42 
not found them associated with diseased Hyp. radicata, though 
the plants are often common in the same spot. The galls on the 
two are, however, so much alike that one may fairly enough 
suppose them to be the work of the same species. 
HIERACIUM VULGATUM Fries :— 
On this plant I have found, near Aberdeen and near Dumfries, — 
galls so similar in every respect to the galls of Phytoptus on 
ff. Pilosella, (and like these galls the work of Phytoptus), that I can 
hardly doubt that they are the work of the same species of mite. 
They differ from the galls described above only in their rather larger 
size, and in absence of hairs and consequent greener colour. 
CAMPANULA ROTUNDIFOLIA L. :— 
a. Galls of Cecidomyia Campanule Muell., consisting of a — 
swollen fleshy bud or group of buds, that never develop fully 
(‘Se Wal,” Io Ba). 
6. Galls of Gymnetron Campanula, consisting of swollen ovaries 
(* Sc. Wat.” Zc.) Both these galls are common in the district 
near Aberdeen in July and August. 
¢. Galls of a mite (Phytoptus), consisting of a very inconspicuous 
inrolling upwards of the margin of the leaf, usually from base to 
tip on each side, so as to form a roll or tube about : mm. in 
diam., and slightly fleshy, but not differing otherwise in appear- 
ance from other parts of the leaf. Inside the tube the mites may 
be found. In July I found these galls in the neighbourhood of 
‘Aberdeen, and in September in Rannoch in Perthshire. Mr. 
Hardy, the well-known naturalist of Berwick, recorded the results 
of his own observations on the work of mites in Berwickshire in 
the Zoologist a number of years ago, including among them this 
gall. It has also been recorded from Switzerland and from 
Germany by Dr. Thomas (in Schweizer Milbengallen, 1872). 
VACCINIUM VITIS-IDAEA L. :— 
I formerly described briefly (Sc. 2Vaz., i., 158) galls on this plant 
found by me in Braemar; but could offer no conjecture as to the 
maker, as the galls had been lost. In the autumn of 1882 I again 
have found these galls in Braemar; and have found in each a 
few yellow larvae of a Cecidomyia between the involute imbricate 
red fleshy leaves of the terminal buds. 
Mr. Cameron describes (2.12.14, xii., 190) a Saw-fly, Mematus 
crassipes var. Vacciniellus Cam. reared by himself from galls on 
V. Vitis-[daea, but does not describe the gall, which I have not 
myself met with. 
ee 
