160 NATURAL HISTORY OF ARCTIC AMERICA. 



of June. The cocoon lias attached to it a fragment of a lichen and 

 several coniferous needles, and was evidently formed on the ground 5 

 these objects are merely slightly attached and form no part of the struc- 

 ture itself. The cocoon, which is close in texture, yet very frail and Iight 7 

 contains the black and shining pupa, which is unusually thickly clothed 

 with brownish hair. 



Curtis says of this species : "It is a very abundant insect, especially 

 in the caterpillar state, for about a hundred were collected 011 the IGth 

 of June 1832, near Fury Beach. 77 His description of the larva does not 

 well accord with the present specimen. He says : " The caterpillar is large 

 and hairy, and of a beautiful shining velvety black, the hairs being 

 somewhat ochreous ; there are two tufts of black hair on the back, fol- 

 lowed by two of orange." His description of the pupa and web, as well 

 as of the perfect insect, agrees with the specimens now received. He 

 gives the food-plant of the larva as Saxifraga tricuspulata and &. 

 oppositifolia. 



I have recorded (Psyche, 1, 131) the occurrence of this species above 

 the tree-line on Mount Washington, N. H. It is another instance of the 

 distribution of our existing species of moths, through the agency of the 

 change in climate attending the Glacial Epoch. 



5. No. 1431. Anarta melanopa (Thunb.). 



A single specimen collected at Disko Fjord, Disko Island, August 9 r 

 1878. This species has been taken above timber-line, 13,000 feet eleva- 

 tion, by Lieut. W. L. Carpenter, on Taos Peak, Eocky Mountains. It is 

 found also in Labrador, and has been collected by Mr. George Dimmock 

 near the summit of Mount Washington. 



6. No. 1127. 



A single specimen of a small dusky gray moth too much rubbed for 

 positive identification and otherwise mutilated. The eyes are naked, 

 the ocelli apparent. It was taken at Kikkerton Island, Gulf of Cumber- 

 land, July 25, 1878. 



DIPTEEA. 



7. No. 1061. Culex sp. One specimen; American Harbor, Gulf of Cum- 



berland, July 10, 1878. 



8. Nos. 1061, 1127. Tipula arctica Curt. Two specimens ; American Har- 



bor, Gulf of Cumberland, July 10, 1878 5 and Kikkerton Island, 

 Gulf of Cumberland, July 25, 1878. 



9. No. 1431. Rhamphomyia sp., perhaps R. nigrita Zett. Two specimens; 



Disko Fjord, Disko Island, Greenland, August 9, 1878. 



