84 BULLETIN NO. 4, DIVISION OF ENTOMOLOGY. 
THE APPLE TREE PLANT-LOUSE. 
Could you make it convenient to tell me the name of the inclosed 
Aphides? This is fruit year for the apples of Monmouth County, New 
Jersey, and the trees are almost black on the flower buds with these 
lice. The farmers are filled with apprehensions. Last night was a 
black frost, and it bids fair to be so to-night. But I find that, though 
numb on the trees to-day, they became quite lively when brought into 
the house. Whatdoyou think aboutthem? Isitusual soearly? Any 
information will be gratefully received. 
P.S.—Just after making up the package my son brought me some buds 
of Bartlett pears similarly attacked. I opened the package and put them 
in. They are inclosed in tinfoil, thus separating them from the others.— 
[SAMUEL LockwooD, Freehold, N. J., April 25, 1883. 
[The louse was the common Aphis mali, and it is not at all unusual to 
find them in such numbers thus early in the season. As a remedy we 
advised trying a very dilute kerosene emulsion, as described in our last 
Report for 1881-2, pages 112-116. | 
OAK BARK-LICE. 
With this note I send you portions of an oak twig (Quercus aquatica) 
which are incrusted with scales or galls, or whatever you may term 
them. The branch looks barnacled. 
I do not remember ever having seen them before. The oak from 
which they éame is growing on the roadside, and is about 15 feet high. 
The twig or young branch seems to have been twisted by some driver 
who wanted a switch, but who did not succeed in wringing it off. It 
is (as you will see from the young leaves) still growing, and upon 
this twig only were found the insect scales. . Nowhere else on the tree 
are they to be seen—only on this hanging and twisted branch.—[J. H. 
MBELLICHAMP, Bluffton, S. C., April 23, 1883. 
[The bark-lice belonged to an undescribed species of the true genus 
Lecanium. The fact that they were found on the broken twig is of great 
interest, as bearing on the preference which all bark-lice seem to have 
for enfeebled trees and portions of trees. | 
CATTLE Tick ON HUMAN Bopy. 
This tick was removed by a friend of mine—a physician—from the 
border of the arm-pit of a young lady. The tick had penetrated so 
leeply that it was removed with some difficulty without breaking it in 
