402 Bulletin American Museum of Natural History. [Vol. XXI 



permanently parasitic on fragments of schaufussi colonies which they 

 bring together with great skill. The sexual forms make their appear- 

 ance during August. 



Camponotus Mayr. 



86. C. castaneus Latreille. — Caldwell (Cresson) ; Sea Isle City 

 (Viereck) ; Fort Lee (Beutenmueller) ; Great Notch (Wheeler). 



This species nests in the ground, under stones or logs, or in ob- 

 scure mound-nests, like the typical species of the Cam.ponotus macu- 

 latus group. It is common neither in New Jersey nor New York 

 State. The latter probably represents the northernmost range of the 

 typical form of the species. 



87. C. castaneus americanus Mayr. — Manumuskin, lona, and 

 Da Costa (Daecke) ; Jamesburg and Paterson (Davis) ; Halifax and 

 Lakehurst (Wheeler). 



Similar in habits to the typical form but apparently more widely 

 distributed and ranging as far north as Massachusetts. The colonies 

 I have seen have all been of small size. The young larvae are salmon- 

 colored, like those of Tapinoma sessile. 



88. C. herculeanus pennsylvanicus De Geer. — Caldwell (Cresson) ; 

 Riverton (Viereck); Medfprd (Phila. Acad.); .Westville (Phila. 

 Acad.) ; North Woodbury (Daecke) ; Newfoundland (Davis) ; Hali- 

 fax (Wheeler) ; Fort Lee (Wheeler) . 



This is the common, entirely black form of the "carpenter ant." 

 It nests usually in shady woods in old logs and stumps. Thence it 

 migrates into old farmhouses and suburban residences and becomes a 

 pest both by riddling the woodwork with its large anastomosing 

 galleries and by visiting the pantries and kitchens for sweets. 



89. C. herculeanus pennsylvanicus var. ferrugineus Fabricius. — 

 Delair (Daecke) ; Camden (Viereck) ; Boonton (Viereck) ; Westville 

 (Phila. Acad.); Fort Lee (Coll. Am. Mus.). 



A beautiful color variety of pennsylvanicus confined, apparently, 

 to the States east of the Mississippi River. Its habits are very 

 similar to those of the typical form, but it seems to be much less 

 abundant. 



90. C. herculeanus ligniperdus Latreille var. pictus Forel. — Al- 

 though I have seen no specimens of this variety from New Jersey, 

 there can be little doubt that it occurs in the State, as it has been 

 found in Pennsylvania, New York State, and Connecticut. 



91. C. marginatus Latr. var. nearcticus Emery. — Boonton 

 (Viereck); Lakehurst (Davis and Wheeler). 



