64 BRITISH OAK GALLS. 
the mature state it is an attractive and interesting 
object. 
The exterior of the gall bears several ridges of 
irregular outline which may, or may not, encircle the 
growth. From these ridges, at different points, buds 
develop in the autumn and remain until the following 
spring, when most, if not all, become abortive and fall 
off; if one remains a long slender twig may sprout 
from it. I have seen several specimens in which the 
termination of the twig bore a gall of the same 
Species. 
After the imago has emerged the outer gall continues 
growing until the autumn—an unusual feature in 
spring galls. 
In the centre of the structure is a deep cylindrical 
hole. It is about 3 mm. in diameter and 10-12 mm. 
deep. At the bottom is the elongate-oval larval and 
pupating chamber. An exceedingly thin septum, 
slightly pilose on the interior, closes the mouth of the 
hole. 
“ Curvator, it may be noted, forms terminal swellings 
like those of inflator ; but these are seldom so elongated, 
and the internal cavity is larger and more particularly 
wider” (‘ Brit. Phyto. Hymen.,’ vol. iv, p. 82). 
Andricus lucidus, Mayr. 
(Plate V, div. F.) 
Cynips lucida, Hartig; Aphilothrie lucida, Mayr, Hartig; 
Andricus lucidus, Cameron; A. lucida, Mosley. 
English name of gall.—‘‘ The Bristly Gall.” 
Position of gall.—In the axils of the leaves. 
Manner of growth.—Sessile, hirsute, single, clustered, in- 
deciduous. 
Colours.—Pale brown, ultimately brown. 
Average dimensions of a mature specimen.—Globular 
form; girth, 30 mm. 
May be sought during any month of the year. 
Growth is complete by the end of September. 
The typical condition of the gall is plurilocular, but unilarval. 
Osual number of cells, about fifteen. 
