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ENTOMOLOGICAL TRAVELS IN NORWAY. 



By George Ritter von Frauenfeld. 



[Extracted from his " Bericht liber eine Raise durch Schweden und 

 Norwegen im Sommer 18G3," in the Verhandlungen der k. k. 

 zoologish-botanischen Gesellschaft in Wien, 1863.] 



From Trondhjem I resolved to continue my journey by land ; 

 I had, liowevei', to wait here for three days for remittances. 

 This time I devoted to excursions and visited the two Leer- 

 forss, beautiful and powerful waterfalls of the Nid, in the 

 foaming cataracts of which saw-mills and forges are con- 

 structed. 



A spherical gall, just in the act of development, which I 

 found on willows, was to me extremely interesting, because 

 in several of them, which already had a d;ameter of 2 — 3 

 millimetres, I found the egg still unhatched, showing that 

 the original formation of the gall was clearly due to the 

 introduction of some inoculatory matter. 



A Psylla larva, which I had already noticed on the birch- 

 trees at Bodo, was here in extreme profusion on the alders, 

 and was very conspicuous, seeing that the creature, only two 

 millimetres in length, carried on its anus a radiating tuft of 

 a resinous secretion of nearly twice that length, so that the 

 twigs, on which they were closely packed, appeared covered 

 with a blueish-white shaggy substance. 



Monday, July 6. — I proceeded on my journey by post. 

 The carriages have two wheels, with a narrow longish seat 

 for one person, and generally with wooden springs. Behind 



