430 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE L 



Fig. 1. — The Honey Locust Scale {Chionaspis gleditsiae). Male and female 

 scales intermingled. The small, white scales are the males, while the larger 

 and less distinct ones are the females. Enlarged. 



Fig. 2. — The Rose Scale (Aulacaspis rosae). The lower twig bears the 

 male scales and the upper one the larger female scales. Enlarged. 



Fig. 3. — The Maple Terrapin Scale (Lecanium nigrofasciatum). The scale 

 on the larger twig is almost natural size. 



I 



