The GRIZZLED BUTTERFLY. Mr. _Rosel_ tells us, that the _Caterpillar_ of this _Fly_ was found on the _Mallow_, with the Leaves of which he fed it till the End of _June_, when it spun a Web amongst the Leaves, and changed to a _Chrysalis_, the _Butterfly_ of which was bred the _May_ following. This _Fly_ is to be taken in Woods and Meads, at the Beginning of _May_: and although small, it flies swiftly, so that you must be very quick to take it. See _Rosel_, Cl. 2. Tab. 10. _Merian_, Vol. 1 Chap. 48. The common Mallow. _Malva vulgaris._ Park. [Illustration: (Decorative Design)] CLASS III. CATERPILLARS armed with Spikes. SECT. _a._ _Whose ~Chrysalis~ hangs by the Tail perpendicularly downwards._ L. 3. CH. 1. I. CL. 3. S. _a._ 1. The ADMIRABLE BUTTERFLY. The great _Stinging Nettle_ is the Food of this _Caterpillar_, which is to be found by observing where the _Nettle-Leaves_ appear to be folded or spun together, for within such Leaves the _Caterpillar_ feeds. It turns in _August_ to a _Chrysalis_, hanging perpendicularly downwards by the Tail, fourteen Days after the _Chrysalis_ is formed the _Fly_ appears. The _Caterpillars_ shelter themselves after this Manner, that they may be the better secured from the too great Heat of the Sun, from Rain, Birds, and a small _Ichneumon Fly_, which often hinders their coming to Perfection, by laying its Eggs therein, which Eggs are of such a glutenous Nature, that they stick fast as soon as laid. Some of the _Chrysalides_ appear as if gilded with burnished Gold, but such usually produce not a _Butterfly_, but a Brood of small, though very beautiful _Ichneumons_. The _Fly_ may be taken in Gardens and other Places, it feeds on _Fruit_ that lies under Trees, _&c._ and is no uncommon _Fly_. It lives quite through the Winter. See _Goedart_, Vol. 1. Tab. 26. Pag. 96. Fig. Opt. List. Fig. 4. Gr. V. 2. Pag. 81. Tab. 81. Fig. Opt. Moff. 100. Num. 6. _An. Hoef._ Tab. 12. Fig. 15. _Raii_, Hist. Insect. P. 126. _Albin_, Pl. 3. _Reaumur_, Pl. 10. Pag. 284, Vol. 1. The Great Stinging-Nettle. _Urtica major vulgaris._ J. B. L. 3. CH. 1. II. CL. 3. S. _a._ 2. The PEACOCK-BUTTERFLY. You must look for the _Caterpillar_ that produces this _Fly_ in the great _Stinging-Nettle_. They are sociable and feed together, are very easy to find, and may be taken full fed towards the End of _June_, at which Time many of them change to the _Chrysalis_, and about fourteen Days after the _Fly_ appears. It is very common, and may be taken on _Thistles_, _Burdock_, _Clover_, &c. The _Chrysalis_ of this _Fly_, as well as the preceding, sometimes looks as if gilt with Gold: but such fine outsides usually produce _Ichneumons_. This _Fly_ likewise lives all the Winter.