156 University of Micliigan 



PLATE XX 



Variation in Cerion uva aruhanum 

 Scale and anangemeut as in Plate XVIII. For extremes, see 

 Table XIV. 



Figs. Al-3, Bl-3, Cl-5, Dl-4, F2, 3, 6 from the colony at A2c. 



Fig. C3 is the tj-pe of the subspecies. 



Figs. A4, B4, 5, D5, 6, E4, 5, F3-5 from colony at A5a. 



