PROC U.S NAT. MUS. VOL. 123 WOODRUFF AND CARTWR IG HT — PLATE 2 



Figures 1, 2. — 1, Dr. J. C. Moser examining the barrel-sized "central cavity" in 

 a large nest (these cavities are usually 8-12 feet below soil surface); 2, detritus 

 cavities are special holes dug for deposit of exhausted fungus gardens, deceased 

 ants, and other refuse (most species of inquilines are found here). (Photos cour- 

 tesy U.S. Forest Service.) 



