B. Pupal Cuticle from which the Imago is emerging. (The pair of
'respiratory trumpets' on the thorax of the pupa are conspicuous. The
wings of the Imago are crumpled, and the hind feet are not yet
withdrawn.)
C. Adult Gnat. Female.]



[Illustration]



THE LIFE-STORY

OF INSECTS



BY

GEO. H. CARPENTER

Professor of Zoology in the Royal
College of Science, Dublin

Cambridge:
at the University Press
New York:
G.P. Putnam's Sons
1913