Staphylinlda of the Amazon Valleij. 30i) 



Very closely aUied to T. recta; rather more slender, 

 3rd joint of antenna? shorter, the front parts more shming. 



5. Tanodema duhia, n. sp. Nigra, nitida, capite, 

 thorace, elytrisqueviridi-JBneis; palpis, antennarum basi 

 tarsisque anterioribus testaceis; capite thoraceque lortiter, 

 elytris parce subtiliter, pimctatis. Long. corp. 6^ hn. 



Mas : abdomine segmento 7° ventrah apice late, pauluni 

 profunde emarginato. 



Elono-ate and narrow; antennas slender, U lin. in length, 

 black, with the two basal joints yellow and mfuscate in- 

 wardly ; 3rd joint one and a half times as long as 2nd. 

 Head small, coarsely and densely punctured, except on a 

 space in front of the" vertex. Thorax % Im m length, and 

 hardly broader than long, very little rounded at the sides, 

 and slightly narrowed behind. Scutellum with a lew hne 

 punctures. Elytra 1 lin._ in length. Hind body nearly 

 concolorous at the extremity. 



Ega; a single male. . t -i i 



This may possibly prove to be only an individual varia- 

 tion of TcBuodema Unta; it differs only from it in bemg 

 rather smaller, and having the front parts rather narrower, 

 the thorax being a little less rounded at the sides, rather 

 more coarsely punctured along the middle, the punctua- 

 tion of the hind body rather less, and the legs a little 

 shorter. 



6. Tcenodema quadrata, n. sp. Nigra, nitida, capite, 

 thorace, elytrisque viridi-seneis, antennarum basi, palpis, 

 tarsisque anterioribus testaceis; antennis apice piceis; 

 capite thoraceque fortiter punctatis, elytris subtiliter 

 pimctatis, punctis suturalibus magis numerosis. Long, 

 corp. 6 lin. 



Antenna? about U lin. in length, the two basal joints 

 yellow, the intermediate ones nearly black, the apical joint 

 pitchy yellow ; 3rd joint about one and a half times as long 

 as 2nd. Head small, rather closely punctured, a space 

 in fi-ont of the vertex impunctate, the punctures on the 

 front part forming a patch in the middle and a patch on 

 each side, but the three patches only a little separate; 

 vertex rather finely punctured. Thorax not quite so long 

 as broad, nearly I lin. in length, a little rounded at the 

 sides, not narrowed behind, shining, coarsely punctured, 

 the punctures more sparing towards the margins, and 



