108 ANDEIOUS iESTIVALIS. 



that he has bred from ostreus galls a sexual form 

 which lives in small bud-galls ; he does not describe 

 either the insect or gall, and names it Neuroterus 

 furunculus. 



The following unknown galls may be here described. 



Miss Ormerod (Ent., xii, p. 193) describes and 

 figures the under-noted galls, which are probably 

 formed by an Andricus. 



"The bud-gall (PL XVII, fig. 8, after Ormerod) 

 which is figured both natural size and magnified, much 

 resembles a stunted form of A. collaris, but is much 

 smaller, and remains to maturity buried in the bud- 

 cells. I have found it rather numerously in winter 

 and spring, but as it does not make the slightest show 

 externally, and the buds in which it is contained are 

 not distinguishable from the others, I have only come 

 on it accidentally during search for possible winter 

 developments of details of gall-growth, and the gall- 

 maker has been too much crushed to rear for defini- 

 tion. It is somewhat oval in shape, single-chambered, 

 with a thin crisp wall, and from the varying conditions 

 in which I have found it, appears to form (accom- 

 panying the growth of its larval tenant) during the 

 latter part of the winter and beginning of spring, the 

 imago quitting it before the season of expansion of 

 the healthy buds. I conjecture that this very minute 

 gall is much sought after by birds, as in the seasons 

 when I have found most of it I have noticed the buds 

 frequently torn open, and there is no other bud-gall 

 common in the district at that time so far as I am 

 aware. 



" The other gall (PL XVII, fig. 9, after Ormerod) 

 figured is very unusual in appearance, and has caused 

 such complete distortion of all the surrounding 

 growths as to make it difficult to convey with the 

 pencil any characteristic forms. As seen magnified, 

 it much resembles an abnormal form of Andricus 

 inflator. It, however, consists of two oval cells. 

 These are rather thin-walled, placed side by side, and 



