MONOGRAPH OF WEST IXDIAN STAPHYLINIDAE 149 



upon a misidentification. Until the specimens can be reexamined, it 

 must be regarded as a doubtful record. 



I have examined 135 examples of this genus from the West Indies. 

 They appear to belong to 7 species of which 2 are new. 



KEY TO WEST INDIAN SPECIES OF THORACOPHORUS 



1. Lateral margin of pronotum quadridentate 2 



Lateral margin of pronotum at most crenulato 3 



2. From Trinidad' 6. dufeitans 



From Puerto Rico 7. denticollis 



3. Pronotum with five finely elevated longitudinal carinae 5. exilis 



Pronotum without median ridge 4 



4. Submarginal ridge of pronotum attaining margin at anterior 



angles 4. guadalupensis 



Submarginal ridge of pronotum deflexed mesad ; not attaining margin 5 



5. Pronotal ridges carinate : 6 



Pronotal ridges not carinate 1. simplex 



8. Pronotum not much narrowed behind 2. rectangulus 



Pronotum strongly narrowed behind 3. brevicristatus 



1. THORACOPHORUS SIMPLEX Wendeler 



Thoracophorus simplex Wendeleb, 1930, p. ISl. — Scheekpeltz, 1933, p. 1021. 



Description. — Castaneous. Head with feebly carinate margin; no 

 submarginal carinae posteriorly; vertex elevated in two short longi- 

 tudinal rounded ridges. Pronotum, one-third wider than long; sides 

 slightly narrowed anteriorly from middle, but strongly and emargi- 

 nately narrowed posteriorly, more or less crenulate; with a large fovea 

 at each lateral emargination, spaces between the ridges rather strongly 

 depressed, except at middle where there is a feeble narrowly V-shaped 

 elevation ; with four longitudinal ridges, the middle pair not bifid at 

 apex ; the outer pair distant from the margin and deflexed inwardly 

 near apex. Elytra one-fifth wider than pronotum, as long as wide, 

 sides somewhat rounded, apical angles obsolete ; with four feebly cari- 

 nate longitudinal ridges, no sign of additional ridge between the first 

 and second. Integuments not shining, with very dense and minute 

 scaly sculpture. Length, I14 to 1% mm. 



Type locality. — Guadeloupe, Trois-Eivieres. 



Types. — In collection of Hans Wendeler. 



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



Puerto Rico: (U.S.N.M.), Adjuntas (Blackwelder station 48B), Mayagiiea 



(Blackwelder station 358B'>. 

 Montsen-at: (Hubbard, in U.S.N.M.). 



Guadeloupe: (Wendeler, 1930), Gourbeyre (A.M.N.H., Ace. No. 48G0). 

 Dominica: (Blackwelder station 237). 

 St. Lucia: (Blackwelder stations 221, 227). 

 Grenada: (Blackwelder station 153B). 



• See "Remarks" under description of T. duMtang. 



