198 



TRIPHOSA. By L. B. Prout. 



entirely obsolete between median and submedian veins, only reappearing as two small posterior spots, one on 

 the submedian, the other at the margin; subapical spot on the contrary somewhat extended and more mixed 

 with fuscous. Type and three other examples in the British Museum collection, ex coll. Leech. 



ruhrodotata. T, rubrodotata Walk. (61) differs from dubitafa in its much larger size, rather less glossy wings and 



more variegated colouring. The pale bauds are much paler than the corresponding parts in duhitata; the 

 veins in the distal area are in part strongly dark-marked, whereas in duhitata the dark marking is less pro- 

 nounced and reduced almost to mere dots; hindwing darker than in duhitata, the veins still darker, white- 

 spotted; distal area suffused with red. Under surface darker than that of duhitata. N. hidia and Kwei-chow, 

 W. China, June-July. 



expansa. T, expansa Moore (5 k) sunk by Hampson to the preceding, lacks the crimson basal and median bands. 



The median area is on an average somewhat narrower, the projections in its distal edge — particularly the 

 bilobed projection between the 3'''* radial and 2"'^ median — less strong, the succeeding area less pale; distal 

 margin of hindwing not crimson. From duhitata its large size will at once distinguish it. N. W. Himalayas 

 and Pu-tsu-Fong (W. China), June-July. 



largeteau- 



aria. 



T. largeteauaria Oh. (61), wrongly described (apparently from the ? only) as a Eucosmia (= Calocalpe), 

 ■ is still nearer to ruhrodotata in the shape and width of the median band, which, however, projects less at the 

 1^' radial and is of a dull dark brown-grey colour, not crimson. The hindwing nearly always shows a pale 

 area beyond the middle. Occurs in several localities in W. China, June-July. 



amdoensis. T. atndoensis Aljyh. is unknown to me. Staudinger has sunk it to Eucosmia alter nata, but Alpheraky 



maintains it is a true 'Triphosa, agreeing in structure with sahaudiata and incertata. Smaller than sahuudiata 

 taochata, hindwing with less strongly crenulate distal margin, marginal line almost continuous, black, distally 

 dotted with white between the veins, the hindwing paler, more indistinctly marked, almost whitish. Subter- 

 fasciata. minal white line of forewing rather sharply expressed. — ab. fasciata ah. nov. is analogous to incertata ab. 

 fasciafa, the median band being darkened, while anteriorly and posteriorly there is a strong brownish or 

 reddish tone; in the present species the brownish colour does not extend beyond the subterminal line. Myn- 

 dyn-scha, Amdo. 



albiplaga. T. albiplaga Oh. (5 k, 71). Very distinct in markings from the more typical species of the genus, 



rather recalling, in tlie oblique white markings of the forewing, the avHfj&ate-group of Photoscotosia, but readily 

 distinguished by the crenulate margin of the hindwing, absence of white patches in the hindwing, absence of 

 hair-tuft beneath the cf forewing. Wings slightly narrower than in typical Triphosa, marginal crenulations 

 less deep. Distributed in W. China, May-August. Local races also occur in India. 



incertata. T. incertata Stgr. (8_d). Smaller than duhitata, distal margin of forewing less curved, of both wings 



less strongly crenulate. Frontal tuft strongly developed. Wings less glossy, coloured nearly as Calocalpe 

 undulata or rather darker, but without the strong pattern of dentate dark lines, the markings more nearly 

 resembling those of a weakly-marked C. cervinalis. Forewing with the dentate pale subterminal line not 

 terminating posteriorly in such a conspicuous spot as in cervinalis and duhitata. Hindwing scarcely paler 

 than forewing, in the distal one-third concolorous with forewing, the pale subterminal therefore distinctly 

 marked. Under surface more glossy and weakly marked, postmedian and subteruiinal lines indicated, cell- 

 fasciata. spots more apparent than above. — ab. fasciata Stgr. has the base of the forewing and a broad median 

 fascia dark grey. — Ferghana to the Tarbagatai Mountains. 



duUosaia. T. dubiosata Walk. (11 g) differs from incertata in its rather darker and duller (more greyish brown) colour, 



somewhat more oblique distal margin of forewing (at least in the c?), rather broader median band, usually 

 conspicuous dark discal dot on forewing above, more interrupted subterminal line of both wings (yet developing 

 rather conspicuous white spots behind the 3'''* radial and 2"'' median of forewing) and more curved or 



variegaia. subangled postmedian Hue on hindwing beneath. Hindwing above often very weakly marked. — ab. variegata 

 {Warr. M. S.) ab. nov. has the areas proximally and distally to the median band of the forewing suffused with 

 reddish ochreous. - duhiosata is widely distributed in Afghanistan and India and according to Wileman 

 occurs also in Japan. 



seseraria. 



T. seseraria Oh. (13 a) is only known to me from Oberthur's figure, here copied. Information by which 

 it could be definitely located (such as sex and structure) is not given, but as the figure seems to show a cf, 

 and has neither the anal tufts nor the hair-tuft of the hindwing, I place it here. Otherwise I should have 



