28 THE ENTOMOLOGIST. 
large. From this form a Synophus is developed, which 
perhaps is generally smaller, but differs in no way from 
specimens bred from the normal form: as an important fact, 
] must mention that I have bred from these galls some 
specimens which do not in the least differ even in size. The 
normal flight-time of the gall-fly is March and April; I have, 
however, extracted living specimens from a gall I cut open 
the following autumn. With those galls which have been 
collected some time before the flight-time of the fly, it is 
certainly advisable to soak them for some hours in water, as 
the gall-fly is often unable to bite through the wood-layer, 
which gets very hard and dry from being kept in a room. On 
the 9th April of this year I found a leaf of the Turkey oak, of 
which only one half was developed: to the midrib adhered a 
mature gall of Synophus politus, from which a fortnight later 
a fly emerged.—G. L. Mayr. 
Dr. Mayr records Synergus variabilis, Syntomaspis Cerri, 
Callimome regius, Megastigmus Synophri, and M. dorsalis, as 
having been bred from the galls of this species. Will they follow 
the introduction of Quercus Cerris into Britain? —E£. A. Fitch. 
he ara 
A (] 
finn « Wises 
SNe, 23 
DR ne 
9) sy: Did S 
EQVSQVWDV ao 
= Gay Way ee 
Fig. 87.—ANDRICUS TERMINALIS. 
a. Gall of Andricus terminalis. 
b. Section of the same, showing the numerous larva-cells. 
87. Andricus terminalis, Fabr.—This well-known, quick- 
growing fungus-gall is developed from the terminal, rarely | 
from the axillar, buds of Quercus sessiliflora, Q. pedunculata, 
and Q. pubescens. It is generally spherical, a little broader 
