WHEELER: ANTS OF THE GENUS FORMICA. 407 
slightly more yellowish than in the European type; the head not 
darker than the thorax; mandibles but little darker than the head. 
Gaster black. 
FreMaLe. Length 7-9 mm. 
Very similar to the worker in sculpture, pilosity, and color. Space 
between frontal carinae and sometimes also the clypeus infuscated; 
mesonotum usually immaculate; antennae and tibiae brownish; 
wings infuscated at the base, in some specimens more strongly than in 
the European type. 
Mate. Length 7-9 mm. 
Mandibles broad, dentate; clypeus carinate, convex, its anterior 
border feebly emarginate. Closely resembling the European type 
in color and pilosity, but the gaster is more shining, owing to its some- 
what sparser pubescence. Petiole much thicker and with a blunt 
border, which is more faintly excised or sometimes even entire and 
transverse. Antennae black throughout, mandibles reddish only at 
their tips, which are dentate as in the type. Legs in mature specimens 
sordid yellow, with the femora more or less infuscated basally. Geni- 
talia yellow, the appendages infuscated at their tips. Wings as in 
the female. 
Hosts (Staves). F. fusca var. subsericea; F. cinerea var neocinerea; 
F. neogagates; F. pallidefulva schaufussi and var. fuscata. 
TYPE LOCALITY.— Pennsylvania (Emery). 
New Jersey: Milltown (W. T. Davis); Delaware Water Gap 
(H. L. Viereck); Woodbury (Phila. Acad. Coll.); Newfoundland 
(Wheeler). 
North Carolina: Black Mts. and Panther Gap, Blue Ridge (W. 
Beutenmiiller). 
Massachusetts: Ellisville, Woods Hole, Blue Hills (Wheeler); 
Springfield, Holyoke (G. B. King). 
Connecticut: Colebrook (Wheeler). 
Michigan: Marquette (M. Downing). 
Ilhnois: Rockford (Wheeler). 
Colorado: Prospect Lake, Colorado Springs (Wheeler). 
Montana: Helena (W. M. Mann). 
Ontario: Guelph (W. H. Wright). 
This subspecies, which is not as common as the subspecies sub- 
integra or even subnuda, varies considerably in different colonies 
in the color and character of the pilosity. Thus in my workers from 
the Black Mountains of North Carolina the hairs on the gaster are 
gray, very slender, and pointed, whereas in specimens from most other 
localities they are brilliant golden yellow. Emery cites a single 
