COMPARATIVE VARIABILITY IN THE HONEY BEE. 



2 9 



this widened wing, in some cases the width equalling the length/ 

 It may safely be stated, although no measurements were made 

 on this point, that the area of the back wing is more variable than 

 that of the fore wing. Since the number of hooks is correlated 

 with the length of the wing they do not, therefore, show as much 

 variation as would be found on the other parts of the hind wing. 

 The least range of variation in number of hooks in workers was 

 over seven points, the greatest, ten ; the least for drones, nine, 

 the greatest eighteen, or omitting one very abnormal wing with 

 but twelve hooks, twelve. The relative amounts of variation are 



FIG. 2. 



shown far more clearly here by examining the numbers of indi- 

 viduals in each case which have the same number of hooks. For 

 the workers the greatest number is 139 individuals which have 

 21 hooks while for drones the greatest number is 98 with 22 

 hooks, the average number for drones being a little higher than 

 for workers. In workers the descent in numbers of individuals 

 from 21 is far more sudden than that for drones, which is really 



TABLE VII. 

 HOOKS ON HIND WING. 



Drones. 



Workers. 



