CORIXIDiE. 599 



very fine, close, irregular, broken, jagged streaks or lines, form- 

 ing on the corium by tlieir contact 3 longitudinal lines ; cJaviis 

 at the base inwardly clear; memlrane with fine, irregular, 

 black reticulation. Palce, in the $ broad-cultrate, above 

 convex, in front rounded; base, on the underside, a little 

 widened. 



Head brown; Croion ; in the ^, angularly prominent poste- 

 riorly ; Face paler, the depression elliptic, reacliing upwards a little 

 beyond the lower angles of the eyes. 



Thorax. — Pronotum with 7 — 9 fine black lines, sometimes short- 

 ened in the middle ; sides gently rounded, apex obtuse, almost 

 rounded ; the longitudinal middle line sometimes visible as a short, 

 slight keel in front. 'Elytra: Glaviis ; at the base inwardly clear 

 of markings, the remainder with fine, close, black, irregular, con- 

 fluent lines, short and parallel on the inner margin ; Co^num with 

 very fine, close, broken, angulated, subparallel, black lines, forming 

 on the disk by their points of contact 3 longitudinal streaks ; ante- 

 rior marginal channel and to the apex of the corium pale yellowish 

 or whitish-gray, the inner edge brown ; posteriorly 4 or 5 dusky 

 spots ; line of the membrane-suture distinct, pale, without a black 

 line joined to it ; Memlrane with fine, irregular, subreticulate streaks, 

 radiating and parallel on the margins ; anterior margin brown, the 

 others pale. Sternum black in the middle, sides and xyphus pale 

 yellow. Legs pale yellow ; 1st pair, ^j«?^, in the ^ , broad-cultrate, 

 above convex, in front rounded, base on the underside a little 

 widened, lower margin straight ; in the ? narrower, more parallel, 

 apex obliquely, roundly pointed, base not widened ; 2nd pair, tarsi 

 brownish at the apex ; 3rd pair, tarsi, 1st joint with a fine, brown 

 line down the middle, 2nd black. 



Ahdomeji above black, Connexivwn pale ; underside pale yellow ; 

 in the ^ , the 1st 3 or 4, in the ? , the base and sometimes 3 or 4 

 spots on the sides, black. 



Length, 2^ — 2f lines. 



Two specimens from the Cambridge Fens (G. S. Crotch). 



