294 Zoological Society : — 



passerine form of Malacoptila, represented by the Bucco rubecula, 

 Spix, and LypornLv rvjicapiUo, Tsehudi, I propose the new generic 

 or subgeneric appellation Nonnula, type N. rubecula {Bucco rube- 

 cula, Spix, Av. Bras. i. t. 39. fig. 1. p. 51). The members of this 

 section are much inferior in size to the true Malacoptila. 



Descriptions of some New Species of Exotic Moths 



BELONGING OR ALLIED TO THE GeNUS SaTURNIA. 



By J. O. Westwood, F.L.S. etc. 



Having, in a former Article in this work, (' Annals ' for April 1850, 

 p. 290), reviewed the whole of the known species of large African 

 moths belonging or nearly allied to the genus Suturnia, and having 

 also, in the "Cabinet of Oriental Entomology," described and figured 

 a number of species of the same group from various parts of India, 

 I purpose in the present paper to describe several additional species, 

 chiefly from the New World, which appears to be very rich in these 

 fine insects. For several of the species contained in this memoir I 

 am indebted to D. Coffin, Esq., who on his return from ^Mexico most 

 liberally presented me with his whole collection, formed in that 

 country during a residence of considerable extent. 



Saturnia Orizaba, Westw. S. alls anticis maris subfalcatis, 

 posticis elongatis ; in utroqiie sexu fulvis, hrunneo griseoque variis, 

 omnibus plaga magna triunguluri {in omnibus atis aquali), apice 

 extus in strigam undatam alham inlus nigra marginatam, insidenti, 

 macula subapicali alarum anticarum e guitis tribus nigris com- 

 posita, linea tenuissima nigra valde undulata submarginali serie 

 macularum parvarum in alis posticis includente. ^ $ 

 Expans. alar, antic, maris, 5} unc. ; foem. fii unc. 

 Hub. in Mexico. Communicavit D. Coffin. In Mus. "Westwood. 

 This species is closely allied to Sat. Aurota (Cramer, pi. 8. fig. a), 

 iVom Surinam, but differs at once in the form of the vitreous patch 

 of the hind wings. 



The general colour is dark fulvous, the middle portion of the wings 

 being darker than the base and apex. The front of the thorax is 

 marked by a narrow transverse white line, and there is a broader 

 transverse one across its hind part, connected with a white streak 

 running in a continuous line along the hind margin of the fore wings 

 for about one quarter of their length, where it forms a strong angle 

 and runs nearly to the costa ; it is outwardly edged with black ; this 

 is succeeded by the large vitreous patch in the centre of the wings, 

 of a triangular form, the side towards the base of the wing being rather 

 emarginate ; and its apex rests upon a white undulated striga run- 

 ning across tlie wings, edged within with black, beyond which the 

 vring is much irrorated with pale and grey scales, especially towards 

 the costa ; near the tip of the wing is a black crescent, and a patch 

 composed of three small black spots in a triangle, on a fulvous ground, 

 preceded by a curved white line ; the margin of the wing is ashy buff, 

 traversed by a very slender, veiT much waved black line. 



