Stajihylinida of the Amazon Valley. 257 



short and robust, tlielr teeth small. Head pitchy, densely 

 and very finely punctured, very delicately pubescent, 

 scarcely shining. Thorax about as long as broad, scarcely 

 l)roader than the head, and distinctly narroAver than the 

 elytra; densely and extremely finely punctured, so that an 

 impunctate line along the middle is very indistinct, the 

 colour scarcely paler than that of the head. Elytra a good 

 deal longer than the thorax, obscure testaceous, Avith the 

 disc a little infuscate, closely and finely punctured. Hind 

 body very densely and finely punctured, quite opaque. 

 Legs yelloAv; front tarsi not in the least dilated, hind tarsi 

 with the basal joint a good deal longer than the 2nd. 



The male characters are very slight ; the ventral plate 

 of the 7th segment of the hind body being a little emargi- 

 nate at the extremity in that sex. 



St. Paulo ; three individuals. 



This species appears to be closely allied to the common 

 and widely distributed L. ochracea, but is so much 

 smaller that it cannot be confounded therewith. L. infus- 

 cata, Er., from Columbia, is probably a very close ally of 

 this species, but according to Erichson's description differs 

 in the colour of the hind body. 



4. Lithocharis diffinis, n. sp. Rufescens, capite, 

 elytrorum apice abdomineque apicem versus plus minusve 

 infuscatis, pedibus testaceis, dense subtilissime juinctata ; 

 prothorace quadrato, linea media impunctata. Long. 

 Corp. 2 lin. 



Similar in size, form and pvmctuation to L. ochracea, 

 but Avith the head larger, it being almost broader than the 

 thorax ; rather larger than L. simplex, and with the labrum 

 furnished in the middle Avith two obscure distant teeth ; in 

 other respects it appears to agree exactly Avith L. simplex. 



The 7th segment of the hind body has the hind margm 

 of the ventral plate quite simple in the male,_ so that I am 

 not aware of any external character by Avhich the sexes 

 can be distinguished. 



Ega ; tAvo specimens. 



5. Lithocharis comes, n. sp. Rufescens, capite tho- 

 raceque obscurioribus, elytris sordide testaceis, apice 

 dilutioribus, pedibus testaceis, dense obsoleteque punctata; 



TRANS. ENT. SOC. 1876.— PART II. (jUNE.) 8 



