112 BRITISH OAK GALLS. 
The remark anent a sexual form of D. agama (p. 
110), applies to this species also. 
Occasionally examples will be found developing on 
the upper surface of a leaf. 
Dryophanta divisa, Adler. 
(Plate XLII.) 
Dryophanta divisa, Mayr, Fitch, Miller; Cynips divisa, Hartig ; 
Spathegaster verrucosus, Schltdl., Adler, Licht., Mayr. 
English name of gall.—‘‘ The Red Pea Gall.” 
Position of gall.—On the under-surface of the mid-rib ‘and its 
offshoots. 
Manner of growth.—Single, glabrous, glossy, globulose, 
oblate. 
Colours.—Pale yellow, orange yellow, pink, red, light brown. 
Average dimensions of a mature specimen. — Height, 
5mm.; length, 6mm.; breadth, 5 mm. 
May be sought during the months of June to October. 
Growth is complete by the end of September. 
The typical condition of the gall is unilocular and unilarval: 
The larva pupates in the gall. The imago emerges during 
October and November. 
Parasites, Nos. 19, 39, 44, 47, 49, 88, 95, 105, 119, 125, 151, 177, 
180. Inquilines, Nos. 127, 134, 142. 
Alternate sexual generation:  Spathegaster verrucosus, 
Schltdl. 
With the aid of a lens it can be seen that the 
surface of these galls is frequently dotted with minute 
papille, and occasionally there will be a well-defined 
flat papilla a little darker than the | surrounding 
colour, opposite the basal attachment. 
The pink or red colour may be entirely absent, but 
even when present its vividness fades with age, and it 
is sometimes completely changed to a pale brown. 
This gall is similar in appearance to that of D. 
agama, but several features distinguish it from that 
species ; e.g. (a) very glossy surface, (b) pink colour, 
(ce) normally more numerous upon a leaf, and (d) more 
widely distributed ; but the infallible characters are 
(1) the thick walls, (2) small larval chamber, and (3) 
