CONTENTS. sxvii 



Page 

 LETTER XXIII. 



Motions of Insects — continued. 



Imago 447— 4S3 



1 While in repose - - - - - • - 447 

 2. While in action. 



Walking - - - - - - - 448 



Running ------- 450 



Jumping - - - - - - -451 



Climbing - - - - - - -454 



Flying . - - - - - - 463 



without wings (Spiders) ----- 464 



with wings ------ 469 



Beetles - - - - - - 470 



Earwigs - - - - - -471 



Styhps, &c. - - - - - - 471 



Grasshoppers, &c. - - - - - 471 



Field Bugs, &c. ----- 472 



May-flies, &c. - _ - . - 472 



Butterflies and Moths - . - - - 472 



Bees, Wasps, &c. ----- 474 



Flies, &c. - - - - - - 475 



Swimming .-...-- 478 



Walking in or on water ---..-- 478 

 Burrowing ------- 479 



Hovering _----•- 480 



Gyrations - - - - - - -481 



Dancing - - - - • - - 482 



LETTER XXIV. 



Noises produced by Insects - - - » « 484 — 502 



While in motion ------- 4S4 



While feeding, &c. - - - - - - - 488 



In calling, commanding, or giving an alarm - - - - 489 



As expressive of tear, anger, sorrow, love, &c. - - - - 491 



By Beetles - - - - - - - 492 



Field Bugs - - - . - - - 492 



Moths ----.-- 493 



Bees, &c. - - - - - - - 493 



Gra.sshopper tribe - ■• - « • - 494 



Crickets -.-..-- 495 



Locusts, &c. - - ... - - 497 



Cicadae, &c. - - - - - - - 49.1 



LETTER XXV. 



Luminous Insects ---..- 503 — 515 



Glow-worms -- -.-..- 503 



Fire-flies ----..-- 505 



