X CONTENTS. 



Page 



Remarkable structure of its eyes, 370 



Battles of butterflies, 371 



Choral assemblies of ephemeridae, 873 



Account of these by Reaumur, ib. 



Sports of ants, ' 376 



Gymnastics of ants, according to Huber, 377 



CHAPTER XVr. 



Peculiar locomotions of insects, 379 



Examples from quadrupeds, ib. 



Singular movements of some plant-bugs, 380 



Sailing of the whirhvig beetle, 381 



Walking on water by spiders, &c, 382 



Walking through water by aquatic mites, 383 



Oblique pace of midges, 384 



Insect with its legs on its back, 385 



Rapid galloping of the strawberry mite, 386 



Slow movements of the oil-beetles, 387 



Supposed sponges in the foot of the fly, 388 

 Correct notions of Derham and White, proved by Sir 



E, Home, 389 

 Apparatus in the feet of flies, 390 

 Leaping muscles of the flea, 39£ 

 Leaping of grasshoppers and Springtails, 393 

 Springing of spiders on their prey, 394 

 Flight of insects, 395 

 Mechanism of insects' wings and their muscles, ac- 

 cording to M. Chabrier, 396 

 Flying of spiders without wings, 397 



CHAPTER XVII. 



Rest of insects, 399 



Night insects rest in the day, ib. 



Day movements of other insects, 400 



Insects have no brain nor spinal cord, ib. 



Want also a proper heart as well as blood, 401 



Supposed pulse in insects, ib. 



No circulation, 402 

 Alleged discovery of an insect circulation, by Dr 



Carus, ib. 

 How the circulation is affected in the sleep of man, 404 



The same effects cannot take place in insects, 405 



Sleep of senses not equally profound, 406 



Torpidity of insects in winter, ib. 



Hybernation of ants, ■* 407 



Anecdotes from Huber, 408 



Hybernation of bees, 410 



Discrepancies of opinion among naturalists 413 



Hybernation of the hearth cricket, 414 



