POLYTHRENA; AMNESICOMA. Bv L. B. Prout. 
311 
H. protagma sp. n. (31 cl). Considerably darker than multifaria, notably on the hindwing; which has protagma. 
a somewhat acuter tooth. Markings of forewing somewhat intermediate towards those of cervinaria, especially 
in the narrowing of the median area posteriorly and the weakening of the dark subterminal markings also 
posteriorly; hair-pencil of forewing more buff and longer than that of multifaria, reaching the tornus and 
spreading forward about to the cell. Sikkim, Khasis and Yunnan hitherto inexcusably mixed with multifaria ; 
type from the Khasis in the Tring Museum. Hampson noticed the important structural distinctions between 
this and the two preceding, but failed to appreciate their significance. agaura subsp. nov. Considerably agaura. 
larger (length of a forewing fully 19 mm). Forewing with the 3rd row of black spots (the strongest of the proximal 
series) more irregular, the one between fold and 2nd submedian being much larger than either of the others 
(but perhaps inconstant?). Hindwing with tail scarcely so acute; more variegated above, the pale postmedian 
distinct, subterminal only developed between 3rd radial and 2nd median, followed distally by a bright, some¬ 
what tawny streak. Arizan, 7300 feet (A. E. Wileman), only the type known. 
47. Genus: I*olytlireiia Guen. 
(See Vol. 4, p. 168; Suppl.-Vol. 4, p. 82.) 
Differs from Eustroma and Lygris in a number of characters, but has, in the <$, a similar hair-pencil 
on the forewing beneath. Face smoother. Palpus shorter. Wings long and narrow; forewing with areole simple; 
hindwing more as in Lygris than in Eustroma , the discocellulars strongly biangulate. Only 3 species are known 
and these inhabit Siberia and West China. The two most closely related genera, Trichobaptria Prout and 
T-richodezia Warr ., have been sufficiently dealt with in Vol. 4, which should be referred to by students of the 
Geometridae of West China. 
P. miegata Pouf. (Vol. 4, pi. 11 b). Yellow with black markings, like all the Polythrena. Hindwing miegata. 
less extremely elongate than in the others, its postmedian band more distally placed than in the Palaearctic 
coloraria, less shortened and less oblique than angularia ; costal area of forewing cut by t w o yellow lines or 
bands in proximal half. Szechuan, the type from Mu-pin. 
P. angularia Leech (Vol. 4, pi. 11 b). Black patches of forewing more solid and less numerous than in angularia. 
miegata. Distributed in the Mountains of Szechuan, the type from Pu-tsu-fong. 
48. Genus: Ainiieslconia Warr. 
(See Vol. 4, p. 204; Suppl.-Vol. 4, p. 104.) 
This genus or, as some systematists would prefer to say, section of Photoscotosia - typically differs 
only from the following in the absence of the hair-pencil of the <$ forewing and its correlated specializations; 
but I provisionally refer here also one species ( albiseriata Warr.) with closely similar genitalia but slightly different 
shape and structure, which certainly cannot be allowed to remain with Dysstroma, where Warren and Hampson 
placed it. Himalayan and Tibetan, 5 species known. Type: simplex Warr. Seems to connect Entephria with 
Photoscotosia. 
A. albiseriata Warr. (31 e). Somewhat less broad winged than the similarly coloured species of Photo - albiseriata. 
scotosia, costa of hindwing not arched, 2nd discocellular angled, though not elongate as in Dysstroma, etc. 
The whitish spots (separated by dark veins) outside the discocellulars of the forewing are characteristic, though 
variable in size. Underside much paler, forewing with dark distal border and whitish apical spot, hindwing 
with weak s u b-terminal band, only well developed in anterior part. Sikkim, especially Tonglo, 10 000 feet; 
also from Bhotan. condigna subsp. nov. Large and rather broader-winged, forewing above with increased condigna. 
olive-yellow admixture in the paler parts, beneath rather dusky and weakly marked, but with the whitish 
apical spot very clear and a second (smaller) light spot at the origin of the postmedian; the white spots of the 
median band much reduced or almost obsolete. Tibet: Chumbitang, 13 000 feet (Major R. W. Hingston), the 
type a beautiful $ from the Everest expedition of 1924; a good <$ from the same district and one merely la¬ 
belled “Sikkim (Knyvett)”, presumably also from high altitudes, in the Tring Museum. Slightly recalls Ph. 
rivalaria Leech in its rich colouring. 
A. bicolor Moore ( — subalbata Warr.) (31 e). Very like small Ph. tonchignearia but somewhat rounder- bicolor. 
winged, the hindwing with broader dark border. The absence of the hair-pencil immediately distinguishes the 
cJ; the underside gives further distinctions: white subapical spot of both wings larger, base of hindwing with 
some dark suffusion (in tonchignearia remaining clear white). Sikkim at 13 000—14 000 feet; also Chumbi 
Valley, Tibet. 
A. simplex Warr. (Suppl.-Vol. 4, pi. 10 e). Easily distinguished from those Photoscotosia species which simplex, 
have partly orange hindwing, not only by the simpler structure but also by the angulations of the postmedian 
