2 University of Michigan 



of jack pine, birch and aspen. Considerable swamp areas 

 were present, sometimes open and grassy, again with a heavy 

 growth of black spruce and tamarack. In general the region 

 was bounded north and south by two high moraines which sup- 

 ported a magnificent hardwood forest of maple, beech, bass- 

 wood and yellow birch wath a scattering of hemlock. These 

 ridges were studied. The Manistique River flowed through the 

 region, and on its flood-plain was much hardwood timber. 

 ]\Iany excellent habitats for the Tipulidse were found about 

 the numerous ox-bow ponds and sloughs formed by the river 

 meanders on this plain. 



All of the species listed were determined by Dr. W. G. Dietz, 

 to whom the writer is indebted for much assistance. In all 

 some twenty-three species are listed, and include, according to 

 Dr. Dietz, four apparently new forms, one of which^ has been 

 described by him. 



List of Species 



Rhipidia maculata Meigen. — A number of specimens were 

 taken inside the log camp, others were attracted to hght lures, 

 and several specimens were found in a clearing on the sand 

 plains. 



Liiiuwbia solitaria Osten Sacken. — ^Specimens were taken 

 in the forest on the morainal ridges, from open swamps and 

 sphagnum bogs. 



Elcphantouiyia wesfzcoodi Osten Sacken. — This species 

 was collected frequently in marshy thickets along creeks. 



Brioptera annaia Osten Sacken. — Specimens of this species 



1 Dietz, W. G., Key to the North American Species of the Tricolor Group of 

 the Dipterous Genus Tipula Linnsus, with descriptions of Four New Species. 

 Ent. News, XXVIII, No. 4, April, 1917. 



