CORIXIDiE. 595 



to the end of the embolium, 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. 



Sjjecies 3.— -Corixa aitinis. 



CoRiXA AFFixis, Zeac/i, Trans. Lin. Soc. xii, IS, 8 (1817). 

 CoiiiSA ATOMAEIA, (//%.) Fied. Spcc. Coris. 15, 4, t. 1, fig. 5, palac 

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



Fuscous black. Pronotum with 13 — 14 fine, transverse yellow lines, 

 abbreviated and confluent in places. 



Seacl pale yellow ; face in the ^ with the depression reaching 

 to between the eyes. Eyes black. 



Thorax. — Pronotum with 13 — 14 fine, almost straight, transverse 

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

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

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

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

 A'erse 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-white, base of the Emlolium 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. Leys deep yellow ; 1st pair, palce, in the ^ , broad cultrate, 

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

 lunate ; 3rd pair, tibia and tarsi browner tban the thighs, cilia 

 black. 



