MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 151 



vertex with two tuberculate prominences extended as irregular 

 carinae for a short distance anteriorly. Pronotum three-tenths 

 wider than long, one-twelfth wider than head; anterior angles prom- 

 inent ; sides nearly straight in apical three-fourths, at base so strongly 

 narrowed they merge with base, distinctly crenulate; no foveae at 

 margin; with four longitudinal ridges, middle two forked at ante- 

 rior third; submarginals distant from margin at anterior angles and 

 deflexed inward, Avith a small branch at middle on outer side; disk 

 without fine carinulae but coarsely sculptured. Elytra about one- 

 sixth wider than pronotum and one-sixth wider than long; sides 

 feebly rounded but posterior angles visible; with four strong cari- 

 nate longitudinal ridges and a trace of an additional one between 

 the first and second. Integuments with very dense but not very fine 

 ground sculpture, less evident on abdomen. Length, 2 to 21/^ nnn. 



Type locality. — Arizona, Camp Grant. 



Types. — One specimen in the Horn collection at the Academy of 

 Natural Sciences of Philadelphia. 



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



Cuba: Cayamas (Sehwarz, in U.S.N.M.). 

 Puerto Rico: Mayagiiez ( Blackwelder station 358B). 

 St. Thomas: (Fauvel, 1902; Leng and Mutchler, 1914). 

 St. Croix: (Beatty, in U.S.N.M.). 



Guadeloupe: (Fauvel, 1902; Leng and Mutchler, 1914). 

 Central America: Mexico (Fauvel, 1878, 1902; Sharp, 1887). 



North America: Florida (Sehwarz, in U.S.N.M.), Arizona (Horn, 1871; Fauvel, 

 1878, 1902; Sharp, 1887). 



Specimens eicamined. — Five examples in the United States Na- 

 tional Museum and two collected by me in 1935-37. 



Remar'ks. — I am unable to find any characters to separate the West 

 Indian examples from the Florida ones. I have not been able to 

 verify the St. Thomas and Guadeloupe records given by Leng and 

 Mutchler. FauveFs remarks on this species seem to me to be un- 

 necessary as Horn's description fits our examples accurately. 



In 1902 Fauvel proposed deJetus from the Philippine Islands and 

 Reunion as a variety of hrevicristatus. It has not since been re- 

 ported, and I have grave doubts that it is related to hrevici^istatus. 

 I omit it from the synonymy as a probable error in identification. 



This specie^ has been collected from under the bark of rotting 

 logs and flying at dusk. 



4. THORACOPHORUS GUADALUPENSIS Cameron 



Thoiat'ophorus fjuadaluprn.sis Cameron, 1913b, p. 323. — Leng and Mutchi,ek, 

 1917, p. 198.— ScHEERPELTz, 1933, p. 1021. 



Description. — Castaneous to piceocastaneous. Head with margin 

 only moderately explanate; Avith a moderately strong submarginal 



