280 
SYSTEMATIC ARRANGEMENT. 
which are now properly excluded, as their forms and 
structure were too diversified to be compatible with 
the notion now formed of a generic group. The Ful- 
gorse, strictly so called, are such as present the follow- 
ing characters. 
The antennae have the second joint of a globular 
shape, and covered with pretty large granulations, 
the terminal seta inserted in the centre of a minute 
globose joint ; ocelli two, placed a little before and 
under the eyes, between them and the antennae; 
forehead more or less produced anteriorly ; labrum 
terminating in an acute point ; sucker composed of 
three joints, its extremity extending at least as far 
as the insertion of the posterior legs ; hemelytra not 
so broad as the wings, the length greatly exceeding 
the breadth ; legs elongated, adapted for leaping, the 
hinder thighs strongly spined ; prothorax not so broad 
as the metathorax, and somewhat emarginate on its 
hinder margin. 
Even in the acceptation to which the above defini- 
tion restricts it, the genus comprehend a considerable 
amount of species. The greater number of them are 
insects of large size, and warm if not brilliant colours. 
The prolongation of the forehead, and the extraor- 
dinary forms it assumes, confers on them a peculiar 
aspect, at once distinguishing them from all other 
hemipterous tribes. 
The larger kinds have long been said to be lumi- 
nous, and this belief has been so general, that they 
have obtained the name of fire-flies, mouches a feu, 
and lantern-flies. But recent travellers agree in 
