6 University of Michigan 



List of Species. 



ponerinae. 



1. Ponera coarctata Latr. subsp. pennsylvanica Buckley. — 

 The first specimen of this species seen on the island was a sin- 

 gle worker taken in the very heart of a nest of Pheidole vine- 

 landica in a rotten log on the dry beach. There were no others 

 in the nest or in the vicinity. Another isolated specimen, also- 

 a worker, was taken in the damp, black leaf-mold under the 

 dead leaves in the low hardwood forest. A nest found on Sep- 

 tember 21 was the only one seen on the island. It was located! 

 on the west beach in thoroughly rotted, dry, powdery wood. 

 There were less than fifty in the colony. The ants were very 

 secretive, immediately abandoning their few larvae and bur- 

 rowing into the loose wood-dust when uncovered. After the 

 lapse of a few minutes, three of them returned cautiously and 

 each carried away a larva, but all the others were abandoned 

 permanently. The species was decidedly rare on the island 

 and the only representative of this primitive subfamily. 



MYRMICINAE. 



2. Solenopsis molesta Say. — A single individual of this- 

 genus and species was collected on the island. The writer was 

 sitting on the rock outcrop of the north beach writing some 

 field notes when he noticed this single ant on his boot. It 

 furnished the only record for the island, for although the ant 

 was a worker the colony could not be found. 



3. Pheidole vinelandica Forel. — A large number of speci- 

 mens of this species v»'ere found in the sand on the dry west 

 beach, on September 19. There was no external evidence of 

 the presence of so many ants, but on pulling up a clump of 

 dune grass I found the roots literally covered with them. They 



