PHOTOSCOTOSIA. By L. B. Prout. 203 



crosses the cell-spot instead of being placed proximally to it as in all tiie other species; its course is also 

 characteristic, as will be seen from our figure; postmedian distinct at cosla only. Hindwing white, the distal 

 margin only faintly darl^ened. Underside dirty white, forewing with thick costal mark indicating commencement 

 of postmedian. Ferghana to Thian-Shan and Tarbagatai Mountains. — fusca Stgr. has the forewing much fusca. 

 darlcer and more distinctly marked, the hindwing with a fuscous distal border. Kashgar. 



Ph. leechi Alph. (5 li). Related to falaearctica, the forewing very similar to the form ^usca. The ante- Uechi. 

 median line -precedes the cell-spot and is more normally formed, the postmedian projects less far at the 

 P' radial but on the other hand forms a sharper projection behind the 3'''^ radial, and is accompanied distally 

 by a slender white line; apex with a distinct black streak. Hindwing cleaner white, the dark border less 

 extended than in palaearctica fusca. Underside also whiter, especially the hindwing. Amdo and l\oko-Nor. 



Ph. undulosa Alph. (5 li). This and the 3 following constitute a rather difficult group, on account of undulosa 

 the great similarity of the markings on the one hand and their evident variability on the other. The present 

 species and achrolopha differ from those which follow in their paler fawn-coloured forewing, generally paler 

 hindwing and underside and absence of greenish subbasal and postmedian bands or shades. In undulosa the 

 antemedian black line of the forewing is not sharply defined proximally, the postmedian forms a series of 

 very deep curves and long teeth. Hindwing in the cf white with dark distal border, in the ? more suffused 

 with grey. Underside dirty whitish, forewing shaded with fawn-colour and smoke-grey; both wings with discal 

 dot and postmedian line, at least in its anterior half, thickened at costa margin. S. W. China and Koko-Nor. 



Ph. achrolopha Pung. (5h; 5 k, as oberthijri) is aberrant in that the cf, instead of the black hair-tuft achrolopha. 

 on the forewing beneath, has only a slender, colourless pencil between the submedian veins. It differs ' further 

 from undulosa in having the antemedian line sharply defined proximally, preceded by a dark line, the post- 

 median broadened, less deeply lunulate-dentate; but with a sinus inwards between the radials. Ground-colour 

 both above and beneath somewhat paler. Koko-Nor. 



Ph. rectilinearia Leech (1 1 g). More deeply coloured than undulosa, the proximal area (except a rectiUnea- 

 naiTow pale green band) being bright brown, the distal area and a costal spot proximally to the postmedian ^'^■ 

 strongly tinged with the same; the black antemedian line straight; an interrupted greenish shade follows the 

 postmedian. Hindwing dark grey becoming brown distally; anterior part of fringe pale yellow. Under surface pale 

 yellowish strongly irrorated with fawn-colour; basal area of forewing suffused with dark smoky especially at 

 the antemedian line, distal area darker fawn-colour, leaving a pale apical spot; both wing with cell-mark and 

 beginnings of postmedian line. Omei-shan, 1 ?, taken in July. Possibly an aberration or variety of the 

 Indian multilinea. 



Ph. pallifasciaria Leech (5 k) is still further removed from undulosa in colouring, the pale fawn-colour paUifascia- 

 being almost entirely replaced by bright browns. Forewing with subbasal band less dark than in that species "*• 

 dissolved into lines, the succeeding area more marked with lines, median area white or yellow-white, narrower, 

 than in undulosa, postmedian forming a shallow sinus inwards between the radials, then shallowly lunulate 

 and dentate; apex rather pale. Hindwing more white-mixed than in rectilinearia, otherwise similar. Underside 

 also quite similar, the dusting slightly darker. Che-tou, 3500 m, July-August, founded on 2 ??. Also occurs 

 in Sikkim where (at Yatong) it is either extraordinarily variable or has hitherto been confused with one or 

 two similar species. Like the preceding, it may possibly have to sink to multilinea. 



Ph. velutina Warr. (8 c vetulina in the plate) is a very distinct species. The blend of yellowish-grey (in very velutitia. 

 fresh specimens moreolivaceous), reddish brown and velvety black in the forewing rather recalls atrostrigata but the 

 white hindwing and the character of the markings separate it widely from that species. The black markings are the 

 most characteristic. Hindwing in both sexes clear white, broadly suffused with smoky at inner margin and 

 with a dark (sometimes yellow-mixed) marginal band; a dentate postmedian line, angled behind 3^'' radial, 

 sometimes obsolescent in cf ; the ? often has the smoky suffusion more extended. W. China, July — August. 



Ph. amplicata Walk. (== trisignata Moore) (6 1). This and the remaining species of the genus are less ampUcata. 

 attractively coloured than the preceding, being chiefly brown-black and white. In typical amplicata the exact 

 proportions of brown and black vary, as also the size of the white costal mark, which is often reduced and 

 broken up into 2 or 3 small spots; an obscure, partly interrupted white line bounds the median area distally, 

 but proximally such a line is scarcely 'ever noticeable. Hindwing dark smoky with the costal area narrowly 

 (?) or more broadly (cf) white. Forewing beneath with the disc largely whitish, not sharply bounded, a sinuous 

 postmedian line, thick on costa, obsolescent posteriorly; a dark discal dot; a white spot at apex. Hindwing 

 beneath white, mostly dusted with grey, a discal dot and a postmedian line present, the latter bent behind 

 the 1^' radial. Distributed in Sikkim and the N. W. Himalayas. — dejeani Oh. (61) is a form with the white dejeani. 



