PLATE X. 
Fig. I. Lecanium cockerelli, nov. sp. Dorsal view of female on 
Ulmus americana. Enlarged 12 times. 
Fig. 2. Lecanium cockerelli, nov. sp. Antenna and leg of female 
on Ulmus americana. Enlarged about 125 times. 
Fig. 3. Lecanium cockerelli, nov. sp. Antenna and leg of female 
on Juglans ni^ra. Enlarged about 125 times. 
Fig. 4. Lecanium armeniacum Craw. a. Antenna of female beating 
six joints; b, antenna of female bearing seven joints; c, leg of 
female. 
Attention is called to tlie fact that bristle extending from the 
distal end of joint 3, in the seven-jointed variety, was not found in 
any of the 13 specimens examined of the six-jointed variety, 
extending as would be expected from the middle of the long 3d 
segment. The long 3d segment always bore hairs at distal end 
and nowhere else. 
