Xj CONTENTS. 



Page 



2. While in action - - - - - 483 



Walking ------ 483 



Running -__--- 485 



Jumping ------ 486 



Climbing - - - - . - - 490 



Flying ------ 498 



without wings (Spiders) - - - ~ 498 



with wings ----- 504 



Beetles - - - - - 505 



Earwigs _ - - - - 506 



Stylops, &c. ----- 506 



Grasshoppers, &c. . _ - _ 506 



Field Bugs, &c. - - - - ,506 



May-flies, &c. . - - - 507 



Butterflies and Moths - - - - 507 



Bees, Wasps, &c. - - - - 509 



Flies, &c. - - - - - 510 



Swimming ------ 512 



Walking in or on Avater - - _ - 513 

 Burrowing - - - - - -514 



Hovering - - - - _ - 515 



Gyrations - - - - - -515 



Dancing - - . - - - " 617 



LETTER XXIV. 



Noises produced by Insects ----- 519 — 537 



While in motion ------ 519 



While feeding, &c. - - - - - 523 



In calling, commanding, or giving an alarm . - . 524 



As expressive of fear, anger, sorrow, love, &c. - - - 527 



By Beetles ------ 527 



Field Bugs ----- 527 



Moths ------ 528 



Bees, &c. - - - - - 528 



Grasshopper tribe ----- 529 



Crickets . . - - - 530 



Locusts, &c. _ - - - - 533 



Cicadae, &c. ----- 533 



LETTER XXV. 



Luminous Insects - _ . - - - 538 — 549 



Glow-worms ------ 538 



Fire-flies - - - - - - 540 



Other luminous Beetles - _ - - - 543 



Lantern-flies ------ 543 



Other luminous insects ----- 544 



Source of their luminous property _ _ - - 546 



Its remote cause - - - _ _ - 547 



Its use ------ 548 



LETTER XXVI. 



Hybernation of Insects ----- 550 — 507 



In the egg state - - - - - 550 



pupa state _ _ - - - 552 



larva state _ - - - - 653 



perfect state ----- 553 



