CONTENTS 



INTRODUCTION. By W. M. WHEELER 



CHAPTER I 



Some Bembicine Wasps 9 



Bembix mibilipennis 

 Bembix spinolae 

 Microbembix monodonta 

 Bicyrtes quadrifasciata 

 Sphecius speciosus 



CHAPTER II 



Behavior of Wasps Belonging to the Family Pompilidae 45 

 Pompil aides tropicus 

 Pompiloides marginatus 

 Psammo chares scelestus 

 Pepsis dubitata 

 Priocnemis pompilus 

 Arachnophoctonus ferrugineus 

 Pseudagenia architecta 

 Pseudagenia pulchripennis 

 Pseudagenia mellipes 



CHAPTER III 

 Some Fly-catching Wasps 90 



Hypocrabro stir pic olus 

 Hypocrabro chrysarginus 

 Parana thy reus cingulatis 



IX 



