1 6 The Scottish Naturalist. 



first two segments dark brown and horny. 'J 'he galls are 

 most readily detected by squeezing the flower-heads 

 between one's finger and thumb, as the flower-heads 

 show no sight of their presence externally. The makers 

 were easily reared in confinement, and proved to be 

 Trypeta solstitialls L, Dr. Buchanan White sent me 

 galls fi-om Dunkeld, and I afi:erwards found them at 

 Banchory. 



Hypochceris radicata L. — I have met with aalls similar 

 in origin and situation to those just described, but they 

 are smallar (^ inch), and externally are marked with 

 longitudinal muricated ridges, and the walls are thin. 

 Each is tenanted by a larva ,of a species of Trypeta. 

 They seem to be very scarce near Aberdeen, where 

 I found them in the end of July. Dr. Vice has given me 

 pithy swellings of the peduncles on this plant from North 

 Wales ; they may be looked for in Scotland also. The 

 maker belongs to the Cynipidse. 



HiERACiUM SYLVATicuM L. — Near Aberdeen, on the Links, I 

 have found on this plant galls of Atdax hieracii Bouch^ 

 ( — H. sahaudi Hart.) They are swellings on the stem 

 quite like those on H. bo7'eale Fries {Sc. Nat. I., 157.) 



HiERACiUM BOREALE Fries. — (a)~ Galls oi A. hieracii Bouche. 

 (b) On the receptacle I have once or twice found at 

 Banchory galls like those described from Hypochceris 

 radicata in size (^ x i^ — y^ inch), in form, and in bearing 

 longitudinal' ridges, but the walls are thicker. Each 

 is tenanted by a larva of Trypeta. 



Plantago lanceolata L. — The galls described in 8c. Nat. II. 

 252, are made by Mecinus pyraster Herbst. 



QuERCUS ROBUR L. — (f) Sc. Nat. I. 234. Mr. Taylor this 

 spring found galls of Cynips ligfiicola Hart. ( = C Kollari 

 Gir.^ at Kingcausie, on Deeside, a few miles from 

 Aberdeen. I am not aware that they have been recorded 

 so far north in vScotland before. (i) Sc. Nat. II. 127. 

 Dr. Buchanan White has sent me galls oi Aphi/othrix 

 radicis Fab. from near Perth. f^i 'S^- Nat. II. 171./^/ 

 On some oak-catkins, also sent me from Perth by Dr. 

 Buchanan White, there occurred numerous galls of 

 Andricits ainenti Gir. (v) On the same catkins witli 

 the last mentioned galls, occurred others, usually solitarily 

 or in pairs, also evidently developed from the stamens. 



