228 Mr. MakshamV further Ohfervations on the Wheat InfeSl. 



Tn't/ci of Mr. Kirby, and perhaps may prove to be the different fex; or 

 it is poflible that Mr. Kirby might have taken his infect immediately 

 on its quitting the pupa ftate, and before the wings were completely 

 dry, fo that the obfolete clouds with which they are marked had 

 not become vifible. The manner in which both thefe Gentlemen 

 met with this fly leaves very little doubt in my mind of its being 

 the true parent of the larvae we have defcribed; and this opinion 

 is very much ftrengthened by the very great affinity there feems to 

 be between our Tipula and the Tipula Juniperina of Linnams, and 

 Tipula Plni of the Baron De Geer, Tom. vi. p. 417. Tab. xxvi. fig. 

 8 — 19 ; it however differs in colour from the Latin defcriptions of 

 thofe infects, although, it agrees in the other particulars. But the 

 long French defcription which De Geer gives of Tipula Pirn, varies 

 very little from that of our infect; and the figure, being uncoloured, 

 would pafs for it very well, as the antennae and wings feem exactly 

 to correfpond : even the account of the larva is nearly the fame* 

 except that he remarks a thin green line pafling through the body 

 of his, which he conjectures to proceed from the food, viz. the leaves 

 of the pine ; if this be the fact, fuch a line would not be vifible in 

 our larvae, as they feed on the pollen of the wheat, which is nearly 

 their own colour : another difference is, that the larva? of T Pint 

 form little refinous cafes to preferve themfelves during the Winter * 

 but both continue unchanged until Spring, as appears by Mr. 

 Kirby's opening one of the cafes, which he fuppofed contained 

 the pupa, and finding the larva unchanged, from which I con* 

 elude that we have not yet feen the pupa. The flies of T. Ju- 

 niperina and T. Pint do not come forth until May, which time will 

 exactly fuit our little animal for depofiting its eggs in readinefs for 

 the bloffom of the wheat j and from the appearance of fome of the 

 little cafes which I have by me, that are fo tranfparent as to admit of 

 a perfect view of the larva, I am of opinion that they are approach- 



7 ing 



