﻿246 LApril, 



Head piceous ; facial depression in g , deep, extending forwards to the middle of 

 the eyes. 



Thorax .- pronotum, clavus and corium delicately rastrate. Pronotum ronnded 

 behind ; disc with S — 9 very narrow, impressed black lines, the intermediate 

 yellow lines rather broader, the first three or four straight, the rest more or 

 less curved downwards, frequently shortened in the middle and confluent. 

 Elytra : clavus with fine, pale yellow, transverse lines ; on the basal half six or 

 seven parallel, mostly entire, but sometimes furcate at the ends, the first three 

 or four slightly broader than the others ; on the 2nd half irregular, broken, 

 or angularly twisted : corium with delicate, irregular, much broken and angu- 

 larly twisted, pale yellow, transverse lines, sparser on the posterior inner angle, 

 leaving there a short, longitudinal black streak ; membrane-suture narrow, 

 clear pale yellow, marginal channel narrow, pale livid : membrane with 

 minute hieroglyphic markings, the middle more or less free, the margins black. 

 Sternum and side plates pale yellow. Legs yellowish : 1st pair, tibice, $ , 

 arcuate, the upper-side, except the apex, black ; paloj, $ , viewed from the side 

 cultrate, the upper-side anteriorly, broadly arcuate, apex broad, flattened and 

 curved inwards, outside black, but the colour not extended to the apex : 9 j 

 cultrate, narrow ; slightly curved, apex acute : 2nd pair ; thighs, on the basal 

 half, pale, the apical half infuscated, darker on the upper edge ; tibice infus- 

 cated outwardly, tarsi yellowish with a black spot at the end : 3rd pair ; thighs 

 pale ; tibim broadly black on the sides ; tarsi yellow with black cilia, 1st joint 

 with a short, triangular, apical, black spot on the inner side, its outer angle 

 generally not extending quite to the black outer margin, but sometimes 

 touching it ; 2nd joint clear yellow with a delicate black margin. 



Abdomen above, infuscated in the middle lengthwise, the sides and connexivum pale 

 yellow ; beneath infuscated in the middle, the sides and posterior margin of 

 the segments yellowish. Length 3 lines. 



By the form of the palce, $ , closely allied to G. Wollastoni, but 

 differs in colour, being brown-black, not brown ; in the greater sharp- 

 ness, distinctness, and paleness of the lines on the elytra ; and especially 

 in the short form of the black spot on the posterior tarsi, which 

 in G. Wollastoni reaches far up the inner side of the joint. 



Several examples taken by Mr. Bold in September, at Gosforth, 

 " in a lake into which a burn runs." 



COBIXA COGNATA, fl. sp. 



Yolk-yellow with black markings. Pronotum with seven very fine, 

 impressed black lines, nearly all of them shortened and joined to others. 

 Clavus with the first five or six lines mostly straight, the rest irregular. 

 Corium with short, thick, irregular lines, posteriorly and inwardly inter- 

 rupted by a longitudinal streak. Legs yellow, palce, <$ , roundly dilated 

 on the upper-side anteriorly; tarsi; 3rd pair, on the apex of the 1st 

 joint a small, black, triangular spot. 





