The Insects of tlic "Danmark" Expedition. 65 



gical Journal, that it struck him as surprising that the East Green- 

 land hares were infested with fleas, as he had never observed these 

 on hares in West Greenland. 



Lepidoptera. 



Of the 20 species of butterflies hitherto known from East Green- 

 land 9 occur in the collections, and these also contain a species new 

 to the East Greenland fauna, Sericoris Schiiltziana. 



Of the larvae of the Greenland butterflies the larva of Dasychira 

 has long been known, and in 1900 AuRIVILLIus^ described the larvae 

 of the two Argijnnis species. There is a number of lepidopterous 

 larvae in the collections, a few of which could be referred to their 

 species; these are described here under the separate species. 



A single Heterocera larva, which cannot be referred to any of 

 the known Lepidoptera of Greenland, was found on June 15th along 

 with pupae in a cocoon under flat loose stones. The larva (fig. 14) 

 is about 8—9 mm. long, spindle-shaped; its greatest breadth falls 

 across the 2th— 3th abdominal segment. 



The head is only a little narrower than the 1st thoracic segment 

 and longer than this, almost square-shaped, brown with a few long 

 bristles; the upper lip somewhat darker; base of the feelers light, 

 the tip black. The first thoracic segment with a dorsal plate of the 

 same colour as the head; the anterior margin of the plate лvith a 

 row of 6 bristles, the posterior margin likewise with 6, the two 

 innermost of which stand further in on the plate than the outer 

 ones. The base of the bristles surrounded by faintly delimited, 

 sometimes continuous dark spots. The two following segments and 

 the abdominal segments light with brownish spots. The thoracic 

 segments have almost in the middle a transverse row of 6 dark 

 spots, of which the innermost is the largest and the outermost very 

 small, and the hind margin has two, lying behind the outermost in 

 the front row, with which they agree in size. The front margins 

 of the abdominal segments with four spots, the two inner being the 

 largest and broader than long, the outer rounded; the posterior 

 margins with two spots, which stand behind the two central ones 

 in the front row. The preanal and the anal segment bear a brown- 

 ish plate with some bristles. Along the sides of the abdominal 

 segments are two rows of spots and along the underside 4 rows. 

 All the spots bear a bristle in the middle. 



1 Chr. Aurivillius: Lepidoptera och Coleoptera indsamlade under Professor 

 A. G. Nathorst's arktiska expeditioner 1898 och 18У!), under den svenska expe- 

 dition till Beeren Eiland och under Konservator G. Koltofïs expedition til Grön- 

 land (Öfversigt kgl. Vet. Akad. Forh. 190U, p. 1K^5). 



XLIII. r: 



