Xll 



LIST OF ILLUSTRATIONS 



PLATE 



XXXVII. 



XXXVIII. 



XXXIX. 



XL. 



XLI. 

 XLII. 



XLIII. 



XLIV. 



XLV. 

 XLVI. 



PACING PAGE 



Pitcher of a Nepenthes — House-fly destroyed by a Fungus 

 (Empusa musca) : greatly magnified — A " Vegetable Cater- 

 pillar" . 250 



Rose leaves mutilated by Leaf-cutting Bee — Female Leaf- 

 cutting Bee (Megachile willughbiella) with eleven pieces of 

 leaf which are used to form a single cell .... 270 



Social Caterpillars of Lackey Moth (Clisiacampa neustria) 

 basking in the sun outside their tent — Hanging nest of a 

 species of Termite 274 



Nest of Wasp (Vespa vulgaris); the unaided work of the 

 queen before the emergence of workers. (Natural size) — 

 Drone comb of Hive-bee {Apis mellifita) .... 285 



Imaginary section through a bank containing a Wasps' Nest . 290 



Nest of Wood-ant (Formica rufa) — Neet of a Carder Humble- 

 bee (Bombus muscorum), opened to show the cocoons . . 293 



Water-beetle (Dytiscus marginalis) in the act of taking breath 

 — Water-beetle (Dytiscus) compared with typical Ground- 

 beetle (Galosoma) 311 



Common May-fly (Ephemera vulgata) — Larva of Water-beetle 

 (Dytiscus marginalis) — Nymphal skin of a Dragon-fly 

 (JEschna) — Water Boatman (Notonecta glauca) — Water 

 Scorpion (Nepa cinerca) 317 



Wheat injured by Weevils (Calandra) : greatly magnified — 

 Normal wheat ear (to left) and (from left to right) ears 

 from plants attacked by the Ribbon-footed Corn-fly, the 

 Corn Saw-fly, the Hessian Fly, and the Wheat Midge . . 320 



Cigarettes damaged by Tobacco Beetle (Lasioderma testacea) 

 — Apple damaged by Codlin Moth (Carpocapsa pomonella) 

 — Silkworm Moth (Bombyx mori) laying eggs . , . 322 



