( xxvii ) 



than ho expected in so nortlicrly a locality (Husavik is 

 upwards of GG° N. lat.). The numbers of Diptera were 

 astonishing ; they were not the ordinary CaUiphora erythro- 

 cepluda, which occurs in numbers on rotting fish all round 

 the island, but the species that frequents sea-weed on the 

 sand. Multitudes of this fly flew on board the steamer, black- 

 ening the windows of the deck saloon, and some continued 

 there until the vessel's arrival at Granton. Dr. Walker further 

 observed that he had captured there about a dozen specimens 

 of a small species of Ichneumon, which, along with numerous 

 Diptera, had settled on soles that had been spread out on the 

 greensward to dry. He also adverted to the rarity of 

 Hymenoptera, whether Bombi or Ichneumonida3, in Iceland, 

 and to the fact of his having taken three specimens of a large 

 species of Ichneumon at Akureyri, which might possibly not 

 have been previously noticed in the country. He next 

 described the great interest attaching to so northerly a place 

 as Siglufjordr, the most northerly fjord that he had visited 

 (lat. 66.9''), and stated that on that account he had taken 

 careful note of all the species he had met with there. In 1889 

 he had not observed any moths there. Flusia interro<jationis 

 had been recorded by Staudinger as captured there by 

 Finsterwalden in 1856, and to this he had now to add 

 Crymodcs exults, Voremia immitata, and Aphelia jyratana. 

 Dr. Walker then remarked on the wide distribution, but at 

 the same time extreme rarity, of a large dipterous insect 

 striped like a Syrphus {Sericoimjia lappona) that he had been 

 the first to take in Iceland. He had to report its occurrence 

 at Eeykjavik in the south-west, Seydisfjordr on the east 

 coast, and Akureyri on the north, but he only obtained 

 six specimens in all, namely, two at Akureyri, one at 

 Seydisljordr, and three at Keykjavik. He said he had 

 taken three additional specimens on the blossoms of the 

 marsh marigold at Thorshavn in the Faroes, on June 9th, 

 where he had also to report the capture of two species of 

 Kristalis (a genus of Diptera not found so far north as 

 Iceland), as well as of the following moths : — Crymodes 

 exulis, Charaas graminis, L'oreinia munitata, Coremia pro- 

 puynata, Emmdcsia alhulata ? , and Scoparia amhiyualis ? . 



