[Tydrometride. 15 
1 
pronotum considerably widened posteriorly, its dise widely 
rufescent on the posterior lobe with a darker dorsal line, 
anterior lobe dark, with a rufescent dorsal line, sides below 
the lateral carinze fulvous ; elytra black ; abdomen black, 
connexivum pale, its extreme edge darker, its apex termi- 
nating in an acute but not sharply-pointed angle, which 
reaches to about the apex of the first genital segment ; lees 
ferruginous, anterior femora outwardly black; mesopleuree 
very wide, projecting far beyond the sidés of the pronotum, 
especially at the region of the intermediate cox, clothed 
with greyish silvery pubescence next the pronotum, then 
with a band of golden pubescence below that, the under- 
side of the sterna silvery; abdomen beneath with a fine 
central carina and a very shallow depression along each side 
of it, sixth ventral segment in the ¢ deeply and bisinuately 
emarginate. 
L. 13 mm. 
A subalpine species ; Ox Edge, Buxton, W. W. Fowler ; 
Loch Rannoch, Marshall ; Perthshire, McLachlan ; North 
Wales, H. Francis; Pitlochry, Norman; Orkneys and 
Aberdeen, Reuter ; Ben Nevis, Isle of Harris, Dale. 
G. thoracica, Schum.—A much slenderer species than 
the last, though like it in the distribution of colour; the 
rufescent colour is, however, paler and of a yellower tinge, 
and the dark ground colour of the insect is rather paler 
and more greenish brown; eyes more prominent; prono- 
tum less widened behind, the paJe submarginal band not 
continued on to the anterior lobe; legs with the first joint 
of the posterior tarsi nearly twice as long as the second ; 
the mesopleuree are much less produced laterally than in 
Costx, and the abdomen is not impressed longitudinally at 
the sides of the central carina; sixth ventral segment in the 
male deeply and bisinuately emarginate. 
L. 11-12 mm. 
Common, and generally distributed. 
G. aspera, [ich.—Rather shorter than thoracica, and 
