372 SUPPLEMENT 



telephorus flies with facility and promptness, especially when 

 the sun is shining. Coupling takes place in a very little 

 time after the final metamorphosis ; but it is necessary that 

 the male should choose his time and act with precaution, if 

 he does not wish to run the risk of being devoured. 



Under the head of the larva of telephorus is found the 

 labrum, to which are attached the four barbies. It is mobile. 

 The larva can push it very forward, and afterwards draw it 

 back into its cavity, which it does continually when it walks, 

 for the purpose of feeling at the same time, with the barbies, 

 all the objects that it meets. Underneath the last ring is the 

 anus, which has a sort of edge, of a clear brown, a little 

 raised, so that it forms a sort of nipple, with a sinking in the 

 middle. When the larva walks, it applies, at each step, this 

 nipple, against the plane of position, and makes use of it as 

 a seventh foot. These larvae live in the earth, the humidity 

 of which appears to be necessary to them ; and if it is desired 

 to preserve them in existence, it is necessary to furnish them 

 frequently with fresh and humid earth. When they are 

 placed on the surface of the ground they very quickly bury 

 themselves beneath it. M. Latreille was inclined to think 

 that these larvae live on roots, but from the observations of 

 Degeer, it appears that they are also carnivorous, and in 

 case of necessity will feed on individuals of their own species, 

 as well as on earth-worms. 



Towards the end of the month of May, the larvae of T. 

 fuscus change into nymphs in the ground, without presenting 

 the slightest appearance of a shell. These nymphs are nearly 

 six lines in length, and their body is a little arched. Their 

 colour is of a very pale red, or reddish white. One may 

 clearly distinguish all the parts of the perfect insect, the 

 arrangement of which is the same as in so many other nymphs. 

 The belly, which the nymph moves from time to time from 

 one side to the other, is divided into rings, and terminated by 



