298 Zoological Society : — 



apicalibiis ; posticis serie suhapicali macularum nigrarum lineaque 

 tenui undata nigra. ^ ? 



Expans. alar, antic, maris, unc. 4f ; fojminse, unc. b\. 



Hab. in Mexico. E pupa mense Augusti producta. Communi- 

 cavit D. Coffin. In Mus. Westwood. 



This very distinct species is at once distinguished by the black- 

 brown colour of its wings, marked in the place of the ordinary ocellus 

 with an angulated white mark, like a wide prostrate V. The female 

 is considerably larger than the male, and has broader wings, the an- 

 terior being nearly straight along the apical margin, and the hind 

 ones shorter and wider. The thorax has a pale fleshy coloured fascia 

 in front, and the hind part has a less distinct one of dull fulvous ; 

 towards the base of the wing is an angulated white striga, and all the 

 wings are marked in the middle with the above-mentioned angulated 

 white mark ; half way between which and the outer margin of the 

 wings is a white fascia with the edges entire, rather wider in the 

 hinder wings, followed by a space which is much irrorated with grey 

 and fulvous scales, especially in the hind wings, but becoming more 

 uniformly ashy towards the costa of the fore wings. This space in- 

 closes in the fore wings ten slender black lunules arranged in pairs, 

 each pair united together above by a more strongly marked black lu- 

 nule, edged towards the apical margin with white. The anterior 

 pair of lunules is followed towards the costa by a black ocellus bear- 

 ing a slender white arched line, and outwardly bearing a broad ferru- 

 ginous border, and next the apical angle are two white arched lines 

 resting in the middle on a ferruginous patch ; the dull luteous apical 

 margin inwardly becomes paler, and is preceded by a slender waved 

 black line ; the uniformly dull luteous margin of the hind wings bears 

 a row of small black oval spots, followed by a slender slightly-waved 

 black line. The underside is coloured and marked as above, except 

 that the subapical markings are all more clearly defined. 



The antennae of the males are deeply feathered ; they consist of 

 about 30 joints, each emitting a pair of setose branches on either 

 side, except the six terminal joints, which are extremely short, each 

 only emitting a single very short branch on its upper side. In the 

 female antennae the branches extend (gradually diminishing in length) 

 to the tip, but in the eight terminal joints one of the branches on each 

 side becomes gradually obsolete, being quite wanting in the five ter- 

 minal joints. 



Saturnia Chapata, Westw. S. alis roseo-fulvis anticarum costa 

 colloque griseis, omnibus ocello medio, magnitudine mediocri, 

 cequali, medio vitreo, intus hepatico, extus fiavo, circuloque fusco 

 cincto ; anticis striga recta valde obliqua pone medium fusca, ma- 

 cula parva nigra subapicali adjecta. ^ 



Expans. alar, antic, maris, unc. 4^. 



Hab. in Mexico, (/ommunicavit D. Coffin. In Mus. Westwood. 



My unique specimen of this species is a male, and having been 

 reared from the larva, its hind wings are not quite fully expanded. 

 The fore wings are more strongly falcate than in any of the other 



