6 University of Michigan 



It was, as a rule, rather breezy in this habitat, and the butter- 

 flies were attracted to the spiraea that was somewhat protected 

 from the wind usually by a small dune or hillock. Such but- 

 terflies as Argynnis atlantis, Colias interior, Limenitis arthe- 

 iiiis and Grapta j-albnm were particularly abundant and 

 Picris napi, Tcrias lisa and others were occasionally seen. Mr. 

 Andrews found Juiwiiia ca^iiia and Colias philodicc quite 

 frequently at the spiraea blossoms during the early part of 

 July, 191 3, although they were not noticed the following year. 



Szvamp Areas, (a) Open Grassy Meadozvs: These meadows 

 occur east of Cranberry Lake and eastwardly from Long 

 Marsh Lake. The vegetation besides marsh grass consists of 

 occasional clumps of flowering plants and shrubs such as 

 spiraea, ninebark and willow. A few moths and butterflies 

 frequent this habitat. The writer noticed among the latter 

 Brcntliis myrina, Brcntliis bcllona, PJiycoidcs tJiaros, Argyn- 

 nis atlantis and Colias interior. But few butterflies were seen 

 in the grassy marshes near Long Marsh Lake probably be- 

 cause the situation was a little too windswept. The low sparsely 

 timbered sand ridges between the marshes and north beach 

 did not afford sufficient protection from the prevailing wester- 

 ly winds. The writer expected to find some species of Hes- 

 peridse in this habitat but was disappointed. 



(b) Cranberry Marshes: Along the northwestern end of 

 Cranberry Lake is a cultivated cranberry marsh owned by 

 Mr. House. There is also a small marsh just east of Clarke 

 Pond and adjoining it is a grassy marsh. Also small wild 

 cranberry marshes occur along the southwestern edge of 

 Cranberry Lake and along the western end of Doe Lake, in 

 connection with typical spruce, tamarack, and sphagnum bogs. 



In the marsh near Clarke Pond a few specimens of Chryso- 

 pJianus epixanthe as well as several other species of butterflies 



