438 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
workers with the upper surface of the head and a spot on the pro- and 
mesonotum fuscous. Gaster black, anal region, and often also in 
large individuals, the base of the first segment, dull reddish. 
Described from numerous workers from Chung-King, Western 
China, (Amer. Mus. Nat. Hist. Coll.). 
This variety is evidently very close to yessensis Forel, but the 
antennal scapes are very smooth and without any traces of oblique 
hairs, the color is very deep and the distribution of the hairs is 
peculiar, especially their absence on the whole upper surface of the 
head and clypeus and their nearly complete absence on the convex 
portions of the pro- and mesonotum. 
34. F. TRUNCICOLA DUSMETI Emery. 
F. rufa dusmeti Emery, Deutsch. ent. zeitschr., 1909, p. 188, 8 ; Forel, Rev. . 
Suisse Zool., 1911, 19, p. 457, 458. 
WorkeER. Resembling the typical truncicola in its light red colora- 
tion; head and thorax red, without spots or with a blackish spot on 
the front; gaster quite opaque, black, with red basal spot; antennae 
and legs brown, scapes and femora red. Head and thorax entirely 
without erect hairs; eyes hairless; gaster covered with rather abun- 
dant short hairs. 
This subspecies, based on three specimens collected by Dusmet 
at Pefialosa, in Spain, has recently been taken in Norway by Forel. 
According to Emery, it is very similar to the North American F. 
truncicola integra Ny]. 
35. EF. TRUNCICOLA INTEGROIDES Emery. 
F. rufa subsp. obscuriventris Mayr. var. integroides Emery, Zool. jahrb. Syst., 
1893, 7, p.649, 2, Wheeler, Ants, 1910, p. 570. 
WorKeER. Length 3.5-8 mm. 
Body, including the mandibles and clypeus, opaque. Mandibles 
densely and sharply striate, with scattered punctures. Frontal 
area smooth, only slightly shining. Clypeus sharply carinate. Thorax 
and petiole much as in the typical truncicola, but base of epinotum 
somewhat more convex. 
Pubescence yellowish, dense, distinct on the head and thorax, long 
and conspicuous on the gaster, sparse on the legs. Hairs golden yel- 
low, very sparse on the upper surface of the head, thorax, and petiole, 
