RHYNCHODONTODES. By W. Warren. 431 



R. diagonalis Alph. This central Asiatic species is said by Stattdinger to be closely related to, and diagonal™. 

 perhaps a form of. his ravulalis, of which it has the shape, and also a more conspicuous whitish apical 

 streak, continued obliquely across the wing; it is recorded only from Ili and Fergana. 



R. separata spec, nor. (73 b). Forewmg pale ash grey coarsely dusted with black, r the^ lines and shadings separata. 

 black, with no admixture of brown or rufous; inner line indistinct, the outer plain, followed above inner 

 margin by black spots in the intervals, and connected by a black dentate shade, running from inner margin 

 towards apex, with the black-edged subterminal line; hind wing brownish grey; head, thorax, and abdomen 

 pale ash grey. Described from a single $ from Samarcand. This is probably the same insect as three examples 

 from Turcomania, referred to by Staedinger (Iris IV, p. 335) as possibly a subvariety of his centralis, in which 

 the markings are described as well developed, but without any brown suffusion. 



R. plusioides BUr. (73 a). Forewing grey, slightly tinged with brown in places, and with sparse black plusioides. 

 speckling; lines grey edged with whitish on both sides; the inner obliquely curved outwards to submedian fold, 

 almost touching the white inner edging of outer line, then oblique inwards and obscure; the outer angled 

 outwards beyond cell, the angle itself somewhat interrupted, the line below the angle olive brown instead 

 of grej T , edged outwardly with yellowish brown; subterminal line irregularly dentate, preceded by wedge 

 shaped marks and accompanied by brownish scaling ; a diffuse whitish patch oblique from apex, edged beneath 

 by a dark shade from apex of fringe; a black spot in cell towards base and a diffuse cloud at its end; 

 fringe dark grey with a pale basal line; hindwing brownish grey, with pale grey fringe; the white scaling 

 is more developed in some examples than others. Japan, Kiushiu, Oorea, West China. 



R. bit ormatalis Leech. Forewing of <$ brown, the costa and basal two-thirds greyer ; outer line dark biformatalis. 

 brown, elbowed beyond end of cell, closely followed by an oblique grey line from apex; subterminal line 

 grey, waved and sinuous, the terminal area beyond ferruginous; reniform stigma grey with two black dots 

 on it; hindwing brown with da,rk cell dot; $ brown; a creamy streak above inner margin from base to outer 

 line, which is whiter than in $; reniform stigma ferruginous-tinged, with a white dot at its lower end. 

 Chow-pin-sa, W. China. 



R. mandarinalis Leech (73 b). Forewing pale ashy grey suffused with darker grey and dusted with black- mandarina- 

 ish;' lines blackish, edged on each side with pale; the inner hardly visible except above inner margin; the 

 outer obscure in costal hah, bluntly angled beyond cell and often interrupted, oblique inwards to submedian 

 fold, and there again bent, falling more vertically on inner margin; an oblique dark shade from apex, partly 

 swollen across the terminal area; subterminal line grey and obscure except above anal angle, where it is 

 white and dentate, intersecting a black streak; a dark spot in cell, accompanied by raised white scales; 

 hindwing pale luteous grey powdered with darker; in the $ the costal and terminal areas are darkened 

 with purplish fuscous; the basal area below median vein as far as outer line standing out conspicuously 

 pale; the pale oblique streak from apex also stronger; the hindwing darker. The species is recorded by 

 Leech only from W. China; a single $ in the Tring Museum from Japan has the dark and light shades still 

 more strongly contrasted; the pale apical streak tinged with pale brown, which passes beneath the cell and 

 extends to the pale basal area ; the fringes of both wings and the base of hindwing are whiter than in Chinese 

 specimens. 



R. cretacea spec. nov. (73 c). Forewing chalk white, tinged with dull grey along costa and in terminal creiacea. 

 area; inner line fine, rufous, angled below median vein; outer line double, brown black, shaped as in manda- 

 rinalis, the angle broken by the white streak from apex, limited below by the grey terminal suffusion, which 

 is traversed by a curved whitish subterminal line; between the subterminal line and a diffuse dark shade, 

 which reaches inner margin beyond the outer line, the space is white to above vein .3 ; on each side of 

 vein 4 the grey suffusion contains a black brown streak reaching from outer to subterminal line; fringe 

 dark grey; hindwing luteous grey. Described from a single $ from the Goorais Valley, Kashmir. 



R. curvatula spec nov. (73 c). Resembles mandarinalis, but smaller; the double brown-black outer line curvalula. 

 runs obliquely from inner margin to median vein without being bent on the submedian fold, but is there 

 strongly curved outwards, its upper course and angle being, however, lost in the grey suffusion; a dark 

 oblique shade runs from apex to inner margin beyond outer line; the obscure subterminal line is preceded 

 by black dashes, and like mandarinalis is distinct only at anal angle, but even there is not so strongly 



