wheeler: ants of the genus formica. 445 



Host (Temporary). F. fusca var. subsericea. 



Maine: Lower Goose Island, Casco Bay (Wheeler); Monmouth 

 (Frost). 



New Hampshire: Littleton, Hannover (C. M. Weed); Durham 

 (W. F. Fiske); Mt. Moosilauke, 1,700 ft. (Wheeler). 



Massachusetts: Wellesley (A. P. Morse), Forest Hills (Wheeler); 

 W. Springfield (Geo. Dimmock). 



Connecticut: Colebrook (Wheeler). 



New York: High Bridge; West Farms (J. Angus); Ashokan, 

 Bergen Beach (G. v. Ivrochow); Mosholu, Bronxville (Wheeler); 

 Long Beach, Long Island. 



New Jersey: Jamesburg, Lakehurst (Wheeler); Clementon. 



Pennsylvania: Enola, Frankford, Lawndale; W'est Chester (J. C. 

 Bradley). 



North Carolina: Black Mts. (W. Beutenmiiller). 



Georgia: Atlanta, Stone Mt. (J. C. Bradley). 



Indiana: Camelton, and Wyandotte (W^ S. Blatchley). 



IHinois: Rockford (Wheeler). 



South Dakota; Hill City (Th. Pergande). 



Michigan: Isle Royale (H. A. Gleason). 



Alabama: Cullman (P. J. Schmitt). 



Nova Scotia: Bedford (W. Reiff); Digby (J. Russell). 



The specimens from northern localities like Nova Scotia, Isle Royale, 

 and Northern Illinois have the red parts darker and somewhat clouded 

 with fuscous and the pubescence on the gaster even sparser than in 

 the typical form so that this region is more shining, but with the mate- 

 rial on hand it hardly seems ad\isable to regard these as representing 

 a distinct variety. 



This ant, which occupies similar stations in the Eastern States to 

 those inhabited by intcgroidcs in the West, has also very similar habits, 

 living in huge colonies in rather rich, open woods in hilly regions. 

 The nests are built in stumps and logs and under stones, and re- 

 semble those of the European truncicola, but are on a larger scale. 

 A single colony often occupies a number of nests covering a consider- 

 able area. The winged forms make their appearance in August. 



39. F. truncicola obscuriventris Mayr. 



F. truncicola var. obscuriventris Mayr, Verb. Zool. hot. ver. Wien, 1870, 20, 

 p. 951, y ; Ibid., 18S6, 36, p. 426; Dalla Torre, Catalog. Hymen., 1893. 

 7, p. 214. 



