CONTENTS. 



SECTION I. — SENSES OF INSECTS. 



Page 



Difficulty of the subject, 1 



Mistakes from hasty inferences, 2 



CHAPTER I. — Sense of Tocch. 



The organs of touch, 4 



The legs of spiders, ib. 



Spiders depend on other senses, 6 



The spinneret, an organ of touch, 6 



The claws, 7 



The cushioned feet of beetles and flies, 8 



The feelers {palpi) or antennules, 9 



Similar organs in birds and fish, ib. 



Opinions of Bonsdorf and Lehmann, 10 



The wings as organs of touch, 12 



Facts from the clouded butterfly, 13 



Similar facts from the bat, 14 



Origin of the proverb ' blind as a beetle, ' 15 



Sense of heat in insects, 16 



Spiders said to predict weather, 17 



Objections to this from facts, ib. 



Night appearance of spiders, 18 



Appearance of insects at certain hours, 20 

 Experiments of Decandolle, * ib. 



Influence of electricity, 21 



Opinion of Kirby objected to, 22 



CHAPTER II. — Taste in Insects. 



The organs of taste, 23 



Rigidity of the tongue does not disprove taste, ib. 



Delicacy of taste in some insects, 24 



Instanced in the midge and in the breeze-fly, 26 



In the harvest-bug, 27 



In a parasite mite, 28 



Parasites leave an animal previous to death, 29 



