COREINA. 109 



Section 2.—C0REINJ^ 



Family L— COREIDtE. 



Ge?ms 1. — Syromastes, Lafr. 

 Broad, stout, elliptic. 



Head. — Croion quadrangular, horizontal ; at the end, between the 

 antennae, with two small spines pointing inwards ; Face triangular, 

 small, vertical, the base only of the central lobe visible from above. 

 Antennce : tubercle short, broad, inserted at the end of the crown 

 on the outer side ; 1st joint trigonate, long, strong, curving out- 

 wardly, the base attached to the tubercle by a petiole on the outer 

 side ; 2nd and 3rd joints cyHndrical, longer than the 1st ; 2nd longer 

 than the 3rd ; 4th fusiform, shorter than the 1st, thicker than the 

 2nd or 3rd. Eyes rather large, roixnd, inserted on the sides of the 

 head, near the base. Ocelli equally distant from the eyes and each 

 other, prominent. Bostnim strong, reaching beyong the 2nd pair 

 of coxae, 1st and 2nd joints long ; base in a deep channel, the sides 

 of which are in front abruptly produced, hindwardly rounded. 



Thorax. — Pronofum hexangular, greatly deflected in front ; an- 

 terior margin nearly straight, not wider than the head ; sides widely 

 divergent, very sinuate, raised, hindwardly reflexed, and then pro- 

 duced into a very broad, horizontal angle ; hinder sides long, 

 straight, produced and rounded posteriorly ; posterior margin wide, 

 across the scvitellum straight ; disk in front depressed, hindwardly 

 convex, posteriorly with a transverse ridge longer than the base of 

 the scutellum. Scutellum horizontal, flat, short, triangiilar. Elytra 

 not so long as the abdomen ; Corium with the nerves fine ; Mem- 

 hrane filled with a network of nerves, which (except 2 or 3 at the 

 inner basal angle) diverge from a cross nerve near the corium, the 

 space intervening forming a large cell. Sternum with a narrow 

 rostral channel, deepest on the metasternum ; hinder margin of the 

 Metasternum much produced over the abdomen. Legs strong ; 

 thighs greatly, but gradually, incrassated ; on the underside with a 

 channel, of which the edges are beset with very short blunt spines ; 

 tibi(B on the upperside wdth a narrow channel ; tarsi ; the 1st 

 joint as long as the 2nd and 3rd together. 



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