540 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Body shining, very finely reticulate-striolate or shagreened and 
very sparsely and finely punctate. Mandibles finely striate. 
Pubescence scarcely visible, extremely short and sparse; hairs erect, 
rather abundant, white and delicate; gula with long hairs. Legs 
with somewhat oblique, sparse pubescence. Anterior surface of 
antennal scapes covered with numerous short, erect hairs. 
Yellowish brown; antennae and legs paler; gaster and posterodorsal 
portion of head darker brown. 
TYPE LOCALITY.— South Dakota: Hill City (Th. Pergande). 
Colorado: Manitou (Wheeler). 
Massachusetts: Wellesley (A. P. Morse); Amherst (Amherst 
College Coll.). 
Professor Emery has very generously given me one of the three 
cotypes of this ant, which he described in 1893 as a distinct species. 
This specimen agrees well with the material from Massachusetts 
except that the latter is somewhat darker in color. As Professor 
Emery has also sent me cotypes of his lasioides var. picea (vetula) 
and his neogagates, I am able, with the aid of the large amount of 
material in my collection, to form a definite opinion on the status of 
these various forms and their relations to one another. Both the 
typical lasioides and its var. picea were based on small workers and 
this evidently led Emery to regard them as representatives of a dis- 
tinct species. Long series of specimens, however, collected from many 
localities, show that they differ from the typical neogagates and its 
var. morbida merely in having erect hairs on the antennal scapes. 
The differences mentioned by Emery in the length of the scapes and 
tibiae are, in my opinion, slight and inconstant. 
121. F. (P.) NEOGAGATES LASIOIDES var. VETULA Wheeler. 
F. lasioides var. picea Emery, Zool. jahrb. Syst., 1895, 8, p. 335, 8 ; Wheeler, 
Ants, 1910, p. 571. 
F.. fusca subpolita var. picea Wheeler, Occas. papers Bost. soc. nat. hist., 1906, 
1, mo. 7, pevks 
F. lasioides var. vetula, nom. nov. Wheeler, Psyche, 1912, 19, p. 90. 
WorkKER. Length 2.5-5.5 mm. 
Resembling the worker of the typical neogagates in size, color (even 
to the variations of color), sculpture and pilosity, and differing only 
in having delicate, short, erect, white hairs on the anterior surface 
of the antennal scapes as in the typical lasvozdes. 
FEMALE. Length 6-8 mm. 
