48 
de la Soc. Ent. 1846, p. civ.) ; S. Menas of Silhet (figured in my 
Cabinet of Orient. Entomol. pl. 22), and S. Leto, Doubleday, also 
from Silhet (figured in the Trans. of the Entomol. Soc. vol. v. pl. 15. 
A very fine specimen of this last-named insect, with the markings on 
the wings much more distinct, is contained in the Ashmolean Mu- 
seum at Oxford). 
The wings of S. Mimose are pale yellowish-green with the apical 
margin waved, that of the fore-wings of the male being somewhat more 
emarginate than in the female. The costa of the fore-wings is broadly 
purplish-grey, much-irrorated with white ; beyond the middle arises 
on the costa an oblique dark chestnut spot, which emits an undulating 
line across the wing (which forms a waved fascia in the female), and 
near the tip of the wing the pale costa is separated from the green 
ground by a dark chestnut dash. In both sexes the anal angle of the 
fore-wings is occupied by a grey-brown patch which extends narrowly 
into the wing parallel with the outer margin; the incisures of all 
the wings are tinged with chestnut-purple ; from the middle of the 
pale costa of the fore-wings arises a purplish-brown spot to which is 
attached the ocellus, which is rather small, oval and transverse; the 
centre formed of a small glassy spot surrounded by fleshy-brown and 
this by yellow, more orange-coloured on the side towards the base of 
the wings, where it is also surmounted by a black-brown lunule pow- 
dered with white scales along its middle. The hind-wings are more 
uniformly green above, with an ocellus similar to that of the fore- 
wings, the anal angle produced into a slender tail longer than the 
body of the wing and spatulated at its extremity ; this tail is chestnut- 
brown throughout its narrow part, where it is much-powdered with 
white, the dilated apical part being green. The body is yellow and 
the antenne are fulvous. 
The underside resembles the upper, except that the undulating 
line beyond the middle of the wing is wanting, and is replaced by a 
similar one nearer to the outer margin of the wing, and running along 
the hind-wings. 
The underside of the abdomen is marked with purple spots along 
the apical margin of the segments. The antennz of the males are 
very broad, emitting 50 rays on each side, the five or six terminal 
joints with very short rays. The rays on each side of each joint 
arise at a little distance from the base and extremity of each joint, so 
that there is a more decided space between the second ray of one joint 
and the first ray of the next joint than usual. 
The veins of the fore-wings are arranged as in the typical Saturnia, 
and those of the hind-wings as in S. Menas (as exhibited in my figure 
above referred to) and as in S. Luna, the peculiarity in the subgeneric 
group Actias of Leach containing the above-named species, being 
that the three branches of the median vein of the hind-wings are 
compressed closely together, arising on the inside of the ocellus and 
extending into the long tail, a transverse vein running across the 
middle of the ocellus, closing the discoidal cell, and uniting the inner 
branch of the post-costal vein with the outer branch of the median 
vein. 
