THE INSECT WORLD. 



73 



Fig. 39. 



The " hellgrammite" or " dobson" 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 to j. 



