206 Prof. J. O. Westwood on a 



the middle ; the second extends from the base of the elytra 

 to the inside of the subapical tubercle ; the third and fourth 

 extend from the base, but do not quite reach the tubercle, 

 and the fifth and sixth are gradually shorter, all these 

 strias having punctures in their deepest part ; the legs are 

 black, with the tarsi pitchy. The maxillary lobes are 

 simple, and densely setose, the mentum broad, with the 

 fore margin deeply emarginate, and the mesosternum is 

 broad, rounded at the sides, and obtuse in front. The 

 anterior tibios are strongly tridentate. 



Liostraca (?) rufo-plagiata. (PI. IV. fig. 4.) 



Oblonga subparallela depressa, nigra nitidissima, elytris 

 proflmde striatis, singulo plaga magna laterali ferruginea 

 ante medium notato. 



Long. Corp. lin. 5|. 



Habitat Madagascar. In Mus. Higgins. 



This species has the prothorax large, wide, and bv;t 

 slightly narrowed from the middle of the straight lateral 

 margins to the eyes, the head being wide, and the humeral 

 angles of the elytra not very greatly produced, so that the 

 insect has a more parallel appearance than usual. The 

 head is very finely punctured, with the clypeus rounded, 

 its fore-edge slightly emarginate. The pronotum is very 

 glossy, having the lateral and posterior margins with a 

 slender raised edge, it is subdepressed, and has its anterior 

 portion, especially at the sides, punctured. The elytra 

 are glossy and black, finely punctured at the base, the 

 sides near the shoulders considerably emarginate, each 

 elytron having a large lateral ferruginous patch between 

 the shoulders and the middle, and four deep strife, of 

 Avhich the lateral one is formed of deep punctures ; the 

 podex is black, with a raised central longitudinal line. 



The maxillfe have the terminal lobes simple, and strongly 

 setose, the mentum is cup-shaped, deeply notched in the 

 middle of the fore margin, and the mesosternum is pro- 

 duced into a triangular prominent point between the 

 middle legs. The fore tibiae are strongly tridentate. 



Gametis (?) clytus. (Ph IV. fig. 5.) 



Elongatus gracilis clytiformis, niger, velutinus, pro- 

 thorace fere circulari, punctato, undique albo tcnue 

 marginato ; scutclli apice albo ; elytris macula laterali 



