114 BRITISH OAK GALLS. 
Parasites, Nos. 12, 25, 28, 44, 119, 125, 151, 180. Inquilines, 
Nos. 128, 134. , 
Alternate sexual generation: Spathegaster similis, Adler. 
A very attractive and pretty gall, retaining its 
singular outline and much of its delicate coloration, 
as a dry specimen in the cabinet. 
When inhabited by inquilines the structure seldom 
attains the normal dimensions. If gathered before 
maturity it shrivels, and the papille, whether solitary 
or in ridges, stand out prominently. 
No doubt need be entertained as to the identity of 
this gall. It is unlike any other form, from its earliest 
growth, to maturity. The most noticeable feature 
Fie. 13.—Sectional aspects of gall caused by Dryophanta longiventris. 
A. Cross section. 3B. Longitudinal section. c. Transverse section. 
All x 2. Dele. ad nat. E.C. 
is the number of pale-coloured papille scattered all 
over its surface, which frequently coalesce and form 
ridges extending from side to side, and also in concen- 
tric and circular outlines. The depressed portions of 
the gall are pink and red; colours which are 
accentuated by the pale yellow of the papille, and 
which do not entirely disappear even when the gall is - 
past maturity. 
The shape is globulose, but flattened at the base ; 
the basal portion being transversely indented by the 
rib of the leaf. It is firmly attached to the rib by 
a small projection of its own growth. Development is 
arrested when tenanted by parasites or inquilines and 
the size remains small, but under normal conditions 
it may be 8 mm. high, and 10 mm. in diameter. 
If a number of the galls be gathered late in Sep- 
