t)() Proceedings of the Biological Society of Washington. 
nest inateriiil at niglit and perliaps dnrinj; sttjrms. Tlie ants are very 
active in the morning and evening, hnt during the hottest ))art of the day 
they are not seen unless disturbed. Tlie nests examined were very deep, 
being by no means restricted to tlie mounds. 
Large flights were noted from August d to 5, and during that period 
it was common to find isolated, dealeated females digging in the hard, 
dry soil to found new colonies, or to see small holes in the ground 
which upon being opened revealed a female at a depth of 2 inches or less, 
usually in a small chamber, and very rarely with a cluster of eggs, usually 
less than a dozen in number. (Quantities of larvae and i)upaeand frequently 
eggs were commonly found in the nests opened during the summer. The 
young ants are very clear, light yellow, with head and thorax inclining 
to light brown or dull orange, de 2 :)endent aj)parently on the age of the 
individual. 
