161 
medium strigis duabus tenuibus undulatis valde obliquis, fascia 
lata fulvo-brunnea extus undulata maculaque parva nigra sub- 
apicali ; posticis striga ante medium integra, alteraque pone me- 
dium dentata nigris serieque subapicali lunularum fulvo-brunnea- 
rum. 9 
Expans. alar. antic. foem. unc. 43. 
Hab. 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 lu- 
nules. 
The antenne 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 antennee to the tip. 
Saturnia Cater, Westw. (Pl. XXXIII. fig. 2.) S. alis nigri- 
canti-fuscis, omnibus in medio macula angulata strigague communi 
integra inter medium et apicem aibis notatis; anticis striga angusta 
angulata versus basin, ocello nigro extus ferrugineo serieque lunu- 
larum nigrarum subapicalibus ; posticis serie subapicali macula- 
rum nigrarum lineaque tenui undata nigra. 3 3 
Expans. alar. antic. maris, unc. 43; foeminze, unc. 5}. 
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- 
No. CCLVIII.—ProcrEpinGs or THE ZOOLOGICAL SOCIETY. 
