RTssrA. 289 



1544. Hyssia orbiculata. (Plate LXXXVI, fig. 19.) 



Mamestra orhiculata, Smith, Pr? U.S. Nat. Mus. xiv. p. 266 (1891) ; id. 

 Cat. Noct. N. Am. p. 131. 



J . Head and thorax grey mixed with reddish brown ; abdomen 

 grey irrorated with brown. Fore wing grey thickly irrorated and 

 suffused with dark brown, the area just below and beyond the cell 

 suffused with reddish brown ; a sinuous black streak below base of 

 cell ; subbasal line represented by a small black spot on costa ; 

 antemedial line represented by a black point on costa, then indis- 

 tinct, angled inwards on median nervure, then double, and very 

 acutely angled inwards on vein 1 ; claviform rather diffusedly 

 defined by black ; orbicular whitish, defined by black at sides, 

 rather triangular and very oblique, open above and below whore 

 the white is diffused to below median nervure and connected 

 with the reniform, which is hardly defined except on inner side and 

 below ; postmedial line double filled in with white, the inner line 

 prominent, strongly bent outwards below costa, slightly incurved 

 below vein 4 and excurved at vein 1 ; some white points beyond it 

 on costa ; su])terminal line whitish, defined on inner side by small 

 dentate black spots, angled outwards at vein 7 and excurved at 

 middle ; a terminal series of black points. Hind wing ])ale, irrorated 

 and the marginal areas suffused with brown ; cilia whitish, with a 

 brown line through them ; the underside whitish irrorated with 

 brown, a slight discoidal point and curved postmedial line. 



Hah. U.S.A., Colorado {Bruce), 1 S , Glenwood Springs, Exp. 

 28 millim. 



1545. Hyssia musculina. (Plate LXXXVI. fig. 20.) 



Dianthoecia musculina, Staud. Iris, iv. p. 272 (1891) ; id. Cat. Lep. pal. 

 p. 162. 



cJ . Head and thorax ochreous white with a few fuscous hairs ; 

 antennae and tarsi fuscous ringed with white ; abdomen ochreous 

 white. Fore wing ochreous white irrorated with fuscous ; subbasal 

 line indistinct, waved, from costa to submedian fold ; a broad 

 diffused fuscous antemedial band obscuring the antemedial line ; 

 claviform absent ; orbicular and reniform very ill-defined, ochreous 

 white with very faint yellow annuli, the former rounded ; an indis- 

 tinct waved medial line dilated into a patch on costal area ; 

 postmedial line indistinct, dentate, defined by white on outer side 

 towards costa, bent outwards below costa, excurved to vein 4, then 

 incurved, the whole area beyond it suffused with fuscous ; sub- 

 terminal line very indistinct, whitish, angled outwards at vein 7 and 

 excurved at middle ; cilia ochreous white chequered with fuscous. 

 Hind wing fuscous, pale at base, the cilia ochreous white ; the 

 underside whitish, the costal area irrorated with fuscous, a curved 

 diffused postmedial line, the area beyond it tinged with fuscous. 



VOL. V. u 



