62 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



Hind wings much as in Bunaea caffraria, the inner angle a little rounded, but not produced 

 into a slight lobe as it is in that genus; the outer edge is regularly curved. The abdomen 

 extends to the outer third of the inner edge of the hind wings, i. e., to the extradiscal line. Legs 

 rather short and stout. 



Venation: Vein I\ originates nearer the base of the wing than usual, in the middle of 

 the discal cell, and much farther inward from the origin of the stalk of II 3 and II 4 than in Gy- 

 nanisa; the discal cell is shorter than in Gynanisa and the line formed by the two discal veins 

 is much incurved and makes two decided angles both in the fore and hind wings. Vein II 2 

 is obsolete, only a minute spur left, which does not reach the costa. The venation in other 

 respects is much as in Gynanisa. The veins of both wings are unusually slender and small. 



Markings : Ground color reddish fawn, with not very distinct lines ; discal spots of remark- 

 able shape, in the more specialized species S. megastica, that of the fore wings is semioval, the 

 outer side deeply excavated, leaving a large comma-like transparent spot, the tail of the comma 

 directed toward the costa, or a simple quadrangular transparent spot; no deep orange circle 

 around that of the fore wing, but that of the hind wing is more specialized, with different-colored 

 rings, white, red, and black around it. Legs long and slender, fore legs unusually long and 

 slender, hairs short, with no tibial spurs; odoriferous sack about half as long as the tibia, 

 rather blunt at the end, swollen in the middle, or cultriform. 



Geographical distribution. — [Asiatic] . 



[Larva not described. The cocoon consists of leaves and bits of wood spun together. — 

 K. Jordan]. 



In its venation this genus is as nearly allied to Gynanisa as to any other African genus of 

 the family, though the shape of the discal cell is different owing to the curved and angulated 

 line formed by the discal veins. The discal spots of both wings are very remarkable in shape. 

 That it is a highly specialized genus is also seen by the obsolescence of vein II 2 . Of the two 

 species S. megastica is more specialized and extreme than S. tola, which has a normal ocellus 

 on the hind wings. 



SYNOPSIS OF THE SPECIES. 



Discal spot of the fore wings very small, 4-angled ; no ring S. lola. 



Discal spot of fore wings a much larger, transparent, comma-like mark; a larger species', an orange red ring. 



S. megastica. 

 [Fore wings in both sexes with a large round or oval vitreous spot 5. royi.] 



[Rothschild (Nov. Zool., II, 1893) lists the species of Salassa as follows:] 



1. S. lola (Westw.) [Silhet]. 



2. S. thespis (Leech) [Ichang], ab. megastica (Swinh). 



3. S. olivacea (Obcrth.) [Manchuria]. 



4. S. royi (Elwes) [Sikkim]. 



[The last three appear in Kirby's Catalogue under Rhodia. In 1910 Jordan added S. 

 mesosa from Assam and S. iris from Sikkim. Jordan has recently (Seitz, Macrolep. of the 

 World) recorded S. olivacea from Ta-tsien-lu, West China; it has the thorax and ground color 

 of wings brownish yellow with a greenish tinge.] 



SALASSA LOLA iWestwood). 



Saturnia lola Westwood, Cabinet of Oriental Entomology, p. 25, tab. 12, fig. 3, 1848. 



Salassa lola Mooke, Proc. Zool. Soc. London, 1859, p. 246. 



Salassa lola Preiss, Abbild. Nachtschmett. p. 4, tab. 3, fig. 2, 1888. 



Salassa lola Kibby, Syn. Cat. Lep. Het., I, p. 762, 1892. 



Imago. — One 3 . Structure and shape of the body and wings as in S. megastica. It is a 

 smaller species, the outline of the wings exactly as in the other species. The abdomen is dusky. 

 Fore wings with the same hue as in S. megastica, but the lines and markings are quite different. 

 Basal line dusky and not so much curved as in S. megastica and situated nearer the discal spot. 

 The latter is small, a simple small quadrangular opake spot, though with no scales on it, it is 

 curved on the inside and at each end provided with a projection, with a third projection on 

 the outside; it is not surrounded by any ring or scales of any color except a few dark incon- 



