598 CORIXINA. 



terior marginal channel dull yellowish-white, with a longish black 

 spot posteriorly, not extending to the apex ; inner posterior angle 

 black, the colour extending -^rd along the nienibrane-suture, the rest 

 of which is narrowly pale yellow, followed by a black line ; Membrane 

 with yellow markings similar to those on the clavus and corium ; 

 margins brown, pale on the edge. Sternum black, side lobes pale 

 yellow ; Prosternum ; lobes with parallel sides ; Metasternum ; 

 xyphus short, equilaterally triangular, depressed, black. Legs pale 

 yellow, except the coxae which are black, yellowish at the ends : 1st 

 pair, thighs with a callosity in the middle ; pales ; in the $ long- 

 semicordate, suddenly and greatly convex from the base on the 

 upper side for about rd the length, then going straight to the 

 obtuse apex ; underside straight ; in the $ cultrate, not widened at 

 the base, slightly curved on the upper side to the apex ; 2nd pair, 

 tibicB brownish at the end ; tarsi distinctly black at the end ; 3rd 

 pair darker yellow ; tibice brown on the inner edges ; tarsi ; 1st 

 joint in the middle, 2nd entirely, black. 



Abdomen; in the <$ t above and beneath black, sides narrowly 

 dusky yellowish ; Genital segments brown posteriorly ; in the $ 

 above black, sides and Conneximim whitish-yellow ; beneath whitish- 

 yellow, the 1st 2 or 3 segments black in the middle ; Genital seg- 

 ments blackish. 



" By the pales allied to G. Mayri, Fieb., by the marking of the 

 corium to G. Fieberi, "Walleng., but the latter has the line of the 

 membrane-suture broad and clear, different palse, yellow xyphus, 

 &c." (Fieberinlitt.'). 



Length, 2~2f lines. 



Not scarce in brackish water in ditches at Gravesend in April and 

 May. 



Species 6. COEIXA HIEROGLTPHICA. 



COHIXA HiEEOGLYpniCA, 1. Duf. Recli. 86, 2, figs. 8587 (1833). 



Burm. Handb. ii, 188, 3, excl. syn. (1835). 



CORISA lieb. Syn, Coris. No. 8 (1848) ; Spec. Coris. 22, 



19, 1. 1, fig. 20, pate (1851) ; Europ. Hem. 93, 



13 (1861). 



Above yellowish-gray, with fine, black, transverse markings, shining. 

 fronotwn with 79 fine black lines, Clavus and corium wltb 



