230 



The Scottish Naturalist. 



far as these have not been included yet in any papers of 

 the series on " Scottish Galls," a reference to them may 

 be permitted here ; and for additional information on 

 the Willow-Gall-making Hymenoptera, reference should 

 be made to Vol. II. of the Monograph by Mr. Cameron 

 in the Ray Society's publications (1885). 

 S. triandra L. Male catkins galled by Cecidomyia hetcrobia H. 



Loew (C. saligna Hardy, Tram. Bot. Soc, Edin., IV. 

 78), and rosette-like galls on tips of twigs are the work 

 of the same midge, which owes its name (heteros mean- 

 ing varied, and bios meaning life) to this diversity of its 

 galls. The affected catkins become swollen, hairy, and 

 deformed. Galls of both forms were sent me from near 

 Perth by Dr. White. 

 Nematus Salicis-cinereoe (Retz.) Thorns., has been already re- 

 corded in these notes as a gall-maker from various 

 willows in Scotland ; and Dr. White has sent me the 

 galls from Perth on S. puberula Doll (?iigricans x 

 cinerea). S. purpurea var. Lambertiana, and S. 

 rubra var. viminaloides in addition to previous 

 records. 



Nematus gallicola Westw. and Steph., in addition to several 

 host plants previously mentioned galls have been sent me 

 from Perth by Dr. White, on Salix decipiens, S. 

 alba var. caerulea, S. triandra var. concolor, 

 S. ferruginea, and S. cinerea x phyiicifolia. 



In conclusion I may note a few new localities for galls already de- 

 scribed by me in " Scottish Galls." Most of these 

 localities are in Fifeshire, either around St. Andrews in 

 the Province of " Tay," or near Elie and elsewhere in 

 "Forth," and rest on my own observations. 



Stellaria graminea L. (Scot. Nat. 1884, p. 208). The 

 pseudogalls of mites (Phytoptus), consisting of contorted 

 leaves, are of rather common occurrence in the valley 

 of the Dee, and in Fifeshire both in the Tay and in the 

 Forth basins. 



Geranium sanguineum L. {Scot Nat. II., 32). The clus- 

 tered galls of Phytoptus Geranii are very plentiful on 

 Kincraig Point near Elie, on the Firth of Forth. 



