On the Bionomics and Post-Embryonic Develop- 
ment of certain Cynipid Hyperparasites of 
Aphides. 
By 
Maud D. Haviland, 
Research Fellow of Newnham College. 
With 11 Text-figures. 
CONTENTS. 
INTRODUCTION 
MATERIAL . 
BrotoaicaL Nore ON THE Host 
PATRING 
OVIPOSITION 
Tue Kae 
THE EMBRYONIC WEtenia war 
THe First INSTAR 
THE SECOND INSTAR 
INTERMEDIATE STAGES 
THE FULL-GROWN LARVA 
PUPATION AND EMERGENCE . 
COMPARISON OF THE LARVAL coy ate OF TO hae 
THOSE OF OTHER HNTOMOPHAGOUS CYNTPIDAE . 
COMPARISON OF THE Larvat CHARACTERS OF Charips 
THOSE OF PaRaAstITIC HYMENOPTERA IN GENERAL 
REACTION OF THE Host 
Economic STATUS 
SUMMARY . 
BIBLIOGRAPHY : : : 
NO. 259 Hh 
WITH 
WITH 
