1883.] 179 



tinct upon the border, which is limited by a Bub-marginal series of black-edged dots 

 of the ground-colour ; secondaries dark brown, broadly blackish on the outer border 

 and traversed by two divergent longitudinal bright ochreous stripes from the base to 

 the third fourth of the wing ; costal and abdominal borders pale, the abdominal 

 area clothed and fringed with long fine hairs ; body golden-bufp, with white anal 

 segment; legs pearly-white, the anterior pair sordid, above grey, banded with 

 whitish ; wings below golden ; body below pearly- white. 



Expanse of wings, 20 — 21 mm. 



" Occurs on the same ground as 172 {Scotorythra arhoricolens) : 

 apparently rarer, but not difficult to capture. In my small series one 

 specimen has an intense black mark on each wing, representing the 

 indistinct dark blotch on the costa of the front wing of the smaller 

 specimens sent, and I notice some variety in the extent to which the 

 hind wing is suffused with yellow." — T. B. 



4. Orihomecyna exigua, var. cupreipennis. 



The primaries sometimes of the usual character, divided into irregular grey 

 areas edged with black and white, with sub-marginal and marginal series of black 

 spots ; sometimes uniformly sericeous grey with a marginal series of black spots 

 alone ; secondaries pale cupreous with diffused dark greyish external border. 



Expanse of wings, 18 — ^20 mm. 



" Taken on Lanai, in September," — T. B. 



This form, if it be constant to locality, might well be separated 

 specifically from O. exigua ; for although the pattern and coloration of 

 the primaries is almost identical in some examples, that of the second- 

 aries is wonderfully dissimilar. 



Melanomectna, gen. nov. 

 To this genus I propose to refer my Mecyna ennychioides and M. 

 nigrescens ; they differ from typical Mecyiia, of which M. virescens is 

 the Hawaiian representative in their long-scaled truncated palpi, their 

 sooty-black coloration, and small size, which characters give them the 

 general aspect of Boreop>}iUa : they, however, differ widely from the 

 latter genus in their narrower and more pointed wings : in neuration 

 they correspond with Mecyna. 



5. Melanomecyna stellata, sp. n. 



<? ? . General appearance and coloration above of M. ennychioides but the 



wings rather shorter, the inner black stripe of the central belt on primaries edged 



near the inner mai'gin with ochraceous ; the reniform spot represented by a black 



8-8haped character ; outer black stripe dotted along its outer edge with minute 



snow-white dashes ; marginal black spots separated by minute white points ; fringe 



long, more broadly white-edged than in M. ennychioides ; eyes much darker ; under- 



surface altogether more uniformly coloured ; the discal blackish spots less distinct, 



not relieved by pale edges ; fringe silvery-grey. 



Expanse of wings, (? , 18 mm., $ ,16 mm. 



