VUl 



CONTENTS. 



Page 

 F'inal cause of these bnmps . . 360 

 The Zimb (Breeze-fly ?) of Africa 361 

 Human Breeze fly .... 361 

 Grub Parasite in the Garden-Snail 361 

 Caterpillar'Parasite in the same 362 



MISCELLANIES. 



I. — On the ravages of Insects : — • 



Voracity of Caterpillars, Grubs, 



and ]\Iaggots 363 



Caterpillars 369 



Grubs 387 



Maggots 404 



II. — On the Collection and Preser- 

 vation of Insects for the pur- 

 poses of Study : — 



Breeding-cage 425 



Larvse-box . 



Pocket collecting-box 



Water-net 



Butterfly-net. 



Clap-net . . 



Ring-net. 



Net forceps . 



Digger 



Chip collecting- box 



Method of setting Insect 



Cabinet. 



Page 



429 



430 



430 



430 



431 



432 



432 



434 



, 435 



, 437 



. 438 



III. — Systematic Arrangements of 

 Insects : — 



The Wing System .... 440 

 The Locality System . . . 442 

 The Transformation System. . 444 

 The Cibarian, Maxillary, or 



Mouth System 446 



The Ovary, or Egg System . . 447 

 The Eclectic, or JModern System 448 

 The Quinary System .... 451 



