Vol. xxvi] entomoijocical news. 115 



The Lepidoptcra of the Douglas Lake Region, North- 

 em Michigan.* 

 By Paul S. Weixh, Manhattan, Kansas. 



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

 tunity to study the Lepidoptera of northern Nfichigan in the 

 immediate vicinity of Douglas Lake. Collections made 

 tliroughout 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 poatible, 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 doubtkss complete enough to give a 

 fairly accurate idea of the Lepidopterous fauna of this region. 

 Tortriddx and Tineidc were coUected at every opportunity, 

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

 although a few of the more eanlj identified tpedet have been 

 included in the Ust 



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 fore^ fire* 

 and lumbermen. Kxtensive burned-over tracts occur near the 

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

 M ' . and other plants common to indi a situation. Two 

 I>t tracts of hardwoods lie near the shores of the lake. 



Two extensive cedar bof^ and several smaller ones are present 

 in the immediate vicinity. Aloni; 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. Exceptini; 

 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 tpedet of 

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

 th. - n. Such a flora can furnish food f or the lanrg of 

 iitkm frorn^ the Unhrmity of Michigan Bwlogiail Statioo, 

 Nu. M- 



