1919] Wheeler — A New Paper-Making Crematogaster 111 



different color and with much more opaque and sculptured thorax 

 and pedicel. 



After renewed study of the North American Crematogasters in 

 my collection, and of most of the forms in the field, I incline to 

 regard those that have been cited as subspecies of lineolata by 

 Emery and myself, namely pilosa Pergande, loeviuscula Mayr, 

 coardata Mayr and opaca Mayr, as worthy of specific rank. This 

 is merely a return to the position of Mayr, who described the three 

 latter forms as separate species. The complete list of Cremato- 

 gasters known to inhabit America north of Mexico, and including 

 the two described above, would run as follows: 



C. lineolata Say. 



var. cerasi Fitch 



var. lutescens Emery 



var. subopaca Emery 

 pilosa Pergande 

 IcEviuscula Mayr 



var. clara Mayr 



var. californica Emery 

 coardata Mayr 



var. mormonum Emery 

 opaca Mayr var. depilis Wheeler 



var. pundulata Emery 

 aikinsoni Wheeler 



var. helveola Wheeler 

 ashmeadi Mayr 

 vermiculata Emery 

 arizonensis Wheeler 



vidima Smith subsp. missouriensis Pergande 

 minutissima Mayr 



Additional data on the habits of C. aikinsoni would be of con- 

 siderable interest. Consultation of the atlas shows that, with the 

 exception of Belmont, N. C, all the localities cited for this ant 

 and its variety are near the sea-shore, where the species seems to 

 be confined to swamps, or, at any rate, to regions subject to peri- 

 odic inundation. This may account for the fact that its nest has 

 been so seldom seen, although the ant may be a rather rare relict of 

 a time when the Southeastern States had a more tropical climate. 



