Mr. J. 0. Westwoou on new species of Saturnia. 297 



except that the costa of the hind wings is narrowly white. The an- 

 tennae of the males are but moderately feathered : they are about 

 30-jointed, each joint producing two branches of equal length on 

 either side, except that in the eight or nine terminal joints one of the 

 pairs of branches is gradually obsolete, being entirely wanting in the 

 six last. The antennae of the female resemble those of the male, but 

 are rather less strongly feathered. 



Saturnia Lavendeba, Westw. S. alisflavis, basi obsolete fuscO' 

 sU^igosis ; omnibus ocello parvo ovali {fere cequali) livide cameo, 

 medio vitreo, nigro tenue cincto, anficis pone medium strigis duabus 

 tenuibus undulatis valde obliquis, fascia lata fulvo-brunnea extus 

 undulaia maculaque parva nigra subapicali ; posticis striga ante 

 medium integra, alteraque pone medium dentata nigris serieque 

 subapicali lunularum fulvo-brunnearum. $ 



Expans. alar, antic, foem. unc. 4f . 



Hah. in Mexico. E larva magna viridi spinosa mense Junio in 

 truncum populi capta imago mense sequenti producta. Communi- 

 cavit D. Coffin. In Mus. Westwood. 



Of this handsome species I am only acquainted with female speci- 

 mens, varying in the more or less golden yellow tint of the ground 

 colour of the wings, which are thickly irrorated with small blackish 

 scales. The anterior pair have the fore margin (as well as the front 

 of the thorax) grey. They are rather dusky near the base and next 

 the costa. There is a dusky spot followed by a short transverse black 

 bar, which is connected with a scarcely distinct waved oblique striga 

 extending to the inner margin. In the middle of the wing is an oval 

 rosy-liver-coloured ocellus, the centre vitreous, surrounded by a black 

 ring, resting on the outside on a very oblique waved black line, which 

 is followed by another, broader but rather less waved, and this is 

 succeeded by a broad space of reddish brown irrorated with grey 

 scales, deeply scalloped along its outer margin. Near the tip of the 

 wing is a black spot, below which is a slender black longitudinal line. 



The hind wings are rather dusky at the base, with a nearly straight 

 blackish streak running across them rather before the middle. The 

 ocellus on these wings is sometimes rather larger than that of the 

 fore wings, and in other specimens is united with the transverse black- 

 ish bar ; beyond the ocellus is a slender dentated blackish line, fol- 

 lowed at a short distance by a second, less distinct, and which forms 

 the fore margin of a row of submarginal broad reddish brown lunules. 



The antennae of the females are but moderately feathered ; they 

 are 31 -jointed, each joint only producing a single branch on each side, 

 the place of the two wanting branches being indicated by two minute 

 bristles in their stead ; the branches gradually decrease in length, 

 from about one-third of the length of the antennae to the tip. 



Saturnia Calleta, Westw. S. alis nigricanti-fuscis, omnibus in 

 medio macula angulata strigaque communi integra inter medium et 

 apicem albis notatis; anticis striga angusta angulata versus basin, 

 ocello nigro extus ferrugineo serieque lunularum nigrarum sub- 



