vn] PUPAE AND THEIR MODIFICATIONS 85 

 abdominal segments, of which a greater number 



Fig. 23. Pupa of White Butterfly (Pieris), 

 side view ; /, feeler ; iv, wing ; sp, 

 spiracle; p, anal pro-leg; cr, cremas- 

 ter. Magnified 8 times. In part after 

 Hatchett-Jackson, Trans. Linn. Soc. 

 1900, and Tutt's British Butterflies. 



