VI 



CONTENTS. 



CHAPTER III. 



Maternal care of insects respecting their eggs . 



Instanced in a carpenter-bee (jChelustomd) 

 Ichneumons compared to the cuckoo . 

 Proceedings of a solitary bee (Halictus) , , 

 Stratagems of a solitary \Nasp (Cerceris) . . 



Ovipositor of an ichneumon (Fiinpla) . , 

 Experiments of Reaumur . . . . . 

 Common mistakes of Naturalists 

 Parasite of the cabbage-caterpillar {Pontia) . 

 Egg parasites .... ... 



Parasites of the aphides 



Singular parasite of the cockroach . . . 

 Rare parasites of bees and wasps . . . . 

 Tact of insects in discovering food for their young 

 Sometimes select exotic plants . . . . 

 Instanced in a leaf-miner (TepAnti's?) 

 Solitary and gregarious caterpillars 

 Life-boat of eggs constructed by the gnat . 

 Experiments upon it . . . • . . 

 Infallibility of instinct questioned . 

 Mistakes of instinct 



CHAPTER IV. 



Hybernation of insects' eggs 



Proceedings of the gypsey moth compared to the eider-duck 



Singular groups of eggs ... 



Protection of eggs from heat 



Anal tweezers of moths . 



Eggs in spiral groups .... 



Arched form of the lackey-moth's eggs 



Hybernation of the eggs of aphides 



Singular protection of the eggs of cocci 



Coccus of the hawthorn 



Shell-formed coccus of the currant . 



Hybernation of spiders' eggs 



Curious spiders' nests 



tlggs of the vapourer-moth on its cocoon 



Effects of cold on insects' eggs . 



Observations of John Hunter 



Insects not killed by severe frosts 



CHAPTER V. 

 Hatching of insect eggs .... 

 Structure of the eggs of birds 

 Insects do not hatch their eggs . 

 Anomalous instance of the earwig. 

 Earwigs cannot get into the brain 

 Partial hatcliing by spiders . 

 Experiments upon the wolf-spider by Swammerdam 



Bonnet ..... 

 Eggs hatched before they are laid 

 Ovo-viviparous insects . 

 Coil of larvaj in the body of a hlow-flv 

 Aphides sometimes produce eggs, sometimes yonn 

 Care taken of these eggs by ants 



and 



