CORK1NA. 17 



FAMILY 1. COREID^E. 



Head: Crown more or less quadrangular; Face narrow, often 

 greatly deflected, and with the central lobe spinose. Antenna :' basal 

 joint often longer than the head, the last joint more or less thickened. 

 Pronotum narrow in front, wide behind, hexangular or trapeziform, 

 the hinder angles sometimes greatly raised and produced. 



Abdomen wide, connexivum broad. Genital segments on the under side, 

 especially in the 9, more or less visible. Gen. 1, Syromastes ; 2, Enoplops; 

 3, Gonocerus; 4, Verlmia ; 5, Coreus ; 6, Spathocera ; 7, Pscudophlaus ; 

 8, Ceraleptus. 



FAMILY 2. CORIZID^E. 



Head short, broad, posteriorly incrassated, and then constricted 

 before its insertion into the thorax. Antenna : basal joint shorter 

 than the head, apical joint long, a little thickened. Eyes prominent. 

 Pronotum short, trapezoidal. Corium mostly more or less trans- 

 parent. 



Abdomen. Genital segments tapering, retractile. Gen. If Therapha ; 2, 

 Corizus ; 3, Myrmus. 



FAMILY 3. CHOROSOMIDJE. 



Long, narrow. Head : Crown long, sides parallel ; Face angular, 

 lobes of nearly equal breadth, the central one slightly the longest. 

 Antenna : basal joint long, thick, the rest tapering, the apical joint 

 not being thicker than the third ; second and third in length sub- 

 equal. Pronotum long trapezoidal. Elytra much shorter than the 

 abdomen. Corium transparent. Tarsi : first joint longer than the 

 other two together. 



Abdomen. Genital segments tapering, more or less retractile. Gen. 1, 

 Chorosoma. 



