PLATE XXIV. 



Phil^nus spumarius. (Page 84.) 



Fig. 1. — The imago, showing the hind legs with the 

 whorls of spines. Var. P. populi. 



Fig. 1 a. — The pupa, with bubbles of air blown from 

 the anus of the insect. 



Fig. 1 h. — A mass of foam with the larva of Philcenus 

 crawling from it. 



Fig. Ic. — Antenna of the larva, showing the com- 

 pound nature of the seta. 



Fig. 1 d. — Leg of larva, showing the undeveloped 

 nature of the tarsus. 



Fig. 1 e. — Double claw and bristles of the foot. 



'O' 



Phil^nus spumarius. Pages 86 and 87. 



Fig. 2. — Variety known as P. kucocephalus. 

 Fig. 3. — Variety known as P. fasciatus. 



Phil^nus exclamationis. (Page 87.) 



Fig. 4. — Imago. This is the smallest of the British 

 Cercopida3. 



