148 LTenptera-Heteroptera. 
legs long and slender; coxee very remote, inserted at the 
sides of the sternum ; claws apical. ; 
H. stagnorum, Linn.—Linear, black; pronotum and 
base of the head, and of the first and second antennal joints 
more or less rufescent; legs testaceous, apices of the 
femora and tibizw and the tarsi darker; surface dull; 
antenniferous tubercles shining, second joint of the antennee 
thinner than the first, about twice its length, third about 
three and a half times as long as the second, fourth longer 
than the second. Head between the antenne wider than 
across the eyes; pronotum slightly strangulated in the 
middle, its sides sinuate posteriorly when viewed laterally ; 
dise with a central impressed line ; elytra, when developed, 
with two small discal tubercles, and pale between the 
nerves; beneath clothed with fine silvery pubescence. 
L. 11-12 mm. 
Generally distributed, on stagnant water. 
VELIINA. 
a 
Elongate, 6-7 mm. in length, first joint of antennz 
long, curved : é : ; , ' . VELIA, 
Short and broad, 1j-1} mm. in length, first joint of 
antenne short . : : A A - “ - Microvetia. 
VELIA, Latr. 
A genus of only two or three species as far as Europe is 
concerned, which live on the surface of running water, 
although they have been found occasionally on stagnant. 
The Rey. W. F. Johnson reports the capture of our British 
species, V. currens, on stagnant water in Ireland, ata great 
distance from any stream; the species are dimorphous, 
the winged form of currens beg much rarer than the 
apterous. Head short; eyes large, not quite touching the 
pronotum ; ocelli wanting ; face short, nearly perpendicular ; 
antenniferous tubercles rounded; antennze with the first 
