4 University of Michigan 



Tipula inermis Doane. — This species was of wide occur- 

 rence, it extended thru practically all habitats in the region 

 studied. 



Tipula spcciosa Loew. — Several specimens of this species 

 were collected in the swampy margin of the hardwood forest. 



Tipula trivitta Say. — A few specimens of the species were 

 secured from low wooded ground near the high ridges. 



Tipula vicina Dietz. — This species was rather rare, a few 

 specimens were taken at the margin of an ox-bow lake on the 

 river flood plain, July 14 and 20. 



Tipula sp. — This species is represented by a single undeter- 

 mined female. 



Tipula sp.n. — 'Alanuscript name is herctica," Dr. Dietz. 

 Several specimens of this form were taken on hazel brush on 

 the high river bank, July 13. 



Bittacomorpha clavipes Fabricius. — This species was com- 

 mon in the tamarack and spruce swamps and in sloughs but 

 rare on the sand plains. 



