No. 2.] HABITS OF PONERA AND STIGMATOMMA. 47 



It is undoubtedly far more common in this country than in 

 Europe. In July I found numerous nests at Rockford, 111., 

 both under the bark of old logs and under stones along the 

 streets of the town. 

 It is not uncommon 

 in similar locations 

 at Woods H o 1 1, 

 Mass., and very 

 abundant under 

 stones on the slopes 

 of Mt. Pisgeh (alti- 

 tude 1450 feet), at 

 Colebrook, Litchfield 

 County, Connecticut. 1 



1 This last locality, to- 

 gether with the slope of a 

 small neighboring hill, is a 

 rich collecting ground for 

 ants. I give here the com- 

 plete list of the forms 

 taken there during August, 

 as it probably embraces 

 nearly all the species of 

 Formicidae that occur in 

 New England : Brachy- 

 myrm ex He eri F o r e 1 . 

 subsp. depilis 

 Emery ; Lasi.us 

 niger L. ; L. fla- 

 1'iis L. ; L. umbra- 

 tits Nyl., subsp. 

 mixtits, \zx.aphi- 

 dicola Walsh; 

 L. latipfs Walsh ; 

 Formica sangid- 

 nca Latr., subsp. 

 rubicunda Em. ; 

 F. cxsectoides 

 Forel, var. opaci- 

 ventris Em. ; F. 



pallide-fulva Latr., subsp. Schaufussi Mayr ; F. pallide-fulva, subsp. nitidiventris 

 Em.; F. ftisca L., var. subsericea Say; F. fusca, var. subaenescens Em.; F. fusca, 

 subsp. subpolita Mayr, var. neogagates Em. ; Camponotus kerculeanus, subsp. ligni- 

 perdns Latr., var. novaeboracensis Fitch (= pictus Forel); C. Jierculeanus, subsp. 

 pennsylvanicus de Geer; Stigmatomma pallipes Hald. ; Ponera coarctata Latr., 



FIG. 2. Ponera coarctata Latr., subsp . fennsylvanica 

 Buckl. Virgin female. 



FIG. 3. Ponera coarctata Buckl., subsp. fennsylvanica Buckl. Worker. 



