THE INSECT WORLD. 

 Fig. 39. 



73 



The " hellgrammite" or " dobsoii" in all its stages. — Upper series : a, the larva ; b, the 

 »pupa ; c, the male adult ; d, the head of the female : in the lower series the leaf bears 

 egg masses at aa, enlarged at be ; d, the larva just hatched, with details from e Xaj. 



