Miastor ? americana Felt 



1 Small, yellowish mother larva containing an embryo extending from the 

 fourth to the eleventh body segments and illustrating an early stage in the 

 development of the mesoderm and adipose tissue, x 75 



2 Small, somewhat shrunken, yellowish mother larva containing a nearly fully 

 developed embryo, the fuscous anterior portion of the head and the black 

 ocular spot showing distinctly in her posterior (lower) body segments, x 75 



3 Portion of a large, white mother larva packed with numerous embryos. 

 The two conspicuous black spots near the middle of lighter areas represent 

 well developed ocular spots of embryos nearly ready to escape. This mother 

 larva contained about 10 such embryos, the heads of three at least, being 

 included in the portion illustrated, x 200 



172 



