StaphylinidcB of the Amazon Valley. 69 



Aleochara. 



The four species described under this generic name 

 appear to be closely allied in structure to one another and 

 to the European A. fuscipes. Allied species appear to 

 be found all over tlie world, and some species have an 

 extremely wide geographical range. I have, however, 

 seen no specimens of any of the species here described 

 from any other locality than the Amazons, and I have 

 also failed to identify any of the four with species pre- 

 viously described from tropical America ; in which part 

 of the world, I may remark, that allied species are no 

 doubt pretty numerous, though as yet scarcely a dozen 

 have been described as purporting to belong to the genus 

 and to the locality mentioned. 



1. Aleochara prisca, n. sp. Latior, nigra, antennis 

 medio subincrassatis, elytris fuscis, thorace brevioribus ; 

 pedibus fusco-testaceis, ano rufo-testaceo, abdomine sat 

 crebre minus fortiter punctato. Long. corp. 4 lin. 



Allied to A. fuscipes. Antenna? black, very stout, 

 with the joints very short ; 2nd and 3rd joints slender, the 

 latter the longer; 4th strongly transverse; 5—7 similar 

 to one another, 5th considerably broader than the 4th, 

 after the 7th slightly narrower again to the extremity. 

 Head very much narrower than the thorax, distinctly but 

 not closely punctured. Thorax rather narroAved in front, 

 its breadth about one and a half times its length, mode- 

 rately closely and distinctly punctured. Elytra consider- 

 ably shorter than the thorax, not quite black, closely and 

 distinctly punctured. The hind body is broad, not nar- 

 rowed till the 6th segment, moderately closely and strongly 

 punctured ; the punctuation of the basal segments finer 

 than that of the rest ; the 7th segment, as weU as the 

 hind margin of the 6th, reddish. Legs pitchy, with the 

 anterior tibife yellowish, 



Ega ; one specimen, which appears to be a female. 



Obs. — This species appears to be very closely allied to 

 the European A. fuscipes, but it has the elytra darker 

 and the extremity of the hind body paler ; the 4th joint 

 of the antennae is more transverse ; the head has an im- 

 punctate space on the disc, and the punctuation of the 

 hind body is rather finer and closer. 



2. Aleochara verecunda, n. sp. Nigra, antennis basi, 



