CONTENTS 
VIII. Frower-crours (continued) : 
Nectar) .. ; ‘ : Pi ae 
Nectar-guides . : 
Protective Arrangements fir Hievers : 
Shelter : 
1. Pollen Flowers . 
Flowers with exposed Nadler 
. Flowers with concealed Nectar . 
Ao pw hv 
. Hymenopterid Flowers 
Bee Flowers proper . 
Humble-bee Flowers . 
Bee-humble-bee Flowers 
Wasp Flowers . 
Ichneumon Flowers . 
7. Lepidopterid Flowers 
Butterfly Flowers 
Moth Flowers 
8. Fly Flowers : 
A. Nauseous Flowers 
B. Pitfall Flowers 
C. Pinch-trap Flowers 
D. Deceptive Flowers 
E. Hover-fly Flowers 
g. Flowers pollinated by Small Insects 
IX. Insects THAT Visit FLowErRs 
A. 
ee) 
ae oo 
Membrane-winged Insects (Hymenoptera) 
. Butterflies and Moths (Lepidoptera) . 
. Flies or Two-winged Insects (Diptera) 
. Beetles (Coleoptera) 
Other Insects that visit Flowers 
Stages of Adaptation in Insects which visit Flowers 
X. Merruops oF REesEarcH In FLowEr PO.t.inaTION . 
. Flowers with partly concealed Nectar 
. Social Flowers with completely concealed Nectar 
Supplement to the Introduction 
1. Joseph Gottlieb K6lreuter 
2. How Flowers attract Insects 
BIBLioGRAPHY OF FLOWER PoLrinaTION 
List or ZooLtocicaL Works 
InpEx or ZooLocicaL Names IN THE List or ZooLocicat Works 
