StaphylinidcB of the Amazon Vallei/. 43 



tarsi pale ; the lilnd logs have the base of the femora pale, 

 the rest as well as the tibias pitchy ; but the extremity of 

 the tibife and the tarsi are pale. 



Of this most elegant species I have seen but one speci- 

 men, from Ega. 



3. Falagria curtipennis, n. sp. Elongata, rufo-testacea, 

 iiitida, fere laavis, abdomine subdilatato, segmento quinto 

 piceo. Long. 1^ lin. 



This species has a peculiar aspect for this genus, owing 

 to its elongate form, and its hind body being broader than 

 the anterior parts. It is shining, of a yellowish colour, 

 with the fifth segment of the hind body darker ; its upper 

 surface is smooth, shining and impunctate ; the under 

 surface of the hind body is furnished towards the extre- 

 mity with numerous hairs. The antennre are yellow, and 

 reach quite to the extremity of the elytra ; they are stout 

 for this genus, and considerably thickened towards the 

 apex ; the 2nd, 3rd and 4th joints are slender and elon- 

 gate, the 3rd a little longer than the 2nd, much longer 

 than the 4tli ; from the 5th to the 10th each joint is a 

 little broader than the preceding one, the 10th being 

 about as long as broad; the lltli joint is pointed, about 

 as broad as the 10th, but twice as long. The head is quite 

 smooth and shining, quite as broad as the thorax ; the 

 thorax is rather longer than its greatest breadth, convex, 

 smooth and shining, Avith two or three seta3 towards the 

 sides ; it is subcordate, with the anterior and posterior 

 angles rounded; it is delicately margined at the sides 

 and behind, w^ithout channel or fovea. The elytra are 

 not so long as the thorax, and scarcely attain the width 

 of its broadest part ; they are just a little darker in colour, 

 impunctate and shining, with a most delicate and spar- 

 ing pubescence. The hind body is rounded at the sides ; 

 it is elongate and considerably broader in the middle than 

 at the base and apex. The legs are yellowish and elon- 

 gate, the tarsi very slender. 



Several specimens from Tapajos. 



Ohs, — A very closely allied species to this one occurs 

 at Monte Video. 



Placusa. 



No species with this generic name has yet been indi- 

 cated as inhabiting the New World ; and the species I here 



