MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 109 



My specimens were taken from under stones along streams and 

 flying at dusk. 



6, THINOBIUS NITIDULUS Bernhancr 



Thinohius niliduhis BKRNHAtrEu, 1905, p. 11. — Bernhauer and Schubert, 1911, 



p. 140. — Lenq and Mutchler, 1914, p. 404. 

 Thiuobius (s. str.) piceus Cameron, 1923, p. 397. — Scheerpeltz, 1933, p. 1127.— 



BiEBiG, 1934e, p. 216, 217. 



Description. — Piceocastaneous, pronotum and elytra sometimes 

 feebly rufescent. Head with eyes separated from base by about half 

 their length ; with very fine but very dense granulose sculpture. Pro- 

 notum about one-third wider than long, rectangular with the sides 

 and base arcuate ; with sculpture as on head. Elytra with inner api- 

 cal angles moderately rounded; sculpture nearly as on pronotum. 

 Length, 1 to li/^ mm. 



Type locality. — Grenada, St. Johns River, Leeward side. Of piceus, 

 Jamaica. 



Types. — Presumably in the British Museum (see notes below) ; 

 of piceus, in the collection of Dr. Cameron. 



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



Cuba: Solcdad (Darlington, in M.C.Z.), Range!, Sierra del Rosario (Bierig, In 

 Bierig collection, Cameron collection, and U.S.N.M., as piceus). 



Jamaica: (Cameron, 1923; Scheerpeltz, 1933; Bierig, 1934; Cameron collection; 

 as piceU'S), Gordon Town (Blackwelder station 2), Whitfield Hall, Blue 

 Mountains (Darlington, in M.C.Z. and U.S.N.M.). 



Puerto Rico: El Yunque (Darlington, in M.C.Z. and U.S.N.M.). 



Grenada: (Bernhauer, 1905; Leng and Mutchler, 1914). 



Specimens exainined. — I have seen the presumed type in the 

 British Museum, 13 examples (of piceus) in Dr. Cameron's collec- 

 tion, 5 from the Museum of Comparative Zoology, 1 in the United 

 States National Museum, and 2 collected by me in 1935-37. 



Remarks. — This species may be recognized by its broad rectangular 

 pronotum and the characters used in the key. I find very little vari- 

 ation in these specimens. The description was drawn from a Jamai- 

 can example. 



Although Dr. Bernhauer does not mention the British Museum 

 or the location of the type of this species, it appears very likely that 

 the example in that museum is the type. Dr. Bernhauer had no other 

 source of H. H. Smith specimens and would not have been permitted 

 to retain the holot3'pe. 



I find no record of the habits of this species, but my examples were 

 found under stones along a stream. 



XI. Genus PLATYSTETHUS Majinerheim 



Platystethus Mannerheim, 1830, p. 46. 

 Platijsthetus Ekichson, lS39a, p. ."^So. 

 Pyctocraerus Thomson, 1861, p. 125. 



