AXTS, 



with the fact that the nest of this colony was under a stone, because 

 tennesseensis normally nests only in rotting wood. During the summer 

 of KJO2 1 found near Rock ford. 111., two mixed colonies like that 

 observed by Schmitt, except that the variety pieeu was represented by 

 the variety nulis. I'.oih colonies were of small size and situated under 

 stones. In one of them a tennesseensis queen was unearthed. There 

 can be little doubt, therefore, that the glabrous queens seek out small 

 nc^ts of some variety of fnlra and start their colonies in them just as 

 consocians doe.- in the nest of inccrta. This habit is also indicated by 

 the sporadic distribution of tennesseensis and its occurrence only in 



Fu;. 264. In the first vertical row: virgin and dealated female of Aphanogaster 

 tennesseensis; in the second vertical row: male and two workers of the same spe- 

 cies ; remaining figures : virgin female, male and workers of Apha-nogaster ftilra. 

 ( i]/2. (Original.) 



localities where some form of fnlra is abundant. After the extinction 

 of the host workers the pure tennesseensis colony evidently migrates 

 into old logs and stumps and there attains its full development. A 

 single adult colony of this species, like that of consocians. produces a 

 great number of small females, whereas the non-parasitic Aphceno- 

 f/aster have all they can do to bring up a few of their large queens. 

 Another Aph&nogaster (A. niarlcc], which is a rare species taken only 

 in the Atlantic States and structurally closely related to tennesseensis. 

 also has very small females (4.5 mm. long), with large epinotal spines. 

 It is, in all probability, like this species, a temporary parasite in nests 

 of A. fnlra. 



(>. Oxygyne. Forel has assigned to a special subgenus, O.vyyync, 

 a series of Cremastogaster species (einnicc, ebenina. soror, trarancoren- 



