Page 67 - The Miracle of the Honeybee
P. 67

THE DIFFERENCES AMONG HONEYBEES


         Characteristic                  Worker           Queen             Drone
         Sensory
         Number of facets of compound eyes   4000 to 6900  3000 to 4000     7000 to 8600
         Optic lobe of brain             Medium           Small             Large
         Number of antennal plate organs  3000            1600              30000
         Relative ratio of antennal surface  2            1                 3

         Glandular
         Hypopharyngeal                  Present          Absent            Absent
         Mandibular                      Large            Very large        Small
         Head salivary (labial)          Large            Large             Absent
         Wax glands                      Present          Absent            Absent
         Nasonov (concerned with direction  Present       Absent            Absent
         finding)
         Dufour (concerned with defense)  Reduced         Large             Absent
         Koshevnikov (scent-secreting gland)  Reduced or absent Present     Absent


         Reproductive and sting
         Ovary or testis                 Reduced ovaries  Enlarged ovaries  Testis
         Number of ovarioles             2 to 12          150 to 180        None
         Spermatheca                     Not developed    Large             None
         Sting barbs                     Strong           Minute            No sting
         Sting plates                    Loosely attached  Strongly attached  None

         Mouthpart
         Mandibles                       Slender          Robust            Small
         Mandibular groove               Present          Absent            Absent
         Proboscis                       Long             Short             Short


         Leg and wing
         Pollen press and comb           Present          Absent            Absent
         Pollen basket                   Present          Absent            Absent
         Wing sensilla                   Medium           Fewest            Most




          Reference: Mark L. Winston, The Biology of the Honey Bee, p. 40
   62   63   64   65   66   67   68   69   70   71   72