[ *92 ] 
autumn, the males may Teem to come under one or- 
der, and the females under another; or, I fhould 
rather think thefe infeds are not clearly reducible to 
any order. 
E C T I O N IV. 
Some of the in feds now under confideration con- 
‘tinuing to lay their eggs till the beginning of No- 
vember, I choofe to defer giving a more particular 
account of them, till the feafon for which they feem 
by nature to have been defigned. Thefe eggs are of 
a regular oval figure, being about the tenth part of 
an inch in length, and the twentieth in breadth ; 
which, though it may feem a very inconfiderable 
'bulk, is certainly large for fo minute an in fed:. When 
they are firfl; produced, their colour is green, but 
,in a few days turns to brown, and by degrees be- 
comes quite black. The covering of the eggs may 
be called thick, if compared with its fmall fize ; 
which at firft is rather of a yielding nature j but, after 
.being expofed to the air, foon contrads a greater 
firmnefs. If this covering is wounded, there ifiues 
.forth a mucilaginous fluid, which is very tranfparent, 
and in appearance of a uniform confidence. Thefe 
.eggs adhere firmly to the branches on which they 
,are depofited, by means of fomething glutinous 
\wherewith they are befmeared, and in a mod fur- 
prizing manner refid all the feverity of the winter. 
Though I have jud now obferved, the contents 
.of the eggs to have the appearance of an uniform 
fluid ; that this cannot in reality be the cafe, fuflici- 
cntly appears from the Aphides they produce in 
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