Fig. 26 a. Egg-punctures of Ormenis pruinosa, twice enlarged; 

 b. Froth masses of Ormenis septentrionalis, natural size; c. Adults of 

 O. septentrionalis, natural size; d. Adult of 0. pruinosa, four times 

 enlarged; e. Adult of O. septentrionalis, four times enlarged. (After 

 Walden, Conn. Bui. 234). 



113 



