II 



LIFE-HISTORY OF BOMBUS 



4i 



to a great height, towering above the brood, and 

 contain an immense accumulation of pollen. But 

 the carder-bees, and three or four underground 

 species related to them, build little pouches or 

 pockets of wax on to the sides of the wax-covered 

 bunches of larvae to receive the pollen, which, in 



Fig. 13. Photograph of a comb of B. lucorutn, showing pollen-pots and 

 honey-pots. The four pollen-pots rose \ in. above the rest of the comb, and 

 each of them was about i in. high, and \ in. in diameter. The diameter 

 of the comb was 4^ in. 



their case, is gathered in comparatively small 

 quantities. Upon this difference in instinct I 

 have grounded a division of the species, calling 

 those that store the pollen in cells detached from 

 the bunches of larvae " pollen-storers," and those that 

 place it in receptacles formed in the sides of the 

 bunches of larvae " pocket-makers." 1 



1 Entomologist's Monthly Magazine for the year 1899, p. 230. 



