NOTES ON OAK-GALLS AT KEW. 31 
following year rather crowded with this smaller gall; nor could I 
find a single large one. They are 2-3 lin. diam., thick-walled, 
flattened at base, with bands of a paler colour, often raised into 
small papille; if in the sun they acquire a rosy tinge, but in the 
shade are green, with nearly white papille. The gall mentioned 
as D. scutellaris on Q. Turneri, Willd. (which, by the way, still 
retains its beautiful rose-colour, as when gathered), belongs to 
this species. 
Aphilothrix globuli, Hart.—The “two specimens” of “A. 
autumnalis, Hart.,” of my former paper (l.c¢., p. 54), belong to 
this species, and should be corrected. 
A. albopunctata, Schl.—Fairly common, both in 1881 and 
1882. 
It will be noticed that varieties of Q. Robur are not mentioned 
in this paper, but I have come to the conclusion that for entomo- 
logical purposes this is unnecessary; galls that occur upon one 
will also be found upon another, when planted together. Hven 
the rich colours found in vars. purpurea and concordia do not 
afford any protection from the insects. 
Until last autumn I had not noticed any difference in the 
colour of the galls found upon the leaves of the purple oak; 
then, however, a tree of the var. Granbyana, Hort., was observed 
to have quantities of N. lenticularis galls, all of a uniform blackish 
purple, darker than the leaves, which are not nearly so dark as 
the var. purpurea,—a curious concentration of the colouring 
pigment in the gall tissue. 
There are two points in my former paper worthy of a 
passing note, viz.—Ist, The curiously attenuated galls of 
Cynips Kollari on Quercus Turneri; and 2ndly, The acorn- 
galls of Andricus glandiwm on Quercus Cerris, and its variety 
Lucombeana. 
Respecting the former no doubt can now exist that Cynips 
Kollari is the maker, for that insect has been bred by me from a 
number of galls kept separate for the purpose; also some of the 
usual inquilines. I have met with approaches to the same form 
on @. Robur. 
Of the galls of Andricus glandiwm, gathered in 1879, a large 
number were preserved; these still contain healthy larve, appa- 
rently as much so as some gathered this autumn. I am awaiting 
the result with much curiosity; surely they will die before long, 
