9 6 PLATE LXXIL 



And it is no lefs diftinguifhed for the very fmgular ftrucW and 

 length of its antenna than for its rarity ; that part which forms one 

 of die moft certain charaaeriftics of almoft every tribe of infeds, 

 conftitutes the moft prominent character in this. 



Of its ufe, we are altogether ignorant, as the various opinions 

 that have been given by former writers are now obliterated; fome 

 have fuppofed that they were the organs of hearing, or fmell; and 

 others have imagined that they were fufceptible of the leaft motion in 

 the ambient fluid in which they move. 



GeofFroy difcovered the organs of hearing in feveral amphibious 

 animals, viz. in the toad, frog, viper, fome other ferpents, lizard, 

 water-falamander, andfkate*; and many of the moft eminent ana- 

 tomifts of the prefent time have difcovered by their refearches into 

 the animal kingdom, thofe organs in different creatures. Profef- 

 for Camper, in 1763, published remarks on the organs of hearing 

 in fifties, in the Harlem Tranfadtions f : Mr. Hunter has defcribed 

 others in the Philofophical Tranfactions J ; and Dr. Monro has de- 

 fcribed and figured great variety of them in his large work ©n the 

 ftructure and phyfiology of fifties. 



Probably, induced by thofe difcoveries profeftbr Fabric'us endea- 

 voured to afcertain the organs of hearing in Infects alfo; and about 

 nine years ago publifhed an account of this interefting difcovery in 

 the New Copenhagen Tranfaetions §, with figures of thofe organs in 

 the crab and lobfter : he found the external orifice of the organ in 

 thefe animals' to be placed between the long and the fhort antennae, 

 the cochlea, &c. being lodged in the upper part, which Linnaeus calls 

 the thorax, near the bafe of the ferrated projection at its apex; we 

 muft therefore conclude that the antennae of Infects are appropriated 

 for fome other purpofes than thofe it is at prefent iufpedted theyanfwer. 



The Cerambyx iEdiiis, Fabricius informs us, lives in the trunks 

 of trees ; its horns are moveable, as it can either direft them forward, 

 or fupport them in an erect pofition ; and when it fleeps, it reclines 

 them along its back ; it alfo. reclines them when it walks quick, or has 

 to paft through a narrow track, as the leaft refinance from any thing in 

 its way, would be very liable to injure, or break them off. 



Our fpecimen was taken in May. 



* Memo! res Etrangers de l'Acad. de Paris, 175.5; ~~ ' 



t In the Year i : 6 3; &c. ' + Vol. Ixxii. £ Vol. ii. p. 3T £ 



