«6 Dr. Roxburgh's Account of 



The wings of the male expand five or six inches, and those of 

 the female from six to eight : the following part of the description 

 applies to both : 



Head scarcely projecting beyond the anterior margin of the first 

 pair of wings. 



Eyes large, of a dark brown colour. 



Antennae pectinated ; of the male oval, of the female lanceo- 

 late. 



Palpi four, the exterior two ascending, hairy, covering the inner 

 vesicular, cream-coloured, deflected pair which hide a conca- 

 vity where the mouth is generally situated in other species. 



Mouth none, nor is there any kind of proboscis or tube. 



Thorax oval, completely clothed with long fipe hair, of nearly the 

 prevailing colour of the wings hereafter to be mentioned. 



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 blueish 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 abdominal edges nearly straight. In the 

 centre of each wing there is a remarkable eye, with the large 

 pupil of micaceous transparency, and abeautiful party-coloured 



iris. 



