482 On new Species of Heterocera from Japan. 



The costal margin of this species is more arched than in 

 0. superans. 



56. CEona segregata^ n. sp. 



Primaries black, specked all over with white scales, most 

 noticeably in the female ; two central parallel dentate-sinuate 

 oblique white bands, angulated towards costa ; a subbasal 

 nebula and a W-shaped series of disco-submarginal spots, 

 reddish and diffused in the male, white in the female : secon- 

 daries dark brown, with paler diffused central band and outer 

 border : thorax black, margins of collar and tegulee grey ; 

 abdomen reddish brown; antennae white, with red-brown pec- 

 tinations. Underside pale reddish brown ; costal margins 

 blackish : primaries with a subcostal diffused white streak 

 near the apex ; an indistinct central transverse dusky streak ; 

 eight discal spots and the fringe blackish : secondaries crossed 

 from the middle by three broad dusky belts ; costa and external 

 border whitish. Expanse, ^ 2 inches 7 lines, ? 3 inches 4 

 lines. 



Yokohama {Jonas). 



Allied to " Leheda " heles. 



Cossidse. 



57. Hepialus excrescenSj n. sp. 



,$ . Primaries above pale pinky brownish, reticulated with 

 grey, and sparsely speckled with black ; costa with a post- 

 median convex excrescence ; margin black-spotted ; basal half 

 of the wing, excepting the costal and internal areas, occupied 

 by a large triangular yellowish brown patch, its inferior border 

 edged with whitish ; an ill-defined subangulated yellowish- 

 brown discal band ; secondaries grey, with the costal and outer 

 margins brown, a black subapical costal spot ; body brown : 

 under surface shining brown, costa of primaries spotted with 

 sordid white and blackish. Expanse 2 inches 8 lines. 



Yokohama {Jonas). 



Allied to H. quadriguttaius of Grote. 



58. Hepialus cemulus, n. sp. 



^ . Nearly allied to the preceding, but the primaries paler, 

 brownish testaceous, with the external and internal areas and 

 a transverse belt beyond the cell shining silvery greyish ; two 

 olivaceous spots in the cell and one below it ; secondaries 

 blackish, the external border and apical portion of costa pale 

 with brassy reflections ; thorax whitish, with brown borders ; 



