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. 



