No. VI. TNSECTA. 237 



DlPTERA. 



j Zett. 



Chironomus polaris, Kirby (and about three other species). 

 Sciara sp. ? 



Trichocera regelationis, L. 

 Tipula arctica, Curtis. 



Tacliina hirta, Curtis ? (and about two others). 

 Pyrellia cadaverina, L. 

 Anthomyia sp. ? 

 Scatophaga sp. ? 



Among the Diptera there is nothing of any special im- 

 portance. The most striking is a 'daddy-long-legs ' (Tipula 

 arctica), well known as an Arctic species. Of the others 

 there are Culicidce (gnats), Trichocera (' winter-gnat,' but 

 appearing there after midsummer), Chironomi (plume gnats), 

 and familiar-looking flies which appeared when offal was 

 thrown away, or the carcase of an animal lay on the ground. 



HEMIPTERA (ANOPLURA). 

 Hematopinus trichechi, Boheman. 



The only so-called Hemipterous insect is a louse (Hema- 

 topinus trichechi) that infests the walrus ; found in the 

 axillae and other parts where the skin is soft. This was 

 originally described from Spitsbergen. 



MALLOPHAGA. 



Docoplwrus ceUebrachys, Nitzsch (and two others). 

 Nirmus cmgulatuSj Burm. 



ph&onotus, Nitzsch. 

 Colpocephalumj sp. ? 

 Menopon gonophaum, Burm. var. ? 



The Mallophaga (bird-lice) are rather numerous in 

 individuals, some of them probably new species, others already 

 familiar. These of course are carried hither and thither by 

 their hosts. 



