The Crane-flies collected by the Canadian Arctic Expedition, 



1913-18. 



By Charles P. Alexander, Ph. I). 



Introduction. 



The collection of crane-flies made by the Canadian Arctic Kxpnlit ion i- 

 quite extensive, and includes about 100 specimens of adult-, larvae, and pupae. 

 The types and uniques have been placed in the Canadian National I lolleotion; 

 certain of the paratypes and duplicates arc retained in the collection of the 

 author. The present report has been divided into two general portions, the 

 first on the taxonomy of the adult flies, the second a consideration of the imma- 

 ture stages and the biological data secured by the collector, Mr. Frits Johansen! 



The material represents as satisfactory a collection of Arctic American 

 Tipulidae as has yet been brought together. The itinerary and general narral ive 

 of the Southern Division of the Expedition has been recorded by Dr. R» M. 

 Anderson (1917). 1 



Bibliography. 



There have been rather numerous species of crane-flies described from the 

 Canadian Arctic Northwest, the more important reports on these collections 



being as follows:— 



Kirby. Wm., (1824) in the supplement to Capt. Parry's first voyage described Stygeropis i><inii 



(Kirby). 

 Curtis, John (1831) in the appendix to Ross's voyage to the Antic regions, described Tipula 



arctica Cintis. 

 Loew, Hermann (1863-1865) in the Centuries of North American Diptera described the numerous 



species of Tipulinse collected by Robert Kennicott, now in the Museum of Comparative 



Zoology at Cambridge. These specimens bear the general label of "H.B.T." only a few 



of them having any more exact label. In another paper (Proceedings of the Academy <>f 



Natural Sciences of Philadelphia, September, 1915, pp. 158 165 I have discussed Loew's 



species and their present condition. 

 Osten-Sacken (1859-1869) described most of the Limnobiinse collected by Kennicott and also 



(1876) Tipula besselsi, from Polaris bay, Greenland, at aboul 82 degrees north latitude, 



collected by Dr. E. Besscls in 1872. 

 Bergroth (1888) described several new species mostly from Sitka. Alaska. .Most of these were 



rediscovered on the Harriman expedition (see Coquillett i. 

 Williston (1893) described Sti/i/cropis ben/roth i from Alaska. .The type was recorded as having 



been placed in the Kansas University collection. bu1 is no1 mentioned among the types in 



Hunter's list (Kansas University Science Bulletin, vol. 8, No. I. p. I s ; 1914 nor bav< I 



been able to locate the specimen. 

 Doane (1900, 1901) described a very few species from Unalaska, his types being in the collection 



of the United States National Museum. 

 Coquillett (1900), The Crane-Hies of the Harrinian Expedition to Alaska, the types are now 



in the collection of the United States National Museum. 

 Dietz (1915), two Limnobiiue crane-flies collected by Francis Barper in the Athabaska country. 

 Alexander (1915-date), species collected by Kennicotl in the Loew collection bul never described 



by Loew; the types are now- in the collection of the Museum of Comparative Zoologj 



The crane-flies of the Pribilof islands, now in the collection of the United State- Biological 



Survey. 



The most important collections from the Arctic Northwesl may be con- 

 sidered to be the following: Kennicott's collections, the HarrimaD Expedition, 

 the Pribilof islands collections, and the present one. 



1 Report of the Department of the Naval Service for the Fiscal "> ear ending March 31st, 1917. Ottawa: 

 A 1-2, pp. 22-70. Also Summary Report of the Geological Survey. Dept. ol Mines, f>>r the calendar 

 year 1913. Ibid. 1914, 1915, 1916. 



Vol. iii— 46963— 1J 



