2(5 [Febniaiy. 



at the right date we saw nothing of it, the weather was probably to 

 blame, as Ch. Noma, which occurs close by, hardly put in an 

 appearance. 



A. Pales was widely distributed, and in a few places abundant. 

 It varied a good deal in intensity of markings, and in tone of colour, 

 some being almost referable to Arsilache, one very small and nearly 

 colourless specimen was taken. 



Chionohas JVornn flew on broken slopes of the Skaadavara (a hill 

 bounding the mouth of the Alten valley to the west), and one was 

 seen on the flat near the river. Its habits of fligbt, resting on rocks, 

 as well as its habitat, were all very similar to those of Acllo. 



Colins Palceno occurred everywhere, and with fine weather a grand 

 series might no doubt have been taken. There was considerable range 

 in the intensity of colour in the males, and hardly two specimens were 

 alike in the extent and outline of the dark margin, and the degree in 

 which it was suffused with yellow scales ; in some of the $ s it was 

 nearly obsolete, whilst the yellow tint differed little between Bossekop 

 and Saeterstoen specimens, the black border was markedly broader 

 in the specimens from Saeterstoen. 



PoJyommatiis Hippoilioe (var. Sflehcri ?) was not infrequent, and 

 in some places, especially near the shore at Bossekop, where the fruit 

 of Rumex acetosella tinted the ground, P. Phlaeas was abundant. 

 Phlaas varied much in size, and also in the size of the dark markings, 

 the spots being confluent in one or two specimens, the under-sides 

 were of a much cooler greyer tone than in the English form. 



Pamphila comma was abundant on the lower ground in many 

 places. The spots beneath were opaque-white, and the ground colour 

 a dark green, much irrorated with black scales, these in many speci- 

 mens formed a black margin to the white spots, throwing them up 

 into tine relief, especially in some specimens where the spots were 

 very large, and nearly confluent into a continuous band. 



Our total list of butterflies taken at Bossekop included only twentj-two 

 sjjecies : — Pieris napi, var. bryonice, Colias PalcBno, Hecla, Argynnis Aphirape, 

 Selene, Euphrosyne, Freija, Frigga, Pales, Vatiessa Antiopa, tirticce, Erehia ligea, 

 lappona, Disa, Medusa, var. polaris, Chionobas Noma, Polyommatus Hippothoe, 

 Phlceas, Lyccena Optilete, Argus, Icarus, Pamphila comma. 



In some species there is much greater variation, or, perhaps I 

 should sa}', much more frequent variation than in British examples. 

 Argynnis Euphrosyne and Selene exemplified this especially, and 

 perhaps impressed the fact somewhat unduly on our attention. 

 Euphrosyne at Saeterstoen varied from a pale, nearly English form, to 



