322 MOTIONS OF INSECTS. 
straw (Galium), on which it feeds; and by these will sup- 
port itself against eravity 5 for both this and C goettin- 
gensis will walk upon the hand with their back down- 
wards, and it then requires a rather strong pull to disen- 
gage them from their station.—The whole tribe of wee- 
vils (Curculionide) are also furnished with these cushions, 
but not always upon all their joints, some having them 
only at their apex; and the palm-weevil (Calandra Palma- 
rum, F.) at the extremity solely of the last joint but one. 
—Those brilliant beetles the Buprestes have also these 
cushions, as have likewise the numerous tribes of capri- 
corn-beetles (Cerambycide). ‘The larvee of these being 
timber-borers, the parent insect is probably thus ena- 
bled to adhere to this substance whilst it deposits its eggs. 
Indeed in some species of the former genus the cushions 
wear the appearance of suckers.— While the linear spe- 
cies of Helops, F. are without them, they clothe all the 
tarsi of HZ. eneus*. In two other genera of the same 
order, Silpha and Cicindela, the anterior tarsi of the 
males are furnished with them; in these therefore they 
may be regarded, like the suckers of the larger water- 
beetles (Dytisc?), as given for sexual purposes. The 
three first joints of the anterior tarsi of many of the lar- 
ger rove-beetles (Staphylinus, L.) are dilated so as to 
form, as in the last-mentioned insects, an orbicular pa- 
tella, but covered by cushions. Since in them this is not 
peculiar to the males, it is probably given that they may 
be able to support their long bodies when climbing. 
But the most remarkable class of climbers consists of 
* The insect alluded to under this name, answers to Fabricius’s de- 
scription of H, eneus, but from Olivier’s figure appears distinct from 
it. 
