Hate cccclxix. 9 



4. In both kinds the anterior wings are tranfverfely barred, or 

 lineated with a number of indented dark ftreaks, but in the form of 

 thofe the moft obvious difference prevails. Thefe lines are moil nu- 

 merous in S. Convolvuli, and are in that infed fo deeply indented as 

 to exhibit a lozenge-form zic-zac, the arches (if the expreffion be allow- 

 able) being greatly elongated, and extending into an acute falient point, 

 In our prefent infect, the correfponding lines are difpofed acrofs the 

 anterior wings, in a fimilar manner ; but thefe, befides being lefs con- 

 fiderabje in number, are neither zic-zac, nor pointed, for though in- 

 dented, the angles are aim oft uniformly rounded, fo as to affume a 

 fcalloped inftead of pointed arch-like appearance. 



5. Another difference fubfifts in the under wings, and which, as 

 well as that of the upper wings, is considerable. In S. Convolvuli 

 the prevailing colour is grey, in the prefent fine rofe-colour ; in S. 

 Convolvuli the black bands are four in number, in the prefent only 

 three. The two middle bands in fome examples of S. Convolvuli 

 are indeed confluent, but in no inftance whatever have wefeen 

 thofe bands fo clofely united as to conftitute only a fmgle appa- 

 rent band ; while in our prefent infect, the middle of the wings are 

 traverfed by a fingle band only, and that of a black colour, far more 

 intenfe than we have ever obferved in the bands of S. Convolvuli. 



6. The larva or caterpillar of Sphinx Convolvuli is of a fine green 

 colour, with a fingle narrow darker green line along the back ; each of 

 the fegments alfo are marked on the fides with an oblique whitifh yellow 

 line, edged above with dulky or blackifh ; and four duiky fpots, two of 

 which are placed adjacent to the anterior part of the dorfal line, and 

 the others are on each fide contiguous to the fpiracles. This is the 

 laft appearance it affumes before it paffes into the pupa form ; in the 

 ftate previous to this last appearance, its colour is brown, with the 

 fides ochraceous. The larva of our prefent infect we have not feen, 

 but from the drawing made by Mr. Abbot, and which we have atten- 

 tively compared with the former, there can remain no doubt of its 

 being altogether a diftina fpecies. Thefe caterpillars, according to 

 Abbot, are frequent in Georgia, though the moth is rare, and in the 



vol. xiv. C former 



