672 



STATE BOARD OF AGRICULTURE. 



Spiracular setae in groups of three with the middle one longer, and all 

 with rounded apices. Anal-ring with eight spines. Marginal spines 

 rather feebly developed in mature specimens. 



We are unable to diilerentiate Lee. armcniaemn, L. fleteheri or Lee. 

 ohtusum from L. eorni. 



Figure 8. 

 Lecanhim corni on tulip-tree. — Antenna ; spiracular petae ; and A'entral view 

 of aual-pliites ; sn, sub-apical setae; D. S., dorsal surface of tip of anal- 

 plate showing apical setae. 



This species has been studied on material collected at East Lansing on 

 Maple, Plum, Japanese-plum, Bitter-sweet, Grape, Soft-maple, Tulip, Elm, 

 Hickory, Euonymus atroimrpurciis (Burning bush), Wild-cherry, Pea- 

 tree, Blue-beech, Cucumber, AVillow (i^alix nigra), Buckeye, White-oak, 

 Magnolia acuminata, Prickly-ash, Sycamore, Beech (Fagus), Crataegus, 

 Sassafras, Black-berried-elder, Ironwood, Basswood, Honey-locust, Ked- 

 elm. White-ash, Butternut, Black-ash, Blackberry, Celtis occidentalis or 

 Hackberry, cultivated Currant, and Quince. 



And from other parts of Michigan in addition on Black-walnut, Black- 

 locust, Peach, Ked-ash, Black-oak, Hickory, Green-ash, European Linden, 

 Rose, Juniper and AVhite cedar. 



i.ECANiuM (Entecanium) niguofasciatum Pergande. 



Female reddish-brown, oval or pear-shaped. Elevated nearly half its 

 breadth. From 1/8 to nearly 3/l(> inch long. The top of the female is 

 lio-hter in color than the sides. There are about twelve radiating lines 



