CHAPTER XIV. 



QUEEN ORGANS AND DEVELOPMENT. 



Parallelisms between Queen and Drone — Both Domes- 

 tically Helpless — Ovaries and Oviducts — Homologies 

 — Spermatheca : Microscopic Examination of — 

 Leidy's and Leuckart's Observations — Movements of 

 Spermatozoa — Parthenogenesis : Curious Examples 

 of — When the Queen Mates— Exceptional Cases — 

 Drone-breeding Queens — Drones have no Fathers — 

 Dzierzon' s Experience — Fertile Workers — Inevitable 

 Conclusion — Appendicular Gland : Its Homologue — 

 Spermathecal Valve : Its Muscular System — Name- 

 less Gland — Number of Spermatozoa — Old Queens 

 Breed Drones only — Number of Fertilisations 

 required — Wasps — Fertilising Pouch — Egg Struc- 

 ture — Micropyle : Uses of; and Origin — Ovaries 

 of Workers : Barren and Fertile — Siebold's Ex- 

 aminations — Oviduct: Structure of — Prolonged 

 Vitality of Spermatozoa — Results of Freezing 

 Queens — Paralysis producing Drone-breeders — 

 False Theories — Worker Egg a Misnomer — Develop- 

 ment of Larva — Queen Cocoon and Exuvium. 

 The surprising sexual development of the drone, 

 and his extreme domestic helplessness, are paralleled 



