MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 227 



other staphylinids have the abdomen almost completely rigid. Very 

 few staphylinids have eight visible ventral abdominal segments, the 

 Euaesthetinae not being among those few. 



The number of tarsal subsegments varies so greatly in the Staphy- 

 linidae that the presence of more segments in the Euaesthetinae than 

 is characteristic of the Pselaphidae can scarcely be taken as a charac- 

 ter of importance. There are quite enough staphylinids with 3- 

 segmented tarsi to make this character useless in separating the 

 Staphylinidae and Pselaphidae. 



Three species, placed in three genera, have been recorded from 

 the West Indies. I have seen examples of two of these but am un- 

 able to verify either the generic or specific assignment. In the 

 meager literature on this group I have been unable to find characters 

 for a generic key or for generic diagnoses. I have therefore merely 

 listed the published records and synonymy. 



XXVIII. Genus EXOCTAVIUS Bierig 



Uxoctavins Bierig, 1934e, p. 221, 



Genotype. — E. hermudezi Bierig (monobasic and original designa- 

 tion). 



Remarks. — No information is available to me other than that in 

 the original description referred to above. Only one species is 

 known. 



1. EXOCTAVIUS BERMUDEZI Bierig 



Exoctavius hermudezi Bierig, 1934e, p. 222, pi. 11, fig. 6. 



Type locality. — Cuba, Sierra del Rosario, vicinity of the source 

 of the Rio Taco-Taco. 



Types. — Holotype and allotype in the collection of Alexander 

 Bierig. (An example sent to the United States National Museum 

 labeled cotype was collected at Aspiro. It may not have been in 

 the original series, since that locality was not mentioned in the origi- 

 nal description.) 



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



Cuba: Sierra del Rosario (Bierig, 1934), Aspiro (Bierig, in U.S.N.M.). 



Remarks. — The two types (and one other example) are the only 

 ones known, but the description may be adequate when the other 

 American Euaesthetinae are sufficiently known to permit comparisons. 



XXIX. Genus TAMOTUS Schaufuss 

 Tamotus Schaufuss, 1872, p. 248 (nomen nudum) ; 1877, p. 289. 



Genotype. — T. femoratus Schaufuss (monobasic). 



Remarks. — I can find no diagnosis of this genus or even a dis- 

 cussion of a few characters. Careful study will be required to de- 

 termine its characters and their limits. Only one species is known. 



