160 
tripartita, nigra versus apicem connexa; posticis serie submarginali 
macularum rosearum, extus linea undata, nigra e margine griseo 
separata. @ ? 
Expans. alar. antic. maris, unc. 4. 
Hab. in Mexico, Cuantla. E folliculo in mense Octobris invento 
imago prodiit Augusto sequente. Communicavit D. Coffin. In Mus. 
Westwood. 
This species is allied to Saturnia Hesperus (Cramer, pl. 68. fig.), 
but is smaller, and has the dentated fascia of the fore wings extend- 
ing in a straight line entirely across them; it is also much more 
brightly coloured. Both sexes have the fore wings emarginate along 
the outer margin, those of the female being rather less so than those 
of the male. The general colour of the wings is tawny brown; the fore 
wings with the fore margin thickly clothed with grey scales being 
white towards the base; the front of the thorax has a continuous 
white band ; another extends also across the hind part of the thorax, 
and is continued by a white bar along the wing for about one-third 
of its length, where it is angulated, and extends nearly to the costa ; 
it is inwardly edged with bright rosy, and outwardly in part with 
black ; the vitreous patch which occupies the middle of the wing is 
subtriangular, having a narrow white margin succeeded by a wider 
black one. This spot is followed by a multidentate white striga, 
edged with black on the inside and with rosy red on the out, running 
nearly in a straight direction across the wing, and extending also in a 
curved one across the hind wings to the anal margin. This striga is 
followed in both wings by a rather wide space much powdered with 
grey atoms, except towards the costa, which is more ashy coloured ; 
the dull luteous margin is traversed by a slender, waved, black line, 
followed by a white band, and towards the tip of the fore wings is a 
black patch, outwardly dentate, succeeded by two smaller black ones 
edged with tawny, and a short curved and dentated white line ex- 
tends to the tip of the wing. 
The hind wings are very similar to the fore ones, having near the 
base a slightly curved white streak outwardly edged with black, fol- 
lowed by a nearly oval vitreous spot, edged with white and black, 
slightly larger than the spot of the fore wmgs; and the luteous mar- 
gin of these wings bears a slender wavy black line, preceded by a row 
of small rosy and black spots. 
The wings on the under side are coloured exactly as on the upper, 
except that the costa of the hind wings is narrowly white. The an- 
tennze 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 antennee of the female resemble those of the male, but 
are rather less strongly feathered. 
SaTurniA LavenpveErA, Westw. (Pl. XXXII. fig.3.) S. alis flavis, 
bast obsolete fusco-strigosis ; omnibus ocello parvo ovali (fere 
equali) livide carneo, medio vitreo, nigro tenue cincto, anticis pone 
