CORIXID.E. 597 



hrane witli markings like those on the corium, but less transverse, 

 on the inner margin furcate ; margins black, pale on the edge. 

 S(ernum black ; xyphus black or livid ; side lobes whitish-yellow. 

 Z/effs pale yellow ; 1st pair, (^ , thighs thick, widened outwardly ; 

 palce semi-oval, pointed, at the base beneath broader than the tibiae ; 

 ? , cultrate, pointed, above much and regulai'ly convex, base scarcely 

 wider than the tibiae ; 2nd pair, tarsi black at the apex ; 3rd pair, 

 tihicB dusky, tarsi black, the 1st joint indistinctly paler on the 

 sides. 



Abdomen above and beneath black ; Connexiviim pale-yellowish. 



Length, 2|— 2f lines. 



IN'ot rare in the Cambridge Fens ((?. B. Crotch). 



Species 5. — Corixa Stall 



CoRisA. Stalt, Fieb. Verliandl. k. k. zool. bot. Gesel. (1865.) 



Black, with close, yellowish-white markings, shining. Fronotum 

 short, finely rastrate, with 7 pale-yellow lines, Clavus very 

 finely rastrate, with transverse yellow lines, at the base 4 or 5 

 very broad, unequal, the rest paler, narrow, irregular ; Coritim 

 very finely punctured, the lines short, twisted, hieroglyphic, 

 intersected by 3 black lines. Palce of the ^ long-semi- 

 cordate. 



Head yellow ; Croion posteriorly somewhat raised, and on the 

 posterior margin produced in a small, obtuse angle ; Face ; in the 

 ^ flattened, the depression slight, somewhat equally flat through- 

 out, reaching upwards between the lower angles of the eyes. 



Thorax. — Fronotum not prolonged, finely rastrate, the longitudinal 

 middle line somewhat distinctly raised in front ; with 7 equal, yel- 

 lowish-white lines, the 2 middle ones generally united in 1 before 

 their ends ; side margins narrowly yellowish-brown. Elytra ; Clavus 

 very finely rastrate ; at the base with 4 or 5 very broad, irregular, 

 or broken yellow lines, and correspondingly narrow, intermediate 

 black ones ; the remainder with short, narrow, twisted, hieroglyphic 

 yellow lines ; Corium with close, short, narrow, twisted, somewhat 

 transverse yellow lines, divided into 3 or 4 sets by 3 longitudinal 

 black lines, one just before the edge of the anterior channel, one 

 near the inner margin, and one less perceptible between them ; an- 



