GLASGOW SOCIETY OF FIELD NATUKALISTS. 51 



white colour, with reddish cheeks, and are situated on the trunks 

 of oaks at a distance of three or four feet from the ground, or on 

 very young shoots. I possess one shoot, three inches long, with 

 eight galls on it. They are not uncommon at Cadder and Kenmuir 

 during May and June, and I noticed that they were very abundant 

 in Glen Lyon, Perthshii-e. The flies emerge in June. 



Aulax sabaudi, Hart. — A local, but not uncommon, species. 

 The galls are found on the stems of Hieracium horeale. 



A. glechomce, Hart. — The galls occur on the leaves of Nepeta 

 glechoma, and have been found in Perthshire. (Traill, Scot. Nat., 

 ii., 253.) 



A. rhoeadis, KL, Hart. — The larvae live in inflated capsules on 

 Papaver rhoeas and duhium. (Hardy, Transactions Berwickshire 

 Naturalists' Club, 1871, p. 263.) From the distribution of the 

 food plants the species is not likely to be met with in the "West. 

 Hartig describes another sj)ecies [Aulax minor) that should occur 

 in Scotland!; it also affects P. rhveas. 



24th February, 1874. 



Mr. James Allan, Vice-President, in the chair. 



This meeting was entirely occupied examining microscopic objects 

 exhibited by Mr. G, Barlas, Mr. W. D, Benson, and Mr. J. Harvie ; 

 also some micro-photographs exhibited by Mr. Barlas. 



6th March, 1874. 

 Mr. James Allan, Vice-President, in the chair. 



SPECIMENS EXHIBITED. 



By the Chairman. — A number of shells collected from gum 

 imported from Barbary. Mr. Binnie distinguished Helix lactea, 

 and two other species of that genus. 



Mr. Cameron mentioned that on the 26th February he had, in 

 the Possil Road, discovered a nest of Formica nigra, in which not 

 only were the workers in a state of activity, but also a colony of 

 Aphis radicis; and the ants, on the nest being disturbed, had taken 

 the plant-lice carefully in their jaws, and carried them down into 

 the inner recesses of their habitation. 



