_Erica Vulgaris._ Park. L. 3. CH. 1. X. CL. 2. S. _a._ 10. The WILLOW-BUTTERFLY. About the Middle of _August_, 1748, two of this Species of _Butterfly_ were taken near _Camberwell_, in _Surry_: But in all my Practice I have never seen any of them in the Fields; so that they were look’d upon as very great Rarities. They are very common in _Germany_, and Mr. _Rosel_ tells us, the _Caterpillar_ feeds on _Willow_, and may be found all the Summer. The _Caterpillar_ and _Chrysalis_, in the Plate, are taken from a Draught by Mr. _Rosel_. See _Rosel_, Cl. 1, Tab. 1. The White Dog-Rose. _Rosa arvensis candida._ C. B. L. 3. CH. 1. XI. CL. 3. S. a. 11. The SMALL FRITILLARY-BUTTERFLY. About the 10th of _April_, 1741, I took upon the Ground upwards of one Hundred of these _Caterpillars_, in _Cain_ Wood. I gave them to eat a Variety of Growths (which I gathered on the Spot where I found the _Caterpillars_) but they were so restless and uneasy under Confinement, that they seemed in continual Motion, neither would they eat any of the Food I gave them. On the 18th of _April_ ten of the _Caterpillars_ fastened themselves up by the Tail, in order to their changing into the _Chrysalis_ State, (the rest being dead or gone away) and on the 3d of _May_ following the _Flies_ were bred. This _Butterfly_ is to be taken in Woods and Grass-Fields adjacent to Woods, in the Month of _May_. The Variegated Ketmia. _Ketmia Syrorum Flore variegato._ J. R. H. L. 3. CH. 1. XII. CL. 2. S. a. 12. The GREAT FRITILLARY-BUTTERFLY, with SILVER SPOTS. I take this _Fly_ to be of the Class under Consideration. On the 15th of _July_, 1748, I had three Eggs laid by such a _Fly_ as is represented in the Plate at Fig. 1, and on the 5th of _August_ the young _Caterpillars_ came forth; which, being examined with a Microscope, appeared to be of the Size represented. They were of a Flesh Colour, with Rows of Black Spots on each Joint like the _Caterpillars_ of the _Emperor Moth_, and out of each Spot grew Hairs of a sandy Colour. The Eggs were beautifully fluted down the Sides, were flat at the Bottom, and had a glutenous Moisture upon them, which occasioned their sticking fast wherever the _Fly_ chose to leave them. The _Caterpillars_ on this present 10th of _February_, 1748-9, seem to be alive, but are very small, and, I believe, have eat nothing all the Winter, though they have had Grass given them, which I take to be their proper Food. The _Fly_ frequents Woods and Meads, and loves to settle on _Blackberry Blossoms_, _Thistles_, &c. At the Beginning of _July_ they may be taken with your Net; but as no _Butterfly_ is more swift in Flight, you must attend till they settle, then be nimble and you may catch them. The Scorpion Sena.