io PLAT E CCCCLXI^. 



former ftate its appearance muft be familiar, therefore, to this afliduouf 

 collector. The prevailing colour in this delineation is brown, with lon- 

 gitudinal ftripes of pale orange, rofy- white and yellow. Along the 

 upper part of the back is a broad ftripe of faint orange, inclofmg, on 

 each joint, an oblong, or fomewhat ihuttie-form fpot of black, and 

 which altogether exhibits a flightly interrupted or fubcatenated band : 

 this is fucceeded beneath by a fufcous band of moderate breadth : a line 

 ftill narrower, and of a delicate rofy-white, runs parallel to this lowei 

 edge of the fufcous band ; and beneath that the body is brown, with 

 the exception of a yellow band, difpofed immediately under the feries 

 of fpiracles. The laft mentioned band extends throughout the whole 

 length, but is confluent on the anterior part of each fegment, and 

 there becomes fo much produced and curved backwards as to appear 

 deeply falcated: This is the lait ikin of the larva according to 

 Abbot. 



7. The difference in the pupa ftate is not considerable : they are 

 nearly of the fame form and colour ; a fimilarity in this ftate is, how- 

 ever, obfervable in many infefts of very different fpecies. 



8. Neither is it conclufive, from the nature of their food, that they 

 mult be fpecifically allied, as vaft numbers of very diffimilar infecls are 

 known to fubiift on plants of the fame kind. — The European S. Con- 

 volvuli feeds on the common bindweed Convolvulus Major, and the 

 Georgian infect on the Convolvulus Batatas. 



9- The time in which the Sphinx Convolvuli makes its firft appear- 

 ance in the winged ftate, is about the middle of September. The 

 larva of the other, Mr. Abbot informs us, went into the ground on 

 the 20th of Auguft, and the fly came forth on the lith of September; 

 this was in Georgia ; but in Virginia, where he met with the fame fpe- 

 cies, a larva of this kind buried itfelf on the 3d of October, and 

 did not produce the fly till the 30th of May following. 



We have thus endeavoured to ftate precifely every material cireum- 

 ftuice, within our own knowledge, that could poffibly tend to deter- 

 mine 



