1939] 
Notes on Strumigenys 
93 
hillside woods. Another colony was found in an almost 
identical situation in dense, oak woods. In the latter case 
a worker was first seen in a frequented gallery of A. fulva 
aquia under a large stone. The nest was located about 3 cm. 
to one side of the stone, and consisted of an irregular cavity, 
perhaps just a crack in the soil, barely beneath the humus. 
It contained not more than 20 workers. Both localities 
were in Pike County. 
Strumigenys (Cephaloxys) deitrichi M. R. Smith 
We have taken this ant in Pike, Lawrence, and Adams 
Counties. On 4 occasions workers were found under the 
bark of somewhat decayed logs in open, dryish woods. In all 
of these logs have been colonies of other species of ants, such 
as Formica truncicola subsp. Integra Nyl., Aphsenog aster 
tennesseensis Mayr, A. lamellidens var. nigripes M. R. 
Smith, A. fulva Roger, Proceratium crassicorne var. vestita 
Emery, Ponera coarctata subsp. pennsylvanica Buckley. 
One long, decayed, hickory log, covered with a tough layer 
of bark, was remarkable in containing colonies of at least 
11 species of ants, including 5 species of Strumigenys. The 
log, lying on the edge of some woods, extended from deep 
shade through a clump of bushes into broken sunlight. The 
ant species, in approximate order from shade to sun, were : 
Strumigenys deitrichi M. R. Smith, Ponera coarctata subsp. 
pennsylvanica Buckley, Aphsenogaster fulva subsp. aquia, 
Buckley, Strumigenys pulchella Emery, Solenopsis molesta 
(Say), Strumigenys medialis new species, Strumigenys ros- 
trata Emery, Proceratium crassicorne var. vestitum Emery, 
Lasius niger var. neoniger Emery, Strumigenys pergandei 
Emery, and Crematogaster lineolata (Say). Several work- 
ers of S. deitrichi were found in the loose humus in the cedar 
grove described below under S. missouriensis M. R. Smith. 
In none of these cases did we observe definite indications 
of an association between S. deitrichi and the other species 
of ants living near them, such as the presence of deitrichi 
workers in frequented galleries of the other. 
Strumigenys (Cephaloxys) clypeata Roger 
A nest of clypeata was found in the duff at the base of a 
small pine tree a few inches from a colony of Myrmica 
