iS93. NOTES ON LEPWOPTEROUS LARVM. 443 



have to do with a gradual contraction of borders into spot-marking. 

 The spots certainly increase in area while developing, and if we art- 

 to regard the occurrence of spots as a recapitulatory charncter this 

 fact would seem to support Professor W'eismann's theory. If, however, 

 they are reversionary, which now seems to me more probable, as they 

 do not occur in all the individuals of a species, the increase in area 

 would not have the same importance. The number of larvae reared 

 by me was, however, too limited to draw conclusions from safely, and 

 had I had more individuals under observation, some miglit have 

 presented different appearances. 



Lilian J. Gould. 



