Upii 
Head piceous; facial depression in c? , deep, extending forwards to the middle, 
the eyes. 
Thorax :^ pronotum, clavus and corium delicately rastrate. Pronotum rounde 
behind J disc with 8—9 very narrow, impressed black lines, the intermedial 
yellow lines rather broader, the first three or fonr straight, the rest morec 
less curved downwards, frequently shortened in the middle and confluen 
Elytra : davus with fine, pale yellow, transverse lines ; on the basal half six, 
Beven parallel, mostly entire, but sometimes fui-cate at the ends, the first thrt 
or four slightly broader than the others; on the 2nd half irregular, broke. 
or angularly twisted : corium with delicate, irregular, much broken and angt 
larly twisted, pale yeUow, transverse lines, sparser on the posterior inner angl 
leaving there a short, longitudinal black streak ; membrane-suture narrow 
clear pale yellow, marginal channel narrow, pale Kvid : memhrane wit 
minute hieroglyphic markings, the middle more or less free, the margins blacl 
Sternum and side plates pale yellow. Legs yellowish: 1st pair, tibiw, g 
arcuate, the upper-side, except the apex, black ; palw, ^ , viewed from the aid 
cultrate, the upper-side anteriorly, broadly arcuate, apex broad, flattened m 
curved inwards, outside black, but the colour not extended to the apex: ? 
cultrate, narrow; slightly curved, apex acute : 2nd pair; thighs, on the basj 
half, pale, the apical half infuscated, darker on the upper edge ; tibios iufhs 
cated outwardly, tarsi yellowish with a black spot at the end : 3rd pair ; thigli 
pale ; tibicB broadly black on the sides ; tarsi yellow with black cilia, 1st join 
with a short, triangular, apical, black spot on the inner side, its outer angl 
generally not extending quite to the black outer margin, but sometime 
touching it ; 2nd joint clear yeUow with a delicate black margin. 
Abdomen above, infuscated in the middle lengthwise, the sides and connexivum pal 
yellow ; beneath infuscated in the middle, the sides and posterior margin o 
the segments yellowish. Length Splines 
By the form of tlie pales, ^, closely allied to C. Wollastoni, bu: 
differs in colour, being brown-black, not brown ; in the greater sharp 
ness, distinctness, and paleness of the lines on the elytra ; and especiall] 
in the short form of the black spot on the posterior tarsi, wbicl 
in C. 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." 
CORIXA COGNATA, 01. Sp. 
Yolk-yellow with black markings. Fronotiim with seven very fine 
impressed black lines, nearly all of them shortened and joined to others, 
Glaviis with the first five or sis 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. 
