€o Of Flies. 
Some Infects lay up their eggs in cl lifters, as in holes 
of flefti, and fuch places, where it is neceftary they fhould 
be crowded together, which without doubt contributes 
towards the hatching u . 
Other infeeds obferve great order in the difpofition of 
their eggs, which may be found upon the pofts and 
fides of windows, very neatly laid, being round and re- 
fembling fmall pearl, which eggs produce a fmall hairy 
caterpillar x . The white butterfly alfo lays its eggs on 
cabbage-leayes, and always glues one certain end of them 
to the leaf. If thefe eggs be applied to the microfcope, 
you will find them curioufly furrowed and handfomely 
adorned. 
The peafe ichneumon fly y is very fmall, its wings 
large, reaching beyond the podex ; antennae long, alvus 
Ihort, fhaped like an heart, with the point towards the 
anus; it walks and flies but flowly. No tail appears, 
but they have one concealed under the belly. 
Ichneumon properly fignifies the Egyptian rat z , which 
has its name from its hunting or tracing out the eggs 
of crocodiles and afps : a like obfervation. made by fome 
of the ancients on certain infers of the wafp-kind, occa¬ 
sioned the application of that name to wafps, as well as 
the Egyptian rat; there is but one paffage in all antiquity 
concerning thefe wafps, viz. in Ariftot. de Hift. Anim. 
Lib. 5. c. 20. which Pliny, Lib. 11. c. 21. hath rendered, 
thus, Vefpge Ichneumones vocantur (funtautem mino- 
res quam alias), unum genus ex aranes perimunt, pha- 
langium appellatum, & in nidos fuos ferunt, deinde 
iilinunt, & ex iis, incubando, fuum genus procreant;’’ 
that is, the wafp, called ichneumons, and which are frnal- 
ler than other wafps, kill a fpecies of fpiders, called pha-, 
langium, 
». Phy. Theo. p. 393. x Phy. Theo. p. 393. 7 Phy. 
Theo, p, 387, Phil, Tranf,. No, 77. 
