246 Mr. Marsham'j Obfervations on the Infers 



" of the cars which I examined, none at all. And when I did find 

 " them, there were but few, and thefe few had not, that I could 

 " difcover, fed on or injured the grain. Since the harveit has been 

 " got in, I have found the fame infect in the hulks of the wild 

 " bearded oats (ave?ia fatua), but have not yet feen it in its fly or 

 " perfect ftate. Should that happen from the chryfalides in my 

 " poffefTion, you (hall hear from me again. — Amongfrthe ears of 

 " wheat I found feveral frnall black flies (as they appeared to me), 

 " and imagined that they were produced from the above-mentioned 

 " fmall yellow cbryfulides j but on confulting our very accurate 

 4i friend Dr. Goodenough. he convinced me that this fmall black 

 44 fly was the Thrips phyjapus of Linnaeus ; and that a fmall yel- 

 " lowilh tranfparent infect, with 6 legs and 2 antennas (found 

 " alio amongft the wheat), was its larva (See tab. 22, fig. 5, 6, 

 - 7, 8)." 



Mr. Kirby's communication to me on this fubject was in a 

 letter dated Auguft 27, 1795, wherein he fays — " You afk me 

 f to make enquiries concerning the infect which has infefted 

 " the wheat this fummer : what follows is the refult of thofe 

 " enquiries, which I hope will give you fatisfaclion. Before I 

 H had received your letter I had paid fome flight attention to the 

 " fubject, being informed of the circumftance by fome intelligent 

 " neighbours ; but your requeft added a ftimulus to my endeavours, 

 " and I flatter myfelf that the refult of my refearches will prove 

 " clear and fatis factory. I had from the firft fufpected the infects 

 " to be the Thrips phyfapus^ a fpecies very common every fummet, 

 " and, after the clofeft inveftigation, my fufpicions are turned into 

 " conviction. I examined a great number of ears, and in them 

 " found this infect in all its ftates, between the interior valve of the 



" corolla 



