StaphylinidcB of the Amazon Valley. 259 



distinctly a little longer. Notwithstanding its great re- 

 semblance to L. diffinis, the aedeagus is different enough 

 in the two to make me feel sure they are quite distinct 

 species, the appendage Avith which it is furnished being 

 short and hastate in L. sobiina, while it is elongate and 

 slender in Z-. diffinis, 



7. Litliocliaris crassula, n. sp. Crassiuscula, castanea, 

 pedibus testaceis; capite thoraceque nitidulis, transversis, 

 crebre fortiter punctatis, hoc linea media impunctata ; 

 elytris thorace longioribus, crebre minus fortiter punctatis, 

 vix nitidis; abdomine dense subtilissime punctato. Long. 

 Corp. 2 lin. 



AntenniB short, reddish-yellow; 3rd joint about equal to 

 2nd, 4th shorter than 3rd, 5 — 9 differing but little from 

 one another; the 9th and 10th, however, slightly stouter 

 than the others, about as long as broad. Labrum with a 

 small notch in the middle, without teeth. Mandibles with 

 the basal part stout, each with three teeth ; on the left the 

 two upper ones very small, on the right the upper one 

 small. Head broad and short, about as broad as the 

 thorax, the hind margin distinctly emarginate ; the surface 

 rather coarsely and closely punctured, the piinctures 

 "wanting on a space in the centre. Thorax as broad as 

 the elytra, a good deal broader than long, scarcely 

 narrowed behind, the fi'ont a little rounded ; the surface 

 coarsely and rather closely punctured, with a smooth line 

 along the middle. Elytra a little longer than the thorax, 

 moderately closely and not coarsely punctured, only a little 

 shining. Hind body a good deal pointed at the extremity, 

 densely and finely punctured, not shining. Legs yellow ; 

 fi'ont tarsi dilated, hind tarsi slender but not very long; 

 4th joint simple. 



In the male the hind part of the ventral plate of the 

 7th segment of the hind body has a moderately large notch 

 in the middle. 



Tapajos, one male; St. Paulo, one female. 



8. Lithocharis vestita, n. sp. Rufo-castanea, breviter 

 hirsuta, nitidula, antennis brevibus cum pedibus testaceis ; 

 capite crebre minus subtiliter punctato, vertice medio 

 prohmde impresso ; thorace crebre subtiliter punctato ; 

 elytris parcius, dorso obsolete biseriatim punctatis. Long. 

 Corp. vix 2 lin. 



Antennge yellow, short, rather stout, distinctly thickened 

 s2 



