THE TUSSEH SILKWORM MOTH. 117 
the exterior two ascending, hairy, covering the 
inner vesicular, cream coloured, deflected pair, which 
hide a concavity where the mouth is generally 
situated in other species ; mouth none, nor is there 
any kind of proboscis or tube ; thorax oval, com- 
pletely clothed with long fine hair, of nearly the 
prevailing colour of the wings hereafter to be men- 
tioned; abdomen oblong, (of the female much 
larger,) composed of seven segments, and clothed 
with much long fine hair, like the thorax ; legs six, 
hairy, nearly equal ; the tarsi with a pair of long, 
strong, incurved claws; all the articulations are 
much contracted; wings horizontal, expanded, 
slightly striped in the directions of the tendons ; 
superior, or first pair, of a cream orange buff, or 
brownish colour, or a mixture of these ; first, all 
the anterior margins rather concave, beyond that 
much curved, and bounded with a beautiful light 
bluish gray coloured belt; posterior (fan) edges 
somewhat concave, scolloped, and ornamented with 
a pretty broad, beautiful, cireumseribed, scolloped 
border, of sometimes a darker, sometimes a lighter, 
colour than the rest of the wings ; inner or abdomi- 
nal edges nearly straight ; in the centre of each 
wing there is a remarkable eye, with the large 
pupil of micaceous transparency, and a beautiful 
party-coloured iris; inferior, or second pair, are 
in point of colour like the first pair; the poste- 
rior margins are also scolloped, and with a similar 
