THE OLFACTORY SENSE OF THE HONEY BEE^ 



N. E. McINDOO 

 Bureau of Entomology, Washington, D. C. 



TWENTY-FOUR FIGURES 



CONTENTS 



Introduction 266 



Material and methods 267 



Experiments on bees in an observation hive 269 



Experiments on normal bees in observation cases 271 



Workers 272 



Queens 274 



Drones 275 



Effects of clipping wings 276 



Effects of light on longevity 277 



Longevity of isolated bees 278 



Longevity of bees with stings extracted 278 



Effects of weather 279 



Causes of mortality in observation cases 279 



Olfactory experiments 280 



Workers 282 



Queens 285 



Drones 286 



Summary 288 



Experiments on mutilated bees in observation cases 289 



Antennae ■^ 289 



Maxillae and labial palpi 297 



Proboscis 297 



Mandibles 298 



Buccal cavity 298 



Morphology of olfactory pores 299 



Disposition 299 



Variation 311 



Wings of workers 311 



Legs of workers 311 



Stings of workers 313 



Wings of queens 313 



Legs of queens 313 



Stings of queens 314 



Wings of drones 314 



Legs of drones • 315 



Summary 316 



' The second part of this paper, which is a complete discussion of the literature 

 pertaining to the sense of smell in insects, must be omitted on account of its 

 length. 



265 



THE JOURNAL OF EXPERIMENTAL ZOOLOGY, VOL. 16, NO. 3 

 APRIL, 1914 



