280 
Cullum’s Humble-bee, 171 
cylinders, tin-plate, for protecting nests, 
129 
Darwin, C., on cats, mice, and humble- 
bees, 118 
on fertilisation of Viola tricolor, 7 
derhamellus, Bombus, 14, 43, 56, 74, 
150, 189 
desertion of brood, 102, 120, 122, 131, 
132, 235 
dimorphism in Boméus ruderatus, 176 
in Psithyrus campestris, 217 
distinctus, Psithyrus, 69, 151, 210 
distinguendus, Bombus, 13, 43, 149, 
150, 187, 223, 275 
distribution of humble-bees, 4 
domestication of humble-bees, 102, 225 
complete, 139 
domiciles, artificial, ro4 
when to open, r21 
duels between Bomébus queens, 55 
between Boméus and Psithyrus, 67 
dwarfed specimens, 37, 125, 134, 149 
Early-nesting Humble-bee, 165 
earwigs, 16, 227 
Eaton, Rev. A. E., 14 
Edison, T. A., on flight, 234 
eggs, eating, 51, 70, 244, 258, 275 
excitement at laying of, 51, 245, 
_ 253) 255, 276 
first, 19, 273 
how laid, 19, 35, 246, 248, 273, 276 
male and queen, 51 
of humble-bee, 25 
of Psithyrus, 68 
of workers, 52, 255 
elegans, Bombus, see distinguendus 
elevations on sixth ventral segment of 
Psithyrus queens, 203, 204 
their function suggested, 253 
emergence of bee from cocoon, 31 
enemies of the humble-bee, 6, 73, 115 
excipula, 24 
eyes, 145, 267 
fading of specimens, 148, 223 
Fannia, 77 
feeding colonies, 124, 231 
queens, 103, 140, 228, 259 
fertilisation of flowers by humble-bees, 
7 
of queens, 12 
field-mice, 81, 118 
fighting between queens, see duelling 
between workers, 241, 251, 255 
first batch of brood, 19, 29, 33, 185, 
190 
flagellum, 144 

THE HUMBLE-SEE 
flowers, artificial, r40 
damaged by humble-bees, 8 
fertilised by humble-bees, 7 
frequented by humble-bees, 7, 8, 
156, 159, 163, 164, 166, 168, 
178, 181, 186, 190, 192, 223 
food for humble-bees, 124 
fowls, domestic, 81 
fragrance of Bombus males, 13 
of Psithyrus males, 72 
generations, signs of two in a season, 
166, 180 
giant males of Psithyrus, 149 
globosus, Psithyrus, 219 
Great Yellow Humble-bee, 187 
hair of humble-bee, 24 
colouring of the, 147 
how brushed and cleaned, 20, 268 
loss of, 52 
qualities of in different species, 146 
Hamm, Mr. A. H., 177 
harrisellus, dimorphic variety of Bom- 
bus ruderatus, 174 
Heath Humble-bee, 167 
helferanus, Bombus, 36, 43, 68, 90, 
QI, 147, 148, 195, 223, 244 
hibernation in confinement, 141 
of Bombus queens, 14 
of Psithyrus, 72 
Hoffer, E., on Bombus, 25, 49, 81, 177 
on Psithyrus, 60, 68, 70 
holding humble-bees in the fingers, 
266 . 
homing instinct in Bomdz, 137 
honey, amount stored, 53, 98, 178 
from humble-bees, 6 
how collected and deposited, 46 
thin and thick, 27, 38 
where stored, 37 
honey-pot of queen, 25 
honey-pots, artificial, 125 
of workers, 38 
honey-sac, or honey-bag, 15, 28, 82 
hortorum, Bombus, 13, 14, 44, 45, 
70, 106, 109, 130, 149, 175, 176, 
179 
house for humble-bees, 94 
humble-bees, how distinguished, 143 
Ilfracombe Humble-bee, 162 
industry of humble-bee, 2, 27, 46, 47 
in cool and stormy weather, 263 
inquisitiveness of humble-bee, 244 
intelligence of humble-bee, 103, 139, 
233, 243, 262, 267, 268 
zvernicus, variety of Bombus hortorum, 
181 
