Publ. 5. III. 1939. 
XANTHORHOE. By L. B. Proitt. 
253 
lunules (rarely all) dark-filled proximally. Hindwing whitish, weakly marked excepting the cell-dot. S. Tibet: 
Nam La, Tsangpo Valley, 14 000 feet, 24 July 1924 (J. Kingdon Ward), 7 in the British Museum. Probably 
nearest the tianschanica (Alph.) group (Vol. 4, p. 224). — phariensis subsp. nov. (25 e). Slightly narrower-winged, phariensis. 
costa relatively more elongate; l or 2 more joints of the antenna pectinate. Forewing with median area slightly 
broader, scarcely differentiated from the rest except by the very highly developed white and dark vein-dots 
(or short dashes) of the adjoining areas. Tibet: Phari, 16 000 feet, 19 July 1924 (Major R. W. G. Hingston, 
Everest expedition). Aspect very different, more recalling some Coenotephria ludificata or even light Colostygia 
multistrigaria (Vol. 4); 1 should unhesitatingly regard it as a good species but that a $ from the same expedition, 
21 July at 14 000 feet (antennae broken) lias the shape of oligepeles , the median area slightly more band-like 
than in phariensis type. 
X. aemyla Prout (Suppl.-Vol. 4, pi. 18 f) is another high-altitude Tibetan Xanthorhoe (Posho, E. Tibet, aemyla. 
16 000 feet). Hindwing somewhat elongate near costa (approaching the shape of an Ortholitha) and with the 
2nd median arising from the middle of the discocellulars, thus appreciably behind the cell-fold; uniformly 
whitish, with interrupted dark terminal line. Forewing, on the other hand, relatively short and broad, the 
scaling, the pattern of definite lines and the browner shades totally unlike those of oligepeles; postmedian approxi¬ 
mately parallel with termen, its sinuosities weak, the median band brownest at its proximal and especially at 
its distal border. 
X. molata Feld. (25 e <$, $). By far the commonest of a small group of S. Indian species whose differ- molata. 
entiation may perhaps give some trouble. On the whole smaller than the rest. Discocellulars normal for Xan¬ 
thorhoe; pectinations rather long, but not extraordinarily. Attention may be called to the sharply white apex 
of the forewing beneath and the dark subterminal shades of both wings, above and beneath. Forewing extremel}’ 
variable, particularly as regards the median band; this can be dark or mottled and may enclose a very ample 
or a narrow or incomplete pale-grey or white area, often limited to an encirclement of the cell-dot (the name- 
typical form). Hindwing above very weakly marked, pale in the dark in the Underside with the strongly 
darkened subterminal shade of the forewing nearly reaching the termen, which it touches behind the white 
apical spot. Ceylon (type) and S. India. — ab. coarctata nov., parallel to some Palaearctic aberrations thus coarctata. 
named, has the median band extremely narrowed, strongly darkened, basal patch normal, the rest of the markings 
somewhat blurred. Hindwing with suggestion of a still narrower band. Nilgiris, 1 $. 
X. trusa sp. n. (25 f). Expanse 33—35 mm, about as in the largest molata. Pectinations extremely long trusa. 
(8 or 10 times the diameter of the shaft), the difference from those of molata readily observable even with the 
naked eye. No other infallible distinctions can yet be demonstrated, but the following indications should be 
found useful. Forewing with the antemedian somewhat more curved (yet not nearly so much bent as in the 
rest of the group); the area just outside the median band decidedly tinged with brown (in molata nearly always 
white); fringe less strongly chequered. The hindwing above and both wings beneath are a little less white than 
in most molata, but extremely similar thereto. Palni Hills (W. H. Campbell), the exact situation not given 
(from Ivodaikanal, at 7000 feet, I have seen only molata itself). The type in the British Museum, is a beautiful 
form, with the central band of the median area broadly white, the rest of the wing predominantly dark; of 
2 (JcJ in my collection (both with the antemedian slightly more curved), the one here figured has the white of 
the median area less pure than in the type, interrupted behind the middle, the other has the pale central parts 
of the area further reduced and grey, not white, therefore not very conspicuous. Some probably collected 
with these (W. H. Campbell), are much darker and cannot yet be distinguished from some molata. 
X. greeni sp. n. (25 f). Size of trusa, perhaps relatively a little longer-winged. Antenna of the <$ with greeni. 
the pectinations decidedly long, though not equalling those of trusa; usually with rather more joints pectinated 
(about 37, against about 32), but curiously inconstant. Tone more brownish, especially of the hindwing, which 
usually shows on the upperside 3 lines, besides indications of the subterminal shading. On the forewing the 
chief distinction is in the angulated antemedian, but the subbasal is also slightly more angular than in the two 
preceding and the interrupted subterminal develops at least a clean white dot in cellule 3. Underside more dark- 
shaded than in molata, the subterminal bands much less conspicuous, apical spot of forewing less white, some¬ 
times wanting, the hindwing characterized by the well-developed lines of the proximal part. Discocellulars 
of the $ hindwing not biangulate, but occasionally showing a very slight tendency to approach that form (2nd 
radial arising just behind end of cell-fold). Founded on 5 very good specimens (4 1 $). in the British Museum, 
from Namunkuli, Ceylon, February 1910 (E. E. Green); also 2 from Maskeliya, February and July (G. C. 
Alston) and a $ from Pat-ipola, March. One aberration has the band of the fore wing more uniformly darkened; 
in another it contains a pale patch round the cell-spot. 
X. magnificata Walk. (25 f). Larger (36 to 42 mm), less brown than greeni, notably on the underside, magnificata. 
which is more mixed with whitish and has a fairly broad subterminal band, though less dark than those of 
XII 33 
