Notes on Ant Behavior 209 
Behavior 5:337-340, 1915) and it is interesting to note that 
Eo Pipe occurred about one month earlier in 1932 than it did 
1913 when his notes were made. In comparing Dr. Turner’s 
ioe: with my own I find that in both cases the emergence 
followed a two or three day rainy spell, and in both cases the 
day was cloudy and also in both cases the mean temperature 
was 78 degrees F. 
Lasius niger americanus (Emery) [Wm. Mann] 
At St. Albans, Mo., on a high dry sandy plane above the 
Missouri River there were hundreds of nests of this ant, some- 
times in the open sunshiny spaces and sometimes under logs 
or bits of wood. (May 16, 1932). 
Crematogaster lineolata (Say) [Wm. M. Wheeler] 
In an interesting paper on the habits of the tent-building 
ant, Dr. Wheeler* shows that occasionally, but not always, ants 
of this species build sheds over their aphid colonies. Since no 
such instance has been recorded from St. Louis County, and 
the Wheeler article, I think it well to record the same here. 
The shed (fig. 3)+ attached to a twig two i from the ground 
was taken at the outskirts of Kirkwood, in a low valley 
near a creek on October 13, 1928. This was an n unusually warm 
day for so late in the season and when a portion of the wall 
was Sl about 200 aphids and about 50 ants were found. 
Specimens of the ants were identified by Dr. Wheeler, but un- 
in seeking an explanation for the pe risegtoe shed building ae 
havior of this ant, calls attention to the fact that most of 
authors have found the lineolata tents be oy the season, Aes 
and September, in damp localities. Therefore it seems likely 
that sheds are built only when the aphids need protection from 
moisture or cold. He says further that the cold due to greater 
evaporation in such places, coupled with the lateness of the 
season, would probably sips to inhibit the feeding activites of 
the aphids and in order to give off honey dew the aphids must 
feed. The ants by hee Me the aphids from cold may “pro- 
long their feeding hours and increase the excretion of honey 
*Bull. Amer. Mus. Nat. Hist., 22, 1-17, 1906. 
+Unfortunately the middle lower portion of the shed was lost be- 
fore it was phetographed. 
