CORIXID^E. 595 



to the end of the embolitim, beyond that livid gray inwardly and 

 black spotted outwardly ; anterior margin from the end of the 

 embolium to the apex narrowly black. Sternum pale yellow, black 

 in the middle ; xyphus yellowish. Legs yellow ; 1st pair, palce 

 cultrate ; in the $ broad, curved on the upper side, somewhat sud- 

 denly rounded from above at the end ; in the ? much narrower and 

 more gradually pointed ; 3rd pair, cilia black. 



Abdomen pale yellow, base fuscous. 



Scarce. In brackish water in ditches at Gravesend, April, 



/Species 3. CORIXA AEFINIS. 



COEIXA AFFINIS, Leach t Trans. Lin. Soc. xii, 18, 8 (1817). 

 CORISA ATOMARIA, (/%.) Fieb. Spec. Coria. 15, 4, t. 1, fig. 5, pake 

 (1851) ; Europ. Hem. 92, 8 (1861). 



Fuscous black. Pronotum with 1314 fine, transverse yellow lines, 

 abbreviated and confluent in places. 



Head pale yellow ; face in the $ with the depression reaching 

 to between the eyes. Eyes black. 



Thorax. Pronotum with 1314 fine, almost straight, transverse 

 yellow lines, abbreviated and confluent in places ; side angles yel- 

 lowish; posterior margin narrowly brown, with fine, short, black 

 streaks jutting out from it and joining the end of the transverse 

 black lines. Elytra with undulating, angulated, interrupted, trans- 

 verse yellow lines, in places narrower, so that the elytra appear 

 slightly shaded ; the lines on the base of the clavus straighter and 

 broader than on the disk, on the inner and posterior margins of the 

 membrane parallel and directly transverse. Clavus and Corium 

 almost imperceptibly punctured ; Corium with distant, very fine, 

 long, subprominent yellowish hairs ; anterior marginal channel dull, 

 yellowish-whifce, base of the Embolium with a black middle line, be- 

 yond the embolium black shaded into livid posteriorly, anterior 

 margin black from the end of the embolium to the apex of the 

 elytron. Sternum yellow, black in the middle, xyphus black at the 

 base. Legs deep yellow ; 1st pair, palce, in the , broad cultrate, 

 in front widened and rounded, somewhat truncate ; in the $ broad 

 lunate ; 3rd pair, tibiae and tarsi browner than the thighs, cilia 

 black. 



