CONTENTS. xxvii 



LETTER XXIII. 

 MOTIONS OF INSECTS continued. 



Imago - - 447483 



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 



Stylops, &c. - - - - - - 471 



Grasshoppers, &e. - - - - - 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 ....... 430 



Gyrations - - - - - - -481 



Dancing ' - - . . . . 432 



LETTER XXIV. 



NOISES PRODUCED BY INSECTS - .... 484 502 



While in motion - - . . _ . -484 



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 --._.._ 493 



Moths - - . . . _ .493 



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



Grasshopper tribe ---.-. 494 



Crickets ---..._ 495 



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



Cicadae, &c. ---'._.. 499 







LETTER XXV. 

 LUMINOUS INSECTS ..... 503 515 



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



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



