GENUS BOMBUS, Latreille. 
I have divided the British Gomdz into two main 
sections, the Pollen-storers, consisting of eight 
species’ which store the pollen in cells detached 
from the clusters of larve, and the Pocket-makers, 
consisting of nine species which place the pollen in 
cells attached to the clusters of larve; and I have 
subdivided the Pocket-makers into the Pollen- 
primers, comprising four large long-tongued species 
that lay their eggs in cells primed with pollen and 
dwell under the ground, and the Carder-bees, com- 
prising five small species that dwell, as a rule, on the 
surface of the ground, lay shorter and rounder eggs 
than the other species, and, in the male, have the 
joints of the antennz swollen behind. 
For the characters distinguishing Lomdus from 
Psithyrus see p. 203. 
1 Two of these, B. soroénsis and B. cullumanus, the nests of which I have 
not yet found, are included because in structure they show most affinity with 
the pollen-storers. 
ag. y : 
