LIST OF ILLUSTRATIONS 



PAGE 



SEXMACULATUS IN THE LINDEN ROOTS . . gg 

 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^E 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 . . . . i6g 

 TRYPOXYLON RUBROCINCTUM . . . . 185 

 MALE TRYPOXYLON AWAITING THE FEMALE . . igi 

 TORNADO WASP (POMPILUS QUINQUENOTATUS) DIG- 

 GING NEST .... . ig7 

 POMPILUS QUINQUENOTATUS . ... igg 

 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 



