INSEClo WmCS AND THEIR APPENDAGES. 10ft 



Thougli lie regards tlicse lainince as the cause of 1mm- 

 mino- in bees and flies, lie does not decide that other 

 causes may not produce the buzz of cockchafers, &c., in 

 the thoracic spiracles of which he could not discern 

 them.* 



• Man. of Entom. 468. 



6* 



