

Fig. 45. Buttercup heads enlarged showing the blasting due to attacks 

 of the Froghopper Philacnus spumarius. Fig. 46. Female reproductive 

 organs of Philaenus spumarius showing ovary with undeveloped, par- 

 tially developed and mature eggs, the latter appearing very black, with 

 shell. Below these and connected with the oviduct is the circular sper- 

 matheca and at bottom the ovipositor. (Original photographs.) 



