66 Fritz Johansen and I. C. Nielsen- 



The prolegs are situated on the 3rd to 6th abdominal segments 

 and the last segment bears a pair of anal-prolegs. The forelegs are 

 brownish: 



In the living larva the colour on the anterior third is light 

 yellow and backwards the colour evenly changes to light-red. 



A pair of pupae, which were found together with the larvae, 

 are ca. 9 mm. long, brownish, slender and quite without spines or 

 appendages. 



1. Colias hecla Lefbr. 



A number of specimens from July and beginning of August. 



2. Argynnis chariclea var. arctica Zett. 



Many specimens from the end of June and into July. 



3. A. polaris Bois. 



This species seems to be just as common as the preceding; its 

 time of flight is from the end of June on into August. 



4. Lycaena orbitulus var. aquilo Bois. 



More rare than the three foregoing butterflies; flies in July. 



5. Dasychira groenlandica Woche. 



Many larvae have been brought home; they were taken on 

 willows and Dryas. The larvæ are seen in the end of May and the 

 cocoons, full-grown larvae and pupae were found at the end of 

 June and half-grown larvae were also found at the same time, so 

 that AuRiviLLius is right in his view, that the generation of this 

 species takes more than one year. On a cocoon found on July 8th 

 a clump of Dasychira eggs was found deposited. 



6. Anarta Richardsonii Curt. 



A number of specimens from the end of June till on in August. 

 Some larvae were brought home; one, which was not full-grown, 

 was found hibernating under Dryas on May 3rd 1907 and full-grown 

 larvae were collected in June of the same year. 



The larva reaches a length of 3 cm. The head is brown, the 

 clypeus and the antennae darker; the dorsal plate on the 1st 

 thoracic segment brown with dark marbling. The upper surface 

 of the body dark brownish with a broad, light dorsal line, which 

 is divided in the middle by one or two continuous, fine, dark lines. 

 The sides and the under surface light brownish. 



7. Anarta lapponica Thunb. 



Two specimens from the beginning of July. To this species 

 probably belongs another Noctuid larva which was found under 

 Dryas on May 19th 1907. 



The length of the larva is ca. 15 — 20 mm. The head is black; 



