228 BULLETIN 18 2, UNITED STATES NATIONAL RIUSEUM 



1. TAMOTUS FEMORATUS Schaufuss 



Tatiiotiis fcmoratus Schaxxfuss, 1874, p. 289; 1883, p. 166, 170.— FAmTx, 1902a, 

 p. 38. — EICHET.HAUM, 3909, p. 132. — Bernhaot:b and Schubert, 1911, p. 188. — 

 Leng and Mutchler, 1914, p. 404. 



Type locality. — Cuba. 



Types. — Possibly in the Zoologische Museum, Berlin. 



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



Cuba: (Schaufuss, 1874; Leng and Mutchler, 1914). 



Remarks. — This species has apparently not been reported since 

 the original description. The information available is insufficient 

 to place it in its proper relation to the rest of the subfamily. 



XXX. Genus STENAESTHETUS Sharp 

 Stenaesthetus Sharp, 1874, p. 79. 



Genotype. — /S. suniokles Sharp (monobasic). 



Rem/jrks. — I can find no adequate diagnosis of this genus. It has 

 apparently not been mentioned since its original proposal. Four 

 species have been assigned to it. 



1. STENAESTHETUS IMMARGINATUS (Erichson) 



Euaesthetus immarginatus Erichson, 1840, p. 748. 



Type locality. — "Valle Araguensi Columbine." 

 Types. — In either the Hope Museum, Oxford, or the Zoologische 

 Museum, Berlin. 



Recoi'ds. — The following arc the records known to me : 



St. Vincent: (British Museum). 



South America: Colombia (Erichson, 1840). 



Remarhs. — One example from St. Vincent is in the British Museum. 

 It is the sole authority for the transfer of this species from Euaesthe- 

 tus to Stenaesthetus, as well as for the West Indian record. 



Subfamily Paederinae 



Tliis large and important subfamily presents more difficulties than 

 most of the others. A revisionary treatment of the genera was 

 attempted by me in 1939 as part of this study, but some changes have 

 been made in tlie prsent manuscript. Several groups of genera are 

 in need of furthur revision. Among these may be mentioned the 

 Piuophiliiii, the ]\/yrmecosaurys-g;vonp^ the M edon-Lithocharis com- 

 plex, and ihe Stilicopsis-group. 



With ninny of the smaller species segregation to genus can be 

 made only after examination of the prostorunl process under tlie 

 front coxae. This usually necessitates the relaxing and lifting of 

 one front coxa. In the West Indian fnuna the genera can later 



