38 



Miss Haviland, Preliminary Note on Antennal 



Table 1. Curves showing the ratio of the distance of the sensoria 

 from the articulation of antennal Segments V and VI to the 

 width of head. The lower curves refer to the fifth, and the upper 

 to the sixth segment. 



— B2 generation 



= E^Gi 



Table 2. Mean ratios of the successive generations of the lines^ 



Cto 



i?3 ..., JR/jG^ ..., Hcfii ..., and R2GQR1 



J 



