586 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



5. Color reddish brown fulva subspecies aquia 



Color pitchy black fulva aquia var. picea 



A. tennesseensis Mayr. 



This species differs from our other species of Aphcenogaster 

 in having very small and very smooth females with huge epinotal 

 spines. These aberrant females probably establish their colonies 

 in nests of AphcBUOgaster fulva or some one of its varieties, in 

 the same way that Formica difUcilis var. consocians establishes 

 its colonies in nests of F. schaufussi var. incerta {vide infra). At 

 least tennesseensis is known to occur only in regions where fulva 

 is unusually abundant, and several mixed colonies of the two 

 species, containing queens of tennesseensis only, have been 

 recorded. When living in unmixed colonies it always nests in 

 rotten wood. 



Colebrook (W. M. W.). 



A. treatae Forel. 



The female and worker are easily recognized by the remark- 

 able lamella on the base of the antennal scape. 



Poquonock (H. L. V.), almost the northernmost locality in 

 which this species has been found. 



A. mariae Forel. 



A single winged female that had just descended from her 

 nuptial flight was taken 8 September, 1901. 

 Colebrook (W. M. W.). 



A. fulva Roger. 



Nesting in rotten wood in rather dense forests; rarer than 

 the following subspecies and variety. 



Connecticut (Mayr); Colebrook (W. M. W.). 



A. fulva aquia (Buckley) Emery. 



Under stones in shady woods, often in the same stations as 

 the following variety. 



Branford (H. L. V., H. W. W.) ; New Haven (H. L. V.) ; 

 Colebrook (W. M. W.). 



A. fulva aquia var. picea Emery. 



Apparently common throughout the State. The males and 

 winged females appear during July and August. 



Connecticut (Emery) ; Colebrook (W. M. W.). 



