76 BRITISH OAK GALLS. 
The typical condition of the gall is unilocular and unilarval. 
The larva pupates in the gall. The imago seldom emerges 
until the spring of the second year. 
Parasite, No. 56. Inquilines, Nos. 128, 133, 138, 144. 
Alternate sexual generation: Andricus ramuli, Linn. 
This is an obscure gall and not easy to find; more 
than half of it, even when full grown, is covered with 
bud-scales. The gall collector needs to be very 
persevering when searching for it. 
It is generally found in terminal leaf-buds, and 
covered with a greenish succulent rind which ultimately 
changes to a brownish colour and dries to a thin 
layer, which remains on some specimens, but falls off 
others and leaves indistinct longitudinal furrows on 
the surface of the gall. The shape is that of a prolate 
spheroid, the lower pole of which is unattached, 
although imbedded in the xylem of the twig, the 
upper pole produced into a mastoid form. It matures 
rapidly and very soon afterwards usually falls to the 
ground. 
This gall bears a close resemblance to those of 
Andricus collaris and A. globuli. There are, however, 
a few distinguishing features. In comparing it with 
the former species Cameron says “it 1s shorter and 
more spherical than the gall of collaris . . . the 
conical point is more distinct, and there is no 
coloured band.” Mayr, referring to the same subject, 
adds that there is much similarity between the’ galls 
of Aphilothria autumnalis and Andricus globuli; both 
are more than half covered with bud-scales, when 
fresh of a green colour, thin fleshy reticulation beneath 
the scarf-skin, and a small round wart at the summit; 
but “it differs from the gall of A. globuli in its more 
oval form, in the surface of the inner gall having no 
reticular rings, but blunt longitudinal striations, which 
also show on the surface of the brown gall.” 
