14 University of Michigan 



The species was very secretive and apparently rare on the 

 island. It was never noted outside of the hardwood forest, 

 in which it ranged from a low damp environment to the high 

 dr)^ forest close to the beach. All four of the specimens col- 

 lected were workers, and, as stated, no colonies were found. 



9. Myrmica scahrinodis Nyl. var. — A small colony of this 

 species was found on September 21 in the dry oak woods near 

 the beach. The nest was in a small clearing in the forest, where 

 there was a fairly complete cover of fine grass and brake ferns 

 with a thin litter of dead leaves. The soil was very dry, the 

 sand showing no moisture even at a depth of several inches. 

 The entrance to the burrow was concealed beneath a dead leaf, 

 and there was no exterior sign of the presence of the colony. 

 No pupae or larvae were found. A few feet from this colony 

 an isolated female of Lasiiis minuttis was found (see notes 

 under that species for September 21). On September 19 three 

 specimens were collected in the open woodland by the east 

 beach. This was another very dry habitat with a fairly com- 

 plete ground-cover of fine grass and a few clumps of wild rose 

 and serviceberry bushes. AH three of these specimens were 

 found among the grass roots, and were within a few inches 

 of a colony of Lasius americmius. More specimens were col- 

 lected on the high beach fifty yards from the place just noted, 

 all from earth that was disturbed in pulling up some of the rose 

 bushes and from the roots of the bushes themselves or the ad- 

 hering grass. The ants were not numerous, less than thirty 

 were seen, but there was undoubtedly a nest that was destroyed 

 in the uprooting of the rose. A single specimen of Formica 

 nitidiventris was taken here on the bare sand. 



On September 26 six winged males were collected on the 

 limestone outcrop of the north beach. They were not found 

 together, but all occurred on a hundred yard stretch of beach. 



