246 THE ENTOMOLOGIST. 



bud-scales on raised fleshy bases, which are developed into 

 leaves towards the apex of the gall ; a bunch of crippled, 

 densely-crowded leaves grows out of and conopletely fills the 

 mouth of the cup. The vertical section generally shows 

 distinctly that the axillar part of the bud has not been 

 developed in a longitudinal direction, but has been trans- 

 formed into a cup, from the interior of which emanate the 

 undeveloped leaves ; and we further see that inner galls are 

 sometimes formed from such leaves, and sometimes are 

 developed from the axis, which proves tiiat, strictly speaking, 

 the gall of this species neither belongs to the true leaf- nor to 

 the true bud-galls. The wall of the gall is at first sappy, but 

 gradually hardens and becomes dry. It is difl^cuU in some 

 cases to distinguish this gall from that of A. multiplicatus. 

 The flies emerge during the first fortnight of June. — G, L. 

 Mayr. 



Dr. Giraud, who found this gall on Quercus cerris at the 

 end of May, but rarely, thus distinguishes it. Near A. multi- 

 plicatus, but " elle est toujours plus precoce, sa forme est 

 niieux determinee et elle n'est pas couvert des nombreux 

 plis de la feuille qui distingueut cette derniere." One 

 inquiline and one parasite are recorded from it by Dr. Mayr 

 in Synergus thaumacera, Dahn., and Megastigmus dorsalis, 

 Fahr., both of which occur in the summer. Another Turkey- 

 oak species not occurring in Britain. — E. A. Filch. 



60. Andricus nilidun, Gir. — Of this species I have but one 

 specimen, collected by Von Haimhoffen, 

 Fig. CO. which I have had figured for want of a 



better, though it differs somewhat from the 

 usual shape. According to Giraud the gall 

 adheres to a side vein on the under side of 

 the leaves of Quercus cerris, has a very 

 short and slender pedicle, is spherical (the 

 specimen figured is oviform), with a dia- 

 meter of from four to six millimetres, is 

 light green, and clothed with verv short but 



moderately thick, of a spongy substance, 

 and surrounds the larva-cell. It appears in October, and 

 falls in about three weeks, but preserves its freshness for 

 some time when on the ground : it gradually becomes gray, 



