418 IvxR Trägard. 



Koldewey-Islands 13th August 1906; 2nd camping-place 30. August 

 1906; Hvalrosodden 25th May 1907; Stormkap 18th, 22th and 25th 

 June 1907 ; Thermometerfjældet near the harbour 24th August 1907 ; 

 Seal-lake (no date); S. E. of Stormkap 19th June 1908; Maroussia 

 19th June 1908; a swamp between Rypefjældet and Hvalrosodden 

 4th and 5th July 1908. 



SYSTEMATIC PART. 

 Fam. Parasitidæ. 



Subfam. Parasitinæ. 

 Parasitus Latr. 

 P. fucorum (D. G.). 



Of this species numerous nymphæ where found on Bombus sp. 

 as well as in moss. 



Localities: Stormkap, 18th, 21th and 22th June 1907; on Bombus 

 sp. (two species) on the Thermometerfjæld near the harbour, 21th 

 June 1907. 



Distribution: East-Greenland (Ryder's expedition 1891); West- 

 Greenland, Tigsaluk, on Bombus sp., 8th September 1889; Holstenburg, 

 on Bombus sp. 18th June 1890 (W. Lundbeck). 



The nymphæ have also been recorded from Italy, France, 

 Netherlands and Sweden, from the southernmost part to the regio 

 alpina superior of the Lappland mountains. 



The adults were unknown until 1907, when they were discoAcred 

 by the author in the nest of Bombus kirbyellus in the Sarek 

 Mountains (13. p. 385). 



The species has undoubtly a wide distribution and will probably, 

 on further investigation, be found everywhere in the arctic and 

 palæarctic region where there are humble-bees. 



Subfam. Lælaptiuæ. 



Eulælaps Berl. 



E. ambulans (Thor). 



Locality: Numerous tritonymphæ femininæ générantes Avhere 

 found under loose stones lying on moist ground, Maroussia, 19th 

 June 1908. 



