1865.] 65 



fctn'o, and it has been beautifully figured with the pupa by Prof. Poey 

 (Decade II). The structural features of the immature stages of this 

 species merit attention. With regard to the synonymy I have adopted, 

 I refer to the pamphlet of Prof. Burmeister, who has given very inter- 

 esting details respecting the species. Mr. Walker cites Sphinx Plu- 

 mierise, Merian, Ins. Sur. PI. 5, as a synonym to Sphinx Tetrio, Fab. 

 I have not seen the edition of Mdlle. Merian's work, which is probably 

 that of 1771 (Hageu's Bib. Ent.), in which this is given. I quote here, 

 from Prof. Poey's Cent. Lepid., some interesting facts respecting the 

 larva of this species : 



" La chenille est remarquable par une queue tres-longue et membra- 

 neuse. EUe est tr^-vorace, et mange les feuilles d'une espece de fran- 

 chipanier {Plumeria), connu dans le pays sous le nom de Lirio, dont 

 la fleur sert a faire des confitures. Elle devore aussi une partie des 

 branches, qui sont remplies dun sue laiteux que Ton dit tres corrosif. 

 mais qui ne fait aucun nial a I'insecte. On trouve la chrysalide au pied 

 des buissons, nullement enfouie sous terre, mais simplement recouverte 

 par une feuille, ou cachee sous quelque morceau de brique, tels qu'on 

 en voit dans les sucreries, autour des habitations ou I'arbre est cultive." 



Cramer's figure of the imago is somewhat larger than the specimens 

 sent, and, nowithstanding the customary grossness which characterizes 

 the figures of the Dutch Entomologist, is quite recognizable. 



Two specimens, Z and 9 . Exp. % 4.00, 9 4.80 inches. Length of 

 body % 2.10, 9 2.40 inches. 



Habitat.— Cuha, (Poey.) Coll. Ent. Soe. Phil. 



Nimiher 537 Poey's MSS. Catalogue. 



The elimination of the present genus by Prof. Burmeister, evinces 

 acumen ; it is confounded by Mr. Walker and Dr. Clemens, under the 

 generic term 3Iaa-osila, with dissonant material. 



AMPHONYX, Poey. 



Amply distinct from Sphinx, Linn., the present genus, erected by 

 Prof. Poey in 1832, has been misconceived by subsequent authors, and 

 the two gigantic species A. Antseus, and A. Duponchel, separated by 

 Prof. Poey. have been confounded together. 



The character insisted on by Prof. Poey in his generic phrase, is the 

 peculiar conformation of the well developed third palpal article, which 

 extends nakedly beyond the head in the form of a corneous booklet. 

 AVere the material sufficiently large, I should have endeavored to have 

 given, from dissectional studies, further details respecting this genus, 

 which I am quite confident is of independent value, lender the genus 



