PLATE CXX. 



Chermes laricis. (Page 33.) 



Fig. 1. — Apterous female which has been hatched 

 from a pseudo-egg of the foundress, t. Secretion from 

 one of the abdominal pores. 



Fig. 2. — Pupa. The apical ring has three sharp 

 terminal spines. 



Fig. 3. — Antenna of fig. 1. 



Fig. 4. — Imago showing the peculiar manner in 

 which the upper cubital vein takes its origin. 



Chermes atratus. (Page 39.) 



Fig. 5. — Imago. The great development of the 

 thoracic region here seen is a characteristic of 

 Chermes. 



Fig. G. — Eye and antenna of the last. The deeply 

 ringed character of the joints, and the auditory (?) 

 tubercles at b are worthy of note. 



