Mr. J. 0. Westwood on new species of Saturnia. 299 



Mexican species described in this article. The ground colour of all 

 the wings is a rich rosy fulvous, with slight brown shades across the 

 middle of the fore wings. The fore margin of these wings, as well 

 as the front of the thorax, is greyish ; half way between the base and 

 the middle is a very ill-defined and irregularly angulated dusky striga ; 

 in the middle of all the wings is a moderate-sized oval ocellus, being 

 of the same size in all the wings, the centre vitreous, the anterior part 

 being liver-coloured, and the outer part gradually yellow, surrounded 

 by a narrow dusky circle ; half way between the ocellus and the api- 

 cal margin runs a straight but very oblique dusky striga, extending 

 from rather beyond the middle of the hinder margin nearly to the 

 apex of the wing, where it is dilated into a small black patch. The 

 hind wings have a more rosy tint, with a transverse, very ill-defined, 

 dusky striga a little in front of the ocellus, and there is a slender un- 

 dulated dusky striga half way between the ocellus and the hinder 

 margin. 



On the under side the wings are rather more ashy in their general 

 colour, and the dusky stripe between the base and the ocellus in all the 

 wings is better defined ; across all the wings there is a central cloud 

 of tawny running through the ocelli, which are smaller on this side 

 than above, and beyond these marks is a very slight and slender row 

 of dusky scallops ; the subapical margin of the fore wings is more 

 tawny, especially towards the hinder angle. The antennae are ful- 

 vous and broadly feathered, consisting of about 30 joints, each emit- 

 ting two branches on either side. 



Saturnia Sapatoza, Westw. 8. alls supra viridi-sulphureis, 

 nigro-atomosis ; anticis in mare subfalcatis ; omnibus lunula 

 vitrea mediocri, cequali, anticis fascia obscura parum undata inter 

 basin et medium, alteraque undulata inter lunulam et marginem 

 apicalem ; puncto nigro subapicali ; posticis striga transversa 

 media lunulisque subapicalibus obscuris. ^ $ 

 Expans. alar, antic, unc. 3^. .fij 



Hab. in Bogota. In Mus. Britann. 



This beautiful species is one of the smallest of its tribe, and is well 

 distinguished by its peculiar colour and by the form of the lunate 

 vitreous patch, of nearly equal size on all the wings. The wings are 

 sulphur-yellow-coloured above, the disk covered with minute black 

 scales, which give it a greenish tinge ; fore wings with the extremity 

 slightly falcate in the male, more regular shaped in the female, 

 brownish buiF, with a small subapical black oval dot, edged behind 

 with an angulated white line. All the wings marked rather beyond 

 the middle with a lunate vitreous spot, of equal size in all the wings, 

 narrowly edged with black and with a slender curved vein (uniting 

 the lower branch of the subcostal with the upper branch of the me- 

 dian veins) running through the centre of it ; the fore wings moreover 

 with a shghtly waved dusky fascia before the middle and a slender 

 waved subapical dark striga (much more strongly marked in the fe- 

 male than in the male), adjoining which, on the outside, is a narrow 

 wave, paler than the ground colour of the wing, the terminal por- 



