IGO NATURAL HISTORY OF ARCTIC AMERICA. 



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

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

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

 ture itself. The cocoon, whicli is close in texture, yet very frail and light^ 

 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 on the IGtli 

 of Juno 1832, near Fury Bea6h." His description of the larva does not 

 well accord \\i1 h the present specimen. He says : " The caterpillar is large 

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

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

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

 as of the perfect insect, agrees with the specimens now rc^ccivcd. He 

 gives the food-plant of the larva as Saxifrcufa irkuspidutu and *S'. 

 oirpositifolia. 



I have recorded (L'sychc, 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. Anorta melanopa (Thunb.). 



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

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

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

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

 near the summit of Blount Washington. 



C. Ko. 1127. 



A single specimen of a small dusky gray moth too much rul>l)ed for 

 positive identification and otherwise nuitilated. The eyes are naked, 

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

 land, July 2.J, 1S7S. 



DIPTERA. 



7. No. 10(11. C'«</t'.r sp. One sijecimeii ; Auu'rican Harbor, Gulf of Cum- 



berland, .luly 10, 1S78. 



8. Nos. 1001,1127. Tipida arctica Curt. Two specimens; American Har- 



bor, Gulf of Cumberland, July 10, 1878; and Kikkerton Island^ 

 Gulf of Cumberland, July 2."".. 1S7S. 



9. No. 1431. J?//flwp/jom///asp., i»eili;ips /,'. )iujrita Zett. Two s]»ecimens; 



Disko Fjord, Disko Island, Greenland, August 0, 1878. 



