!'..('. ExTo.Moi.DCicAi. S(iciI':tv. 



first iHiiuIt takes |iliU-<> aliout a iiidiitli aftcf the ycuni;; leave their uiiither. ami is 

 foUciweil liy the seeretioii (if a hcjHKjfieiieeus layer of wax. The insects are yellnwish 

 for a |iei-i(iil. tbe females .shuwini; deep-red iiiarkiu); about the time the delieate twn- 

 wiiiu'ed males make their appearance. They later change to a lirownish culnnr and 

 migrate tcj the sides of the twit's hefori' the fall of the leaf. 



