LIST OF ILLUSTRATIONS 



PAGE 



SEXMACULATUS IN THE LINDEN ROOTS . .99 

 CRABRO AND HER WHITE MOTHS . . . .103 



CRABRO STIRPICOLA 106 



BOTTLE ON STEM TO MEASURE WORK OF CRABRO . 107 



NEST OF C. STIRPICOLA 113 



AMMOPHILA SLEEPING IN THE GRASS (AFTER 



BANKS) . . . . . . . .115 



NEST OF BEMBEX 125 



BEMBEX SPINOL^; LOOKING OUT OF NEST . -131 



BEMBEX 136 



A CORNER OF THE BEMBEX COLONY . . .137 

 NEST OF CERCERIS NIGRESCENS . . . . 142 

 CERCERIS CLYPEATA . . . .. ~. .143 

 CERCERIS DESERTA : LOCALITY STUDY BEFORE LEAV- 

 ING NEST 153 



PHILANTHUS PUNCTATUS . . . . .157 

 NEST OF PHILANTHUS PUNCTATUS . . . 163 

 APHILANTHOPS GATHERING ANTS . . . .169 

 TRYPOXYLON RUBROCINCTUM . . . . 185 

 MALE TRYPOXYLON AWAITING THE FEMALE . .191 

 TORNADO WASP (POMPILUS QUINQUENOTATUS) DIG- 

 GING NEST . . . . . 197 

 POMPILUS QUINQUENOTATUS . . . . . 199 

 EPEIRA STRIX PARALYZED AND HUNG UP ON BEAN 

 PLANT BY POMPILUS QUINQUENOTATUS, OUT OF 



THE WAY OF ANTS 203 



NEST OF P. QUINQUENOTATUS . . .213 



POMPILUS MARGINATUS 223 



