Stapliylinidm of tlie Amazon Valley. 259 



distinctly a little longer. Notwitlistandino; its great re- 

 semblance to L. diffinis, the aideagus is different enough 

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

 si)ecies, the appendage with ^\hich it is furnished being 

 short and hastate in"Z. sohrina, while it is elongate and 

 slender in L. diffinis. 



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

 pedibus testaceis ; capite thoraceque nitidulis, transversis, 

 crebre fortiter punctatis, hoc linea media impunctata ; 

 elytris thorace longiorlbus, crebre minus fortiter punctatis, 

 vix nitidis; abdomine dense subtilissime puuctato. Long. 

 Corp. 2 lin. 



Antennte 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 punctures 

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

 the elytra, a good deal broader than long, scarcely 

 narrowed behind, the front 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 pmictured, only a little 

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

 densely and finely punctured, not shining. Legs yellow ; 

 front 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. TAtliocharis vestita, n. sp. Rufo-castanea, breviter 

 hirsuta, nitidula, antennis l^revibus 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. 



Antennre yelloAv, short, rather stout, distinctlv thickened 



s2 



