Hiftory of Tipuld Trin) v7 97 
nea, and always taking my pencil and memor andum-book with me 
when I went into the fields to make my obfervations. ~ iabisque ^ 
Previous to the feafon when the ear begins to emerge from thé 
folium vaginans (b), Y have, as opportunities of examining fir planta- 
tions occurred, been upon the watch for De Geer's Tipula Pini (c) ; 
but not being fo fuccefsful as to meet with that infect, I cannot afcer- 
tain how nearly it may be related to its congener of the wheat: 
I was careful alfo, at the fame time, to infpe& the plants that were 
in bloffom in the borders of the wheat fields, in’ hopes of finding 
(copulá connexos) the two fexes of Tipula Tritici, but with: no better 
fuccefs. "P 
It is to be obferved that I had ufually M the forenoon for 
making my inquiries It chanced that on the third. of June hef 
had occafion to pals through a field planted with: wheat, in theeven- - 
ing, and, to my great furprife and fatisfaction, my attention was im- 
mediately arrefted by an innumerable hoft of our Tipule flying about 
in all directions ; and from that day to the latter end of the fame 
month thefe infe&s were always to be met with in the wheat fields. 
They were feldom tó be feen much before feven o'clock; at eight 
the field appeared to fwarm with them, at which hour they were 
all bufily engaged in laying their eggs; and about nine they géne- 
rally difappeared : they were indeed fo extremely numerous, that if 
each of them were to lay its eggs in a different floret, and thofe eges 
were permitted to produce larvz, I think, upon a moderate calcula- 
tion, more than half of the grain would be — I have no- 
(È) I was is flpongly tempted. to introduce two or hese new sionis into this Paper, v viz. 
evaginate and evagitiation,. to exprefs without a periphrafis the emerging of the ear front ^ 
the folium vaginans, and ewipofition for the laying of eggs, from the Latin phrafe ovi 
ponere; but left this pem fhould wear the appearance of affe tation, I refrained ont 1 it. 
(c) Linn. Tranf. vol. iv. p. 228. 
Now Vo gcc OM ticed 
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