Zoological Society. 303 
and confer it on the African insect ; but I contend that as Linnzeus 
clearly defined the American species under that name in the ‘Museum 
Ludoy. Ulr.,’ and in his subsequent work made no attempt to dis- 
criminate the three species, we are warranted, Ist, in retaining the 
name of Paphia for the American insect, in which case it will be ne- 
cessary to sink the Fabrician name of Polyphemus into a synonym of 
Paphia; 2ndly, in giving to the African one the Fabrician name of 
Dione (striking out the incorrect Fabrician reference of Petiver’s 
Guinea insect to the Asiatic species) ; and 3rdly, in giving a different 
specific name to the Tusseh silk moth of India, to which Fabricius 
restricted the name of 8. Paphia, but which it ought certainly not to 
retain, seeing that Linnzeus, when he first proposed that name, knew 
only the African and American insects. Drury has however enabled 
us to clear up the difficulty as to this third species, having figured it 
in the second volume of his ‘ Illustrations’ under the name of M; ylitta 
(pl. 5. fig. 1=Paphia, Cramer. Ins. 13. tab. 147. fig. A), which name 
Fabricius also adopted, giving the Asiatic species twice over under 
the names of Paphia and Mylitta. 
The synonyms of the three species will stand thus :— 
1. Saturnia Paphia, Linn. Mus. Lud. Ulr. 
B. Polyphemus, Fabr. 
Hab. North America. 
2. Saturnia Dione, Fabricius. 
Phalena Guineensis, Petiver. 
Ph. Paphia, Linn. Syst. Nat., ed. 10. ex parte. 
B. Petiveri, Guérin, Ann. Soe. Sericicole. 
Hab. Africa. 
3. Saturnia Mylitta, Drury, Fabr. 
B. Paphia, Cramer, Fabricius. 
The Tusseh Silkworm Moth. 
Hab. India. 
SarurniA Wan serot, Boisduval in Delegorgue, Voy. dans 
PAfr. Austr. i. p. 600. 
Of this supposed species, which inhabits Port Natal, I have seen 
specimens, but I cannot consider them distinct from S. Dione, of 
which they are highly coloured individuals. The following is M. 
Boisduval’s description :— 
“Elle est un peu plus grande que la Saturnia Pyri d'Europe, et 
son port est assez différent. Le dessus des quatres ailes est jaune, 
fortement saupoudré d’atomes bruns avec une bande ¢troite, brune 
doublée intérieurement de gris violitre commune régulitre; com- 
mencant prés du sommet des supérieures et arrivant au bord interne 
des inférieures, juste au niveau de l’extrémité de abdomen. Vers le 
base des quatre ailes on voit une autre bande commune trés-sinueuse 
irréguliére, violatre précédé a la base des s supérieures d’une espéce dé- 
taché de sa couleur. L’ceil des ailes supérieures est petit, transparent, 
cerclé de jaune et entouré d’un peu de violatre surtout dans le male ; 
Peel des ailes inférieures est plus grand, jaune, 4 prunelle diaphane 
et a iris noir cerclé de violet. Dédié 4 M. Wahlberg, l'un des com- 
pagnons de M. Delegorgue.” 
