Vol. XXvi] ENTOMOLOGICAL NEWS. 115 



The Lepidoptera of the Douglas Lake Region, North- 



ern Michigan.* 



By PAUL S. WELCH, Manhattan, Kansas. 



During the summers of 1911-1913 the writer had an oppor- 

 tunity to study the Lepidoptera of northern Michigan in the 

 immediate vicinity of Douglas Lake. Collections made 

 throughout the months of July and August of the three years 

 are used as the basis of this report. An attempt has been 

 made to have the list as complete as possible, but future col- 

 lecting will, no doubt, make important additions. However, 

 it includes many species which have not been reported from 

 northern Michigan and is doubtless complete enough to give a 

 fairly accurate idea of the Lepidopterous fauna of this region. 

 Tortricidse and Tineidse were collected at every opportunity, 

 but no attempt has been made as yet to study these groups, 

 although a few of the more easily identified species have been 

 included in the list. 



Douglas Lake, formerly known as Turtle Lake, is situated 

 in the extreme northern part of the southern peninsula of 

 Michigan, about eighteen miles south of the Straits of Mack- 

 inac. Forests of hardwoods and conifers formerly covered 

 the greater part of this region, but only remnants of the pri- 

 meval forest remain the results of the ravages of forest fires 

 and lumbermen. Extensive burned-over tracts occur near the 

 lake and produce a wild profusion of aspen, bracken fern. 

 blueberry, and other plants common to such a situation. Two 

 primitive tracts of hardwoods lie near the shores of the lake. 

 Two extensive cedar bogs and several smaller ones are present 

 in the immediate vicinity. Along the north shore is a series 

 of beach pools, rich in animal and plant life. Five other lakes 

 of varying size lie within a radius of eight miles. Excepting 

 the areas covered by bogs, the soil is almost pure sand. The 

 variety of conditions is accompanied by a corresponding vari- 

 ety in the vegetation, there being about five hundred species of 

 flowering plants and a large number of non-flowering plants in 

 the region. Such a flora can furnish food for the lurv;e of 



^Contribution from the University of Michigan liinln.yk-al Station, 

 No. 24. 



