LIST OF ILLUSTRATIONS 



FACING PAGE 



^Eschnid dragon-fly preying upon a house fly Frontispiece- _ 



A centipede greatly enlarged 21 



Grasshoppers fighting 21 



Staphylinid beetle preying upon a fly 22 



An assassin bug laying her eggs 24 



A handful of vegetation at close range 26 



A photograph made under asparagus plants 26 



Plough furrows are as mountain ranges to the insects ". 31 



A greatly enlarged hemipterous insect 31 



Male black reed-wasp guarding nesting tube 33 



Female black reed-wasp arriving at the tube 33 



Glass tube removed from box, showing plugs, egg and spiders .... 33 



Old nest of wasp used by the black reed-wasp 33 



Stages in the larval sacrifice 35 



Newly transformed pupa of the roach-killer 35-" 



Spider used as provender by the white-footed wasp 40 



Cocoon of white-footed wasp 40 



Tangle of reeds and razor grass in British Guiana 40 



Two common bugs which do great damage to squash vines 49 



Open nest of the forest shell-wasp 56 



Open nest and larva of the forest shell-wasp 56 



Newly emerged one-banded dauber 65 



Suspended hatching egg of the forest shell-wasp 65 



One-banded dauber working upon her nest 65 



Four types of nests made by the one-banded dauber 65 



Spider prey and egg of the blue huntress 68 



Pupa of the blue huntress showing T-shaped jacks 68 



A queen paper wasp at her nest 72 



A cabbage butterfly depositing an egg following 76 



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