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 buf 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, circumscribed, 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 



