50 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 42. 



Superfamily BOMBYCOIDEA. 



Family SYNTOMIID/E. 



Genus HYALEUCEREA Butler. 



HYALEUCEREA AGYLLOIDES, new species. 



Wliite, without markings. The wings are narrow, the fore wing 

 pointed, the apex depressed. Pectinations of the antennae and eyes 

 black. Expanse, 27 mm. 



Ty2)e. — Female, No. 13919, U.S.N.M., Orizaba, Mexico, January, 

 1911 (R. Muller). 



Family LITHOSIID^. 



Genus NYCTOSIA Hampson. 



NYCTOSIA POICILONOTUS, new species. 



Front of head gray, vertex orange; disk of thorax orange, tegulse 

 and patagia gray; sides of thorax below orange and rosy; abdomen 

 blue-black, the basal segment above rosy, the tip orange. Fore wing 

 leaden gray. Hind wing rosy red with narrow costal and outer mar- 

 gin of dark gray. Beneath as above. Expanse, 40 mm. 



Type.— Male, No. 14213, U.S.N.M., Mexico City, Mexico, June, 



1911 (R. Muller). 



Genus AGYLLA Walker. 



AGYLLA IDOLON, new species. 



White, head and collar dull ocher; fore wmgs gray beneath; legs 

 and abdomen beneath tinged with dull ocher. Expanse, 27-30 mm. 



The male has the antennae with bristles and cilia; no secondar}^ 

 sexual characters. 



Cotypes. — Male and female. No. 14272, U.S.N.M., Mexico City, 

 Mexico, June and July, 1911 (R. Muller). 



ARDONIPSA, new genus. 



Fore wing with vein 5 present; hind wing with vein 5 present; 

 fore wmg without an areole; vems 7-8 and 9-10 on separate stalks; 

 hind \ving with vein 5 from middle of cell. 



Genotype. — Ardonipsa melas, new species. 



ARDONIPSA MELAS, new species. 



Fore vnng dull black; huid wing and body blue-black. Beneath 

 black, with a greenish-blue reflection, stronger than above. Expanse, 

 26 mm. 



Type.— M&le, No. 13953, U.S.N.M., Cuernavaca, Mexico, July, 

 1906 (W. Schaus). 



The specimen was kindly examined by Sir G. F. Hampson, who 

 labeled it "New genus and species near Ardonio.'' 



