168 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



In this genus may also be placed dimidiata Walker, tha- 

 natos Schaus, amarga Schaus, and tympania Druce, though 

 the latter has the antennge a little long. The genus Gois 

 Dyar, with its single species nigrescens Schaus, will immedi- 

 ately follow these. 



Genus HYSTEROCLADIA Felder. 



Hysterocladia Felder, Reise Novara, Lep., 5, 1874. 



Hysterocladia corallocera Felder. 



Hysterocladia corallocera, Reise Novara, pi. 99, fig. 13, 1874. 

 Trosia ignicornis Schaus, Proc. U. S. Nat. Mus., xxxix, 335, 

 1905. 



I think that ignicornis is the male of corallocera, although 

 no female specimens are before me. The pure white little 

 moth with the bright coral-red antennas seems characteristic. 



Genus ARCHYLUS Walker. 

 Archylus Walker, Cat. Lep. Het. Brit. Mus., vii, 1718, 1856. 



The type species, guttifascia Walker, is a megalopygid, 

 and forms a distinct genus. None of the other species referred 

 here, which I know, are congeneric. Archylus nigrisparsus 

 Butler is a liparid, genus Caviria. Archylus mexicana Schaus 

 and A. vesta Schaus are Megalopygidae, but separable gener- 

 ically. Archylus tener Druce also comes in another genus. 



Genus ANARCHYLUS Dyar. 



Anarchylus Dyar, Proc. U. S. Nat. Mus., xxix, 177, 1905. 



Anarchylus mexicana, the type species, is the only one of 

 the genus known at present. 



Genus SULYCHRA Butler. 



Sulychra Butler, Trans. Ent. Soc. Lond., 64, 1878. 

 Sulychra Schaus, Proc. U. S. Nat. Mus., xxix, 333, 1905. 



This genus was described in the Ljparidse. The type 

 species, argentea Butler, has the male silvery white, but the 

 female pale mouse-gray. 



Sulychra vesta Schaus. 



Archylus vesta Schaus, Proc. Zool. Soc. Lond., 289, 1892. 



Silvery white, with slender body, long testaceous antennae, 

 the vertex of head yellow. The wings have the impressed, 

 banded appearance of the species first treated here under 

 Norape. 



