LIST OF ILLUSTRATIONS 



XI 



PLATE 



XXV. 



XXVI. 



XXVII. 



XX VIII. 



XXIX. 



XXX. 



XXXI. 



XXXII. 



XXXIII 



XXXIV, 



XXXV, 



XXXVI 



FACING 



Caterpillar of Lobster Moth (Stauropus fagi)— Caterpillar of 

 Large Elephant Hawk-moth (Chcerocampa elpenor) in its 

 "terrifying attitude" ........ 



Caterpillars of Swallow-tail Buttertly (Papilio machaori) — Cater- 

 pillar of Privet Hawk-moth (Sphinx ligustri) in resting atti- 

 tude — Caterpillar of Swallow-tail Buttertly, showing Y-shaped 

 tentacle behind the head — A typical Mantid .... 



Felted Beech Coccus (Cryptococcus fagi) on trunk of Beech- 

 Mussel Scale Insect (Mytilaspis pomorttm) on stems of Haw- 

 thorn 



Sexton or Burying Beetles (Necrophorus) at work upon the car- 

 case of a Dormouse — Ammophila sabulosa : much magnified — 

 Pit of Ant-lion (Myrmeleon formicarium) natural size 



Marble Galls, on Oak, caused by the Gall-wasp Cynips kollari. 

 (Inset) The insect, greatly magnified— Horse-bean Galls, on 

 leaves of Crack Willow, caused by the Saw-fly (Nemahts 

 gallicola) .......••■• 



" Bedeguar " Gall, on Wild Rose, caused by Bhodites rosce. 

 Britain. (Coloured) 



Galls on Wild Rose leaf caused by Bhodites nervosus — Galls on 

 Wild Rose leaf caused by Bhodites eglanterice .... 



Spangle Galls (Neuroterus lenticularis) on underside of Oak 

 leaf — Currant Galls (Spathegaster baccarum) on catkins of 

 Oak 



Acacia sphatrocepliala : an Ant plant: showing "Belt's budieti" 

 on tips of two leaflets (to left), and glands at base of leaf stalk 

 (to right) — Acacia sphcerocephala : hollow thorns which are 

 penetrated by Ants — Pseudomyrma bicolor ; an Ant which is 

 associated with Acacia sphosrocephala (greatly magnified) . 



Blue Salvia (Salvia patens) : Flower in first or pollen-shedding 

 stage (to left), the connectives made to descend by means of a 

 straw inserted into the corolla tube. Flower in later stage 

 (to right) with lengthened style — Flower of Violet, showing 

 "honey guides" on lower petals (magnified) — Flower of 

 White Dead-Nettie, from side, showing lip and hood (magni- 

 fied) — Flower of Indian Nasturtium (Tropozolum) : side view 

 (to left) showing spur, and front view (to right) 



Convolvulus Hawk-moth (Sphinx convolvidi) with proboscis ex- 

 tended — Inflorescences of Wild Arum (Arum maculatum) in 

 three successive stages. (Inset) Pollen grains on wing of 

 Midge (Psychoda phalo'noides) : greatly magnified . 



The Venus's Fly-trap (Dionasa muscipula) — Fly caught by leaf 

 of Sundew (Drosera) : greatly magnified . 



P.VOE 



162 



167 



163 

 180 



199 

 201 



202 



203 



206 



224 



232 



249 



