Pubi.i3. in. 1939. PROGONOSTOLA; HYPYCNOPA; AESCHROSTOMA; NYCTEROSEA. ByL.B. Prout. 261 
half is partly solid, from the 3rd radial hindward restricted to vein-streaks; proximal and distal areas recalling 
those of Euphyia subangulata (Vol. 4, pi. 10 b), the brown much less bright, the subterminal forming some 
larger spots in the posterior half; terminal line forming paired spots at the veins. Underside of each wing with 
cell-dot, strong postmedian line and slight subterminal shading; forewing slightly suffused. Tibet: Tasam. 
Rongshar Valley, 12 000 feet. 20 June 1924 (Major R. W. G. Kingston, Everest expedition), type in the 
British Museum. 
7. Genus: (ProgonostoJa Meyr. 
Characters of Xanthorhoe, but the antenna of the <$ unipectinate. Hindwing in the only known species 
crenulate. Genotype: cremnopis Meyr. from Hawaii. 
P. cremnopis Meyr. (26 d). Facies of X. natalata or, in the glossy scaling, of some of the X. brujata cremnopis. 
group. Not likely to be mistaken for any other known Hawaiian species. Olaa and Molokai. 
8. Genus: llypycnopa Lower. 
Unknown to me. According to Turner another development of Xanthorhoe , “bearing the same relation¬ 
ship to that genus that Melitulias does to Hydriomena”. Antenna of 8 bipectinate nearly to the apex. Hind¬ 
wing with 2nd. radial arising near 1st.; in <$ with a modified patch of yellow scales on the upperside. 
H. delotis Loiver. Expanse 26 mm. Pectinations of E long (8 to 10). Grey-whitish, with fuscous delotis . 
irroration; lines blackish; forewing with subbasal slender, antemedian broader and very distinct, at slightly 
excurved. postmedian from % costa, with a slight subcostal projection, followed by a minute acute hook 
and by an obtuse central projection, three more or less distinct wavy lines beyond it, terminal line interrupted 
on the veins. Hindwing with termen slightly rounded; several fine dark lines beyond the middle; a large 
patch of yellow modified scales near the costa, less sharply defined than in the Melitulias species. Broken 
Hill (N.S.W.) and Birchip, Victoria. According to Lower it somewhat recalls Ghloroclystis insigillata. 
9. Genus: Aesclirostoma Wan. 
Warren differentiates this genus from Xanthorhoe by the character of the palpus, which is elongate 
and very heavily tufted beneath, the face-cone likewise elongate. The bent termen of the hindwing gives it a 
somewhat distinctive facies. But as both palpus and wing-form show a good deal of variation in Xanthorhoe, 
it would not be difficult to include it therein as a section, especially as only one species is known, so that it 
does not provide any further grouping. 
Ae. marmorata Warr. (26 c). The heavily marked hindwing and underside somewhat recall some Horisme, marmorata . 
but I know no species with which it could be confused; median band of forewing didl red (occasionally more 
brown) marked with blackish. Distributed in New Guinea. 
10. Genus: Uycferoseii Hulst. 
(See Suppl. Vol. 4, p. 129; Vol. 16, p. 86.) 
This genus was founded on the ubiquitous obstipata F., under the synonym of “ brunneipennis sp. nX , 
which differs from Xanthorhoe and Orthonama in that the 3rd radial and 1st median of the hindwing are almost 
always stalked, never well separate at their origin. Further distinctions are found in the nature of the sexual 
dimorphism, in the genitalia and in the sinuous termen of the hindwing. Antenna of $ with paired fascicles 
of cilia. 
N. obstipata F . ( = fluviata Hbn., gemmata Hbn., angustata Haw., lapillata Guen., baccata Guen.. obstipata . 
brunneipennis Hulst) (Vol. 4, pi. 9 e, <$ and $). $ darker than the d, much more reddish- or orange-brown, 
usually with a more conspicuous, commonly broader, blackish median band in which stands a white cell-spot. 
Both sexes are variable and some aberrations have received names (see Vol. 4, p. 228, Suppl.-Vol. 4, p. 129. 
Vol. 16, p. 86). Certainly a migrant, with an extremely wide range in America, the Atlantic islands, Africa 
and S. Europe and reaching N. Europe, Siberia, Corea and Japan. Into the Indo-Australia Region it has pene¬ 
trated less, but it is widely distributed from Ceylon to the Himalayas and is known to me from S. China and 
the Philippines. We have at present no information as to its bionomics here. — ab. inconspicua Warr. presents inconspicua . 
rather a strange aspect on the forewing in that the dark median shade is wanting, so that the central area 
is merely defined by a curved antemedian line (proximal to the cell-dot) and a thick postmedian. A <§ from 
the Khasis. 
XII 
34 
