PLATE CXV. 



TlIELAXES DRYOPHILA. (Page 8.) 



Fig. 1. — Foundress, or queen Aphis. 



Fig. 2. — Head and antenna of the same. a. Rudi- 

 mentary eye. b. Rostrum. 



Fig. 3. — Pupa of the same insect. 



Fig. 4. — Imago, with the wings expanded. 



Fig. 5. — A smaller variety, showing the manner in 

 which the wings of Thelaxes are folded horizontally 

 and differently from most Aphides. 



Fig. (>. — Small apterous male. 



Fig. 7. — Oviparous female of relative size to the last 

 insect, with two ova. 



