266 : THE ENTOMOLOGIST. 
parenchyma, closely adherent to the wall of the contained 
larva-cell, which is situated near the basal attachment of the 
gall; the wall of the larva-cell is of a yellowish white colour. 
The gall attains its maturity late in the autumn, but is not 
deciduous. When kept in-doors during the winter the perfect 
insect emerges in April, but in the open air it does not make 
its appearance until May or June.—G. L. Mayr. 
Fig. 20. 
CynIPs CONGLOMERATA (and in section). 
20. Cynips conglomerata.—This gall generally occurs in 
clusters on dwarf bushy plants of Quercus sessiliflora and 
Q. pedunculata, and less commonly on similar plants of 
Q. pubescens. Each gall is about the size of a large pea, 
and, especially when solitary, is spherical in form, but when 
a number are clustered together, and appressed to one 
another, the sides of each separate gall become flattened 
where they meet, and the galls often become somewhat 
confluent at the base: in such instances they frequently 
