ZOOLOGY. 



THE LEPIDOPTEKA OF THE SHETLAND ISLANDS, 



WITH REMARKS UPON THE OCCURRENCE OF THE SPECIES IN 

 OTHER NORTHERN REGIONS, IN THE MOUNTAINS OF THE 

 NORTH AND MIDDLE OF GERMANY, AND IN THE SWISS ALPS. 



By AUGUST HOFFMAN in Hanover. 

 (Translated from the Stettiner Entomologische Zcitung XLV., 1884, 



PP- 2 53-75-) 



IN the autumn of 1883, I received from Mr. H. MacArthur 

 some consignments of Lepidoptera, which he had collected 

 in the Shetland Islands. These had a very great interest for me, 

 on account of the many points of resemblance, which I found in 

 their varieties, to those of the Upper Harz Mountains. 



The Shetland Islands, consisting of four larger islands, viz., Main- 

 land, Yell, Fetlar, and Unst, and many smaller ones, lie to the 

 N.N.E. of Scotland, between 59°8 and 6o°52 North, about the 

 same latitude as the southern point of Greenland, thus being upon 

 the border of the Arctic Region. 



Mr. MacArthur's captures, collected from the Islands of Main- 

 land and Unst, during the years : — 1880, from the end of April to 

 the end of August; 1881, from the beginning of May to the 

 middle of September; and 1883, from the end o'f May to the 

 beginning of September, have already been discussed in the 

 Entomologist \ as under : — 



1880, pp. 249-251 and 289-293; i88i,pp. 278-281; 1884, pp. 1-4, 

 by Messrs J. Jenner Weir (Macrolepidoptera) and Howard Vaughan 

 (Microlepidoptera). The very valuable remarks of these gentle- 

 men have been written from an English point of view — that is to 

 say, from the point of view that the majority of English collectors 

 take up ; they treat the collections from the Shetland Islands in 



