No. 417.] NESTS OF AMERICAN ANTS. 713 
17. Formica sanguinea Latr., subsp. rubicunda Emery, . 
var. subintegra Emery. 
This variety, originally found by Mr. Pergande in the Dis- 
trict of Columbia, has the same slave as the preceding, viz., 
F. subsericea. During July, 1900, I found a very large nest of 
this variety on Naushon Island, Mass. It contained the usual 
auxiliaries and was compounded with a large nest of Solenopsis 
molesta. | 
18. Formica sanguinea Latr., subsp. rubicunda Emery, 
var. subnuda Emery. 
This form was discovered by Mr. Dieck near Yale, D. C. 
Its auxiliaries are also furnished by F. subsericea. 
19. Formica sanguinea Latr., subsp. puberula Emery. 
This small form, which occurs in Colorado, is probably the 
one observed by McCook (82, pp. 152—153). Its auxiliaries, 
according to this observer, belong to F. schaufusst and to a 
small black species (probably one of the western varieties of 
F. fusca). 
20. Formica sanguinea Latr., subsp. obtusopilosa Emery. 
Emery described this subspecies from New Mexico. Its 
auxiliary is not recorded, but is probably furnished by some 
variety of F. fusca, like neorufibarbis Emery or neoclara 
Emery. 
21. Polyergus rufescens Latr., subsp. lucidus Mayr. 
P. lucidus, the “shining slave-maker ” of McCook, is the 
best known of the three American subspecies. It has been 
taken in several of the Atlantic States from Cape Cod to North 
Carolina and westward into Pennsylvania, but its exact geo- 
graphical distribution has not yet been determined. Rev. P. 
J. Schmitt has sent me specimens from New Jersey, Maryland, 
and North Carolina. The specimens from the last-mentioned 
locality are decidedly opaque, thus resembling the European 
