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EXPRANATION OF PRATES 



List of Abi'cviations 



a. alii;Iitini;- board of tlie Iiive. 



A. hair baiui of 6tli segment. 



<-. constriction. 



J. projection. 



/•. marking. 



/. lobed projection. 



III. brown mass. 



o. prore. 



/. pneinnophyses : 



1 . principal horn. 



2. main brancli. 

 3,4. side branches. 



t]. ventral quadrangular region. 



r. cross striped ridges. 



I. prcximalmost ridge. 

 s. symmetrical chitinous plates or slight thickenings of penis wall. 



/. dorsal triangular region. 



7Ü. vertical wall of the hive. 



Plate I 



Fig. r. Indivickial of Japanese uorker bee, abdomen distended, from right 



side. ■ 2.5 



Fig. 2. Do., bearing a brownish markings on the 2nd segment, dorsal view. 



< 2.5 

 Fig- 3- Venation of hind wing, Japanese worker. >' 6.6 



Fig. 4. Do., Japanese queen. >' 6.6 



Fig. 5. Do., Japanese drone. ■' 6-6 



Fig. 6. Do., Japanese bee fanning at the entrance of a hive. 

 Fig. 7- Hind leg, Japanese drone. :< 5 



Fig. 8. Do, Dutch drone. ■' 5 



