LEPIDOPTEKA HETEROCERA. 845 



thickly clothed with long hairs; hind tibiae with minute apical 

 spurs. Wings rather narrow. Fore wings slightly convex along 

 the apical part of the costa ; three inferior veins ; first and second 

 contiguous at the base ; third remote. Male. — Antennae deeply 

 pectinated, rather more than half the length of the body. Abdomen 

 not extending beyond the hind wings ; its tip tufted with very long 

 hairs. Female. — Antennae very minutely pectinated, not more than 

 half the length of the body. Abdomen extending a little beyond 

 the hind wings, most thickly lanuginose at the tip. 



A. Alae albae. --_-_- mesomelas, Walk. 



B. Alae nigrae. - marginalis, Walk. 



1. Trichetra mesomelas. 



Mas et foem. Alba ; corpus plus minusve nigrum. 



White. Antennae testaceous. Fore legs black above. Male. — 

 Head black, white in front. Abdomen blackish, white at the base 

 and at the tip. Female. — Head and thorax black. Abdomen 

 blackish above ; tip with black wool. Length of the body 5—7 

 lines ; of the wings 16 — 22 lines. 



Var. p. Fern. Abdomen ochraceous at the tip. 



Var. y. Fern. Abdomen with black hairs towards the tip 

 beneath. 



Var. d. Abdomen white, black towards the tip. 



Var. € like var. d. Head and fore part of the thorax white. 



Var. f. White. Thorax with brown hairs. Tip of the abdo- 

 men with testaceous hairs. 



Var. tj like var. f. Thorax with white hairs. 



a — d. Van Dieman's Land. Presented by Morton Allport, Esq. 



e. Swan Eiver. Presented by Sir J. Richardson. 



/, g. Sydney. Presented by E. Doubleday, Esq. 



h. New South Wales. From Mr. Wood's collection. 



i. New Holland. Presented by the late Earl of Derby. 



j. Van Dieman's Land. Presented by Capt. Ross. 



k. New Holland. Presented by W. W. Saunders, Esq. 



/, m. New Holland. 



2. Trichetra marginalis. 



Mas et foem. Fusca aut cervina ; caput, antenna, pectus et pedes 

 testacea ; abdomen apice testaceum ; alee posticce albo late 

 marginatce. 



