2o6 The Scottish Naturalist. 



dilatation or head. Among these filaments Hve mites of the 

 usual form (.0056 x .0011). Common beside the Dee at 

 Banchory-Ternan ; at Perth, »S^c. 



All the above galls are the work of mites of the genus Phy- 

 toptus, to which all the true gall-mites yet known belong. In 

 Greville's ' Monograph of the Genus Erineum ' (' Edinburgh 

 Philosophical Journal/ vol. vi. p. 67 ^/ seq.) we find several of 

 the supposed fungi recorded for Scotland, chiefly from Roslin 

 and the neighbourhood of Edinburgh. These are as follows : — 



1. Erineum subulatii?n, Grev. {- E. Jugia/idinujn, Pers.) On 

 leaves of walnut (^Juglans regia) ; Braid Hermitage, near Edin- 

 burgh. 



2. E. acerimun, D.C. (Hook., Fl. Scot. H., 34) ( = E. pseiido- 

 platani, Kunze). On leaves oi Acer pseudoplata7ius ; near Roslin, 

 and at Braid Hermitage. 



3. E. tortuosum, Grev. On leaves of birch {Betula alba) ; 

 Ravelrigg Toll and Bilston Burn, both near Edinburgh. 



4. E. betulce, D.C. ( = E. tvseu^n, Schultz), j . ' 

 K. E. betidinum, Schum. ) .^^'\. 



^ I IV. 17 (6') 



' 6. E. alneum, Pers., on leaves of alder; vide supra. 



7. E. oxyacanthcE, Pers., on leaves of hawthorn {Crataegus 

 oxyacautha), at Roslin, &c. 



Of these I have not met with Nos. i, 2, 3, and 7. 



In the 'Zoologist,' 1853, pp. 3875-76 (Proceed, of the Berwick- 

 shire Naturalists' Club, x. 3), Mr Hardy has noted the occurrence 

 of the following galls, the work of species of Ehytoptus, in Ber- 

 wickshire : I use the names that have been given to the galls 

 themselves for convenience of reference : — 



1. Ceratoneon attenuation^ Bremi, on leaves of Frunus Padus 

 (Scot. Nat., i. 124). 



2. Similar galls along the midrib of the leaf of P. spinosa (re- 

 ferred by Dr Thomas to Cephaloneon molle^ Bremi). 



3. Galls on upper surface of leaf of Alnus glutinosa, in axils of 

 chief veins ({b) Scot. Nat., i. 194). 



4. Erineum alneum, on leaves of Alnus glutinosa. 



5. Galls on leaves of Betula alba^ like No. 3. (? Bursifex 

 betula;, Amer.) 



6. Bursifex sal ids, Amer., on leaves of Salix aurita {vide Scot. 

 Nat., ii. 301-2, sub (e) S. caprcce and sub S. aurita). 



