PLATE XVII 



Fig. I. Lccaniodiaspis celtidis Ckll , sub. sp. pruiiwsus sub. sp. 

 nov. Dorsal view of female on Ulmiis americaria. 



Fig. 2. Lecanipdiaspis celtidis Ckll. sub. sp. pruiiiosiis sub. sp. 

 nov. Antenna of female. Enlarged about 125 times. 



Fig. 3. Lecaniodiaspis celtidis Ckll. Antenna of female. Enlarged 

 about 125 times. 



Fig. 4. Lecaniodiaspis (?) parroiti, nov. sp. Dorsal view of 

 female on Aesculus glabra. Enlarged 12 times. 



Fig, 5. Lecaniodiaspis (?) parrotti, nov. sp. lateral view of 

 female. On Aesculus glabra. Enlarged 12 times. 



