Zoological Society. 397 



Bombyx Satumus, Fab. Ent. Syst. iii. a. p. 409 ; Oliv. Enc. Me'th. v. 

 27. 11. 



The palpi are short and thin, but distinct. The antennae are 

 short, each joint emitting four rays lying flat. 



The specimen in the British Museum collection is pale russet- 

 coloured beneath with a pinkish bloom, the centre of each wing with 

 a group of brown spots much larger in the hind- than in the fore- 

 wings ; a small brown spot also occurs at the base of the hind- 

 wings. 



Sp. 17. Saturnia Tyrrhena, Westw. S. alls anticis falcatis 

 griseo-fuscis basi rubidis, striga undulata prope basin alteraque 

 lunulata subapicali fuscis, macula parva mediana subtrigona 

 vitrea ; limbo apicali rufo ; alis posticis rufis ocello magno ovali 

 nigra pupilla parva vitrea ; striga undata obscuriori, limbo lato 

 pallide griseo-fusco . 



Expans. alar, antic, unc. 4-5i. 



Hab. Port Natal. In Mus. Britann. 



The fore-wings are pale greyish-brown, sometimes with a reddish 

 tinge ; they are acute at the tip in both sexes, but the outer margin 

 is considerably more emarginate than in the female ; the base of the 

 wing is red, and near the base is a red, very much angulated striga 

 almost suffused into the ground colour of the wing, and outwardly 

 edged with a slight dusky striga ; across the middle of the wing is a 

 waved but nearly obsolete striga, and in the middle of the wing to- 

 wards the fore-margin is a small subtriangular vitreous spot without 

 any appearance of ocellus ; beyond the middle is a row of reddish 

 arches inwardly slightly edged with a thin dusky line. 



The hind-wings are reddish, with a broad pale greyish-brown border ; 

 in the middle of the wing is a large round black spot, with a very 

 small vitreous lunar spot in the middle, preceded and followed by a 

 slight dusky waved striga. The body above is of the ground colour 

 of the wings, with the hind part of the thorax marked with red. 

 The underside of the body, collar, and spot at the base of the hind- 

 wings are white. The head, antennae and legs dark brown. 



The wings beneath are very pale buff, with the centre of each 

 marked by a large brown irregular spot, traversed by the pale veins. 



Antennae of the male with 32 rays on each side (four from each 

 joint). One-third of the apical part of each antenna is destitute of 

 rays. 



The antennae of the female are slightly pectinated for two-thirds of 

 the base, the two apical rays of each joint being almost obsolete. The 

 tips are serrated. 



The palpi are deflexed, and the tips appear just beyond the hairs 

 of the lower part of the face. 



Var. Smaller, with the fore-wings and body destitute of the red 

 colour, and the hind-wings fulvous with the outer margin purplish- 

 grey, with the eye as in the others. 



Sp. 18. Saturnia Forda, Westw. S. pallide griseo-fusca £, pal- 

 lide cervino-lutea ? , striga subobsoleta pone medium, posticis 



