MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 317 



emargination at middle ; eighth sternite with a rounded emargination 

 three times as wide as deep, the outer angles rounded and somewhat 

 produced, tlie surface of the segment behind the emargination forming 

 a triangular concavity, which is impunctate but with the usual ground 

 sculpture. Female^ seventh sternite not modified; eighth somewhat 

 truncate. Length, Zyo to 4 mm. 



Type locality. — Cuba. Of insulare^ Jamaica. 



Types. — The tj-pe should be in the British Museum (from Guerin- 

 Meneville via the Sharp collection), but I did not find it there. Of 

 ituulare, in the collection of Dr. M. Cameron. 



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



Cuba: (Duval, 1857; Bernhauer and Schubert, 1912; Leng and Mutchler, 1914; 

 British Museum), Cayamas (Schwarz, in U.S.N.M.), Soledad (Darlington, in 

 jr.C.Z. and U.S.N.M.), Maisi m Oriente (Darlington, in M.C.Z. and U.S.N.M.). 



Jamaica: (Cameron, 1922; Cameron collection, as Insulare), Black River (Black- 

 welder station 416), Santa Cruz (Blackwelder station 421). 



/Specimens examined. — I have seen one specimen in the British 

 Museum, two in the United States National Museum, seven collected 

 by Dr. P. J. Darlington, and three collected by me in 1935-37. 



Eemarlcs. — I am unable to distinguish the Jamaican from the Cuban 

 examples. The description was drawn from a Cuban example in the 

 United States National Museum. This species belongs in the subgenus 

 Pseudolathra. 



My specimens were taken flying at dusk. 



6. LOBRATHIUM DARLIKGTONI, new species 



Description. — Rufous, head rufopiceous or picescent, elytra piceoiis 

 with outer apical third rufotestaceous. Head with sparse moderatei 

 punctures separated by one to three times their diameter; without 

 ground sculpture ; gular sutures moderately separated, most approxi- 

 mate near apex. Pronotum very sparsely punctate, median smooth 

 space outlined by two regular series of 7 to 10 punctures; lateral punc- 

 tures not in series ; without ground sculpture. Elytra with moderately 

 coarse punctures in series, 1 sutural, 2 discal, and 1 posthumeral ; with- 

 out ground sculpture. Hind tarsals with first segment longer than 

 second. Male., seventh sternite with a semicircular emargination in 

 median third, the angles produced into short but acute processes; 

 eighth sternite with a rounded emargination three times as wide as 

 deep, the outer angles rounded and somewhat produced, the surface of 

 the segment behind the emargination forming a triangular concavity 

 which is impunctate but v.-ith the usual ground sculpture. Female., 

 sternites not emarginato. Length, 4^/^ mm. 



Type locality. — Triniciad, St. Augustine. 



Types. — Holotype, male, and two paratypes, male and female, in the 

 Museum of Comparative Zooiogj^; tliree paratypes, male, in the United 



