4S6 Prof. J. W. H. Trail on the Galls of Norivay. [sess. liii. 



Eecorded by myself {loc. cit., p. 210) from Christiania and 

 Odde. 



*S. hcrhacca, L. — *(1) Leaf -galls of Nematus Jier-hacece, Cam., 

 in the form of irregularly rounded deep red or dark green 

 pea-sized outgrowths. On a hill at Hammerfest. Common 

 on Scotch mountains. 



*(2) Densely-haired clubbed tips of twigs, tenanted by 

 Fhijtojjtus. Along with the last gall. 



*Bctida 2^uhesccns, Ehrh., bore Erincum tortuosum., Grev., 

 the work of Phytopius, in the form of clusters of yellowish- 

 white felted hairs on both surfaces of the leaves. Near 

 Lyngseidet, and near Tromso. 



B. verrucosa, Ehrh. — (1) Galls of Phytoptus, known as 

 Erincum hetulinum, Schum, on leaves. Near Ealejde. Ee- 

 corded by myself {loc. cit., p. 213) from Eide, Trondhjem, 

 and Christiania. 



(2) Galls of Pliyto'ptu& in form of small warts in the 

 leaves. Near Ealejde. Eecorded by myself with the last. 



Alnus glutinosa, L. — Galls of Phytoptus (Cephaloneon 

 pustulaticm, Bremi). On a hill near Falejde. 



A. incana, DC. — (1) Galls of Phytoptus {CciJhaloncon pustu- 

 latum, Bremi) on leaves. Near Falejde and Merok. Eecorded 

 by myself {loc. cit., p. 214) from near Eide and Christiania. 



(2) Erincum alnigcnum. Link, on leaves. Near Falejde, 

 Merok, Trondhjem, and Lyngseidet. Eecorded by me 

 {loc. cit., p. 213) from Eide and Christiania. 



Junipcrus communis, L. — Galls of Hormomyia junipcrina, 

 L., on the twigs. Near Ulvik and Falejde. Eecorded by 

 me {loc. cit., p. 214) from Oifioid in Hardanger. 



Note. — In the Berliner Enlomol. Zcitschrift, 1889, vol. xxxiii. pp. 55-57, 

 Ilerr Riibsaamen describes, under the name of Cccidonujia tiliamvolvcns, sp. n., 

 a midge reared from galled leaf margins of Tilia parvifoliu, found by him at 

 Siegen ; and {loc. cit., \i. 57) he attributes to the same insect the similar galls 

 described by me from Eide(7Va?is. But. Sue. Edin., 1888, p. 203). 



