1939] 
Notes on Strumigenys 
91 
NOTES ON STRUMIGENYS FROM SOUTHERN OHIO, 
WITH DESCRIPTIONS OF SIX NEW SPECIES 
By Laurence G. Wesson, Jr., and Robert G. Wesson 
Baltimore, Md. 
The following paper is a list, with biological notes, of 14 
species of the peculiar and little known genus, Strumigenys , 
six of which are new and are here described. 1 All the 
material was collected within 45 miles of Jackson, which is 
located centrally in southern Ohio. 
Strumigenys (Cephaloxys) pergandei Emery 
In a previous paper 2 it was shown that S. pergandei lives, 
in southern Ohio at least, near the colonies of various other 
species of ants, hunting the Collembola which often abound 
in the nests of these other species. Since the publication of 
that paper, we have found S. pergandei on more than 30 
occasions in this region, and only once was it not obviously 
associated with another ant. Stray workers have been 
found in nest galleries of Camponotus herculeanus subsp. 
pennsylvanicus (Degeer), Formica fusca (L.), and F. 
truncicola subsp. integra Nyl. Three workers were found in 
an outlying gallery of a F. fusca mound. The gallery led 
from the mound to a small kitchen midden to which the 
pergandei seemed to be going, not, as experiments have 
!We wish to express our deep appreciation to Dr. M. R. Smith, U. S. 
National Museum, for his suggestions as to the relationship of several 
of the new forms, as well as for his loan of much cotype material for 
comparison. 
The types of the new species are to be deposited in the collection 
of the Museum of Comparative Zoology, Cambridge, Mass. Para- 
types, when present, will be deposited in the collections of Dr. C. H. 
Kennedy, Ohio State University, Columbus, Ohio, Dr. W. S. Creighton, 
College of the City of New York, the U. S. National Museum, Wash- 
ington, D. C., the American Museum of Natural History, New York, 
and the authors. 
2 Wesson, L. G., Jr., Contributions to the Biology of Strumigenys 
pergandei Em., Ent. News, vol. 47, pp. 171-174 (1936). 
