XX The A U THO R’s PREFACE. 
forewarn my readers that I fhall by no means admit two different fpecies of 
changes, as I can plainly and diftinétly difcover in the Chryfalis, as well as in 
the Nymph, all the parts of the future infe@, and can even give ocular proof 
of their exiftence. And as to the parts not appearing externally in the Chry- 
falis as clearly as they do in the Nymph, and the former having a gold co- 
Jour, which I never obferved in the latter, it is not a thing of confequence 
enough to make me alter my opinion. 
But perhaps the reader, as yet a novice in the hiftory of infeéts, may not 
rightly underftand what I mean by the words Nymph and Chryfalis, I muft 
refer him to the figures of this work, where he will find the Nymph of the 
Ant reprefented under number v. Tab. XVI. and the Chryfalis of the noc- 
turnal Butterfly, under the fame number v. Tab. XXXIII. For the fake of 
greater perfpicuity, I obferve the fame order in Tab. I. XII. and XXXVIII. 
where I place before my readers other fpecies of Nymphs that fhall be de- 
{cribed in their proper places, and afterwards fummed up under one view, in 
the general comparifon of mutations, with which I intend to conclude this 
work. Farewell. : | 
CONTENTS 
