﻿1870.- 247 



Head yellow-brown ; facial depression, in $ , oval, deep, extending forwards to the 

 middle of the eyes. 



Thorax : pronotum with a faint anterior keel and seven very fine, impressed, black, 

 transverse lines, all, or nearly all, shortened and joined to others, the yellow 

 intervals wider. Elytra : claims with the first five or six black lines mostly 

 straight with wider intervals, the rest irregular, angularly undulating : corium 

 with short, thick, irregular, jagged and twisted transverse black lines mostly 

 connected just before the outer ends, (the yellow intervals broader and more 

 irregular in the ? than in the $ ), on the posterior inner angle a short, longi- 

 tudinal, black streak ; marginal channel entirely yellow ; membrane-suture 

 yellow, narrow, distinct : membrane with twisted, hieroglyphic markings, sub- 

 parallel round the margin ; margin narrowly black. Sternum entirely yellow. 

 Legs yellow : 1st pair ; tibim arcuate, in the $ brown above ; paltz, $ , on the 

 upper-side, anteriorly, roundly dilated to the apex, with a brown line on the 

 edge : 2nd pair ; tibice embrowned, tarsi with a brown spot at the apex : 3rd 

 pair; 1st joint at the apex, on the inner side, with a small, black, triangular 

 spot, of which the outer angle just touches the exterior margin of the joint, 

 2nd joint clear, the margins with a fine black line ; cilia black posteriorly, 

 yellowish on the basal half of the 1st joint. 



Abdomen pale yellow, the base of the segments, especially in the S , infuscated. 



Length 2f — 3 lines. 



DistiDguished from all other species by its yellowness. Comes 

 next to G sodalis in the character of the palse and in the form of the 

 spot on the posterior tarsi, but differs widely in colour and in the 

 bolder character of the markings on the elytra. 



One $, Loch Grienan, Eothesay, September, 1866 {Douglas). 



One $ and two ? , Loch Leven, August, 1868 {Power). 



Coeixa Shaepi, Doug. 8f Scott. 



Of this species, described last year from a single ? (Ent. Mo. 

 Mag., v, 295), Dr. F. Buchanan White was fortunate enough last July 

 to take two or three specimens in the same loch where he found O. 

 alpestris, and we are thus enabled to give the distiuctive characters of 

 the male. 



<$ . Facial depression broad, deep, extending beyond the eyes on 

 the frontal prominence. Tibice arcuate, narrow at the base, sub-clavate, 

 longitudinally trigonate, the angles sharply defined. Palce cultrate, 

 broad, the base narrower than the end of the tibiae, the upper margin 

 gradually rounded to the obtuse apex, and anteriorly inclined inwards, 

 the lower margin gradually widened from the base and then slightly 

 sinuate to the apex ; seen from the inside, the upper margin, from the 

 base for nearly half its length, is depressed and turned down sharply 



