1927 ] Nesting Habits of Some New England Bumble-Bees 125 
were made of wool, one containing 5 queens, 1 male, and 9 work- 
ers, and the other 8 queens and 33 workers. I was fortunate 
enough to discover two nests of this rather rare New England 
species during the summer of 1925. One of these was taken on 
July 3, under a large root near the base of a tree, the nest being 
about a foot below the surface of the ground, with a tunnel 2 ft. 
long. In it were found 22 workers, 1 male, and some brood, 
from which additional males hatched later. The second nest 
was taken on July 23. It was situated 6 inches below the sur- 
face, and, like the first, had a tunnel about 2 ft. long. It con- 
tained 9 young queens, two of which had recently died, 1 dead 
male and 357 empty cocoons, showing that this must have been 
a prosperous colony earlier in the year. 
II. Bremus ternarius Say. 
Very little is known concerning the nesting habits of this 
species. In 1863 Putnam (1864) took a nest at Bridport, Vt., 
which was situated either under an old stump or under the clap- 
boards of a house. 
Early in September, 1923, Professor C. T. Brues called my 
attention to the fact that a nest of Bremus ternarius had been dis- 
covered on his summer estate near Petersham, Mass. Through 
the kindness of Professor and Mrs. Brues it was possible for me 
— after much digging — to secure the nest of this handsome but 
vicious species on September 15. The nest was situated among 
some trees near a red clover field, and was about 2 ft. below the 
surface of the ground, with a tunnel 6 ft. long. This colony 
consisted of 23 young queens, 16 males, over 100 workers, and a 
large quantity of brood, with more than 75 young queens still in 
their cocoons. The colony was transferred to the Bussey grounds 
where it prospered for over a month. Probably as a result of 
this transfer, Bremus ternarius, which is rarely found in the 
vicinity of Boston, was fairly common in the Arnold Arboretum 
in 1924 and 1925 from early April to October. 
Featernus Group. 
I. Bremus separatus Cresson. 
The only thing known concerning the nesting habits of this 
species is Putnam’s (1864) statement that Bremus separatus 
