374 



EMBRYOLOGY OF INSECTS AND MYItlAPODS 



Fig. 329. — A-C, Calliphora vomitoria. D, Lucilia caesar. Section A taken at level of 

 X in B. Section C at level of z. Section D at level of q. (ect) Ectoderm, (ent) Entoderm. 

 (/r) Oblique head furrow, (gc) Germ cells, (mes) Mesoderm, (yc) Yolk cell. Sections 

 A and B of Fig. 335 are taken at the levels of k and u. 



