125 
size as is observed in other species of bark-lice, but appears much the 
same as when just commencing her labors. When the ovisac is emp¬ 
tied, she withdraws her beak from the limb and dies; the dead body 
remaining attached to the limb by means of the cottony secretion. 
The antennae and six legs are retained, although in a rudimentary 
condition; no trace of the eyes can be found. When the female is re¬ 
moved from the limb in the spring, before the waxy mass has com¬ 
menced appearing, the insect will move slowly, showing that although 
the legs have ceased to grow with the body, yet they are not entirely 
useless. 
The first young lice were observed June 15, and are light sordid 
yellow, translucent, elongated oval, tapering slightly toward the pos¬ 
terior end, seven abdominal segments, division lines darker, plainest 
in middle, short hairs project from around the margin at regular in¬ 
tervals. Antennae situated in front of the eyes, and from mounted 
specimens I make twelve joints. Eyes compound, prominent, dark, 
convex, and situated at extreme sides of the body. The beak is long, 
thread-like, and arises from a projection at the extreme end of head, 
and between first pair of legs. 
At the end of abdomen projects two anal appendages longer than 
the entire body, which disappears in a short time. The six legs are 
equi-distant from each other. Length .014 inch. 
In the natural condition, the young insects settle down upon the 
leaves of the maple almost immediately after hatching, the preference 
given the under side and near the mid-rib—although found upon the 
upper side to some extent—probably because the epidermis is more 
tender on the underside and they are there protected from the sun’s 
rays. 
When in a state of rest the young lice draw the antennae under and 
parallel with the last joint of the fore-pair of legs, the two remain¬ 
ing pair extending backward. 
During the summer the young insects increase in size and continu¬ 
ally grow darker. I have not observed them in the act of moulting, 
and conclude if they would at all, it is by shreds of the skin peeling 
off, and not cast off entire, as in the usual way. Although they sel¬ 
dom leave the first assumed position, during the summer, they have 
full use of their legs since when the leaf is detached from the tree, 
the young lice will withdraw their beaks and move quite actively 
about in search of fresh food. 
When young, the males and females cannot be distinguished one 
from the other, but in a few weeks the males cease growing and 
change to the pupse state. This scale is much lighter than the grow¬ 
ing females and was at first mistaken by myself for dead lice, as the 
transformation progressed, two anal stylets were seen projecting from 
one end, and when about to emerge the membrane at the head is 
slightly raised, and the true male Lecanium comes forth, leaving behind 
on the leaf the whitish larval scale. These are found scattered about 
among the females on both upper and under sides of the leaf. 
The male louse is very different from the female. During the pupa 
state he acquired wings for the new sphere into which he is about to 
enter, and although he still retains the legs and antennse, the beak is 
left behind, since he will have no use for food the short time left him 
