps not suffi- 

 cient evidence that this species has extended its range north of Trini- 

 dad, but I have no definite reason for doubting the record. 



This species is distinguished fi'om cognatus of Central America by 

 its sparser and less coarse punctures on the head and pronotum, by 

 its coarser elytral punctation, and by the pale abdominal apex extend- 

 ing only to the middle of the seventh tergite. 



I find no record of its habits. 



LXX. Genus PHILOTHALPUS Kraatz 



Philothalpus Kraatz, 1857, p. 540. 



Philotalpus Gemminger and Harold, 1876, index (misspelling). 



Subgenus Xenopygus Bernhaueb, 190G, p. 196. 



Subgenus OUgotcrgus Bieeio, 1937, p. 204. 



Genotypes. — Staphylinus anceps 'Erichson^ Philothalpus anceps 

 (Erichson) (designated here). Of Xenopygus, Philonthus analis 

 'EiYic}\soi\= Xenopygus analis (Erichson) (designated here) ; of 

 Oligotergus., Philothalpus (Oligotergus) oculaf us Bierig (monobasic). 



Diagnosis^ — Head without dense umbilicate punctures, margined 

 beneath the eyes; antennae widely separated at front of head, outer 



