WHEELER: ANTS OF THE GENUS FORMICA. 561 
mesonotum, the whole of the scutellum and metanotum, a few spots 
on the mesopleurae and the middle and hind legs, including their 
coxae, black. 
Described from two females and seven workers collected by Mr. 
W. M. Mann at Elkhorn, Montana. He has also taken six workers 
at Helena in the same state. The two females are immature so that 
the red of the head and thorax is paler and more yellowish than in the 
workers. The opacity of the body and the character of the pubescence 
on the gaster in both female and worker show clearly that this variety 
is to be referred to the subspecies integroides Emery and not to integra 
Nylander. 
141. F. SUBPOLITA var. FICTICIA, var. nov. 
WorkKER. Length 3-6 mm. 
Very closely resembling the typical form from California but differ- 
ing in having the head less deeply and less extensively infuscated 
behind, the thorax bright red and rarely infuscated even in the small 
workers, the erect hairs, especially on the pronotum and gula, less 
numerous, the petiolar border sharper and more compressed, and the 
antennal scapes a little less enlarged towards their tips. 
FEMALE. Length 8.5 mm. 
Differing from the female of the typical form in having the clypeus, 
cheeks, and pleurae red, the mesonotum less shining and the wings 
somewhat shorter and more nearly colorless. 
Mae. Length 7.5-8 mm. 
Differing from the male of the typical form in color, the gaster being 
black, instead of reddish yellow, with the genital appendages more or 
less infuscated or black. The stipes of the genitalia are broad and 
blunt, the subgenital plate broad, the gaster compressed dorsoventrally 
The head is shaped as in the typical form, the wings paler. 
Described from one female, five males, and twelve workers taken 
by Mr. W. M. Mann at Helena, Montana. He has also given me eight 
workers from Elkhorn in the same state. It is interesting to find this 
form so far inland from the Pacific Coast. The discovery of the male 
is somewhat disconcerting, since it would seem to indicate that after all 
F. rufiwentris Emery may not be, as I have stated, the male of the typi- 
cal subpolita Mayr, but the male ficticia agrees so closely with the 
form described by Emery, except in the color of the gaster, that I am 
not ready to admit myself mistaken, especially as the females of the 
typical subpolita vary from black to yellowish red in the color of the 
gaster. 
