270 CORTICICOLINA. 



and covered with glossy hairs. Eyes semiglobose, prominent. Rostrum 

 longer than the head, of varying length, lying in a narrow, close- 

 fitting channel ; 1st joint extremely short. 



Thorax. Pronotum transverse, 6-sided, with foliaceous side mar- 

 gins, posterior angles produced over the base of the elytra ; disk 

 with 4 longitudinal keels, and a callosity within the hinder or poste- 

 rior angles. Scutellum long, triangular, the sides raised above the 

 elytra. Elytra posteriorly lying within the connexivum ; Clavus very 

 narrow, broadest at the base, as long as the scutellum ; Corium sub- 

 membranous, narrow, extended on the exterior but abbreviated on 

 the interior margin ; anterior margin at the base roundly widened 

 and reflexed for about \ the length ; posterior margin bisinuate or 

 angulated, strongly developed ; nerves strong and raised, forming 2 

 concave cells, the outer one lanceolate with transverse reticulations, 

 the inner one long-triangular, about -J- the length of the outer cell ; 

 Membrane broad, posteriorly rounded, inner margin straight ; with 

 4 long nerves, forming 3 principal, long, reticulated cells, which do 

 not reach the margins, which, all round, are equally broad, and finely 

 crenate. Sternum with a rostral channel, on the Prosternwn deep 

 and wide, on the Meso- and Metasternum linear and shallow. Legs 

 thin, short. 



Abdomen above, concave ; Connexivum broad, horizontal, outer 

 margin dentate, the anterior margin of each segment being narrower 

 than the posterior margin of the preceding one. Underside with a 

 fine, longitudinal, linear channel ; the segments slightly shorter in 

 the middle, their posterior margin divergent obliquely to the sides, 

 in the $ more roundly on the 5th and 6th segments ; in the ? the 

 5th is shortened and raised in the middle for the reception of the 

 long genital segments, the 6th appearing at the sides of the latter 

 only as a triangular plate. 



Genital segments ; In the <$ , one only visible, filling the deep, 

 rounded excision on the 6th abdominal segment; on the upper 

 surface rounded behind ; on the underside convex and prominent, 

 then deflected, widened, and extended posteriorly beyond the upper 

 side, as a continuation of the connexivum, in a foliaceous plate which 

 is in the middle cleft, and deeply notched. In the ? , above, 1 

 segment is visible, posteriorly widened and extended as a continua- 

 tion of the connexivum in long, projecting lobes ; beneath, 2 segments 

 (the 2nd and 3rd) are visible, rarely the end of the 1st is exserted ; 

 these segments lie in the opening of the last 2 abdominal segments, 



