486 NOCTUID MOTHS 



tuft is followed by a short, deep fold, which is darker than 

 the rest of the wing — probably filled with dense black hair. 



Head, thorax and fore wing above buff-brown, the latter 

 irregularly dark-banded at middle ; a dark spot in the fold 

 near base, followed by an indistinct, slightly curved ante- 

 medial (?) line; a very indistinct medial line, forming the 

 proximal boundary of the dark shade ; postmedial line 

 almost obsolete; subterminal pale (bordering the dark shade), 

 waved and minutely dentate, strongly bent outward before E^ 

 and behind E^ ; costa with two or three large, bright 

 ochraceous spots ; terminal black spots very distinct. Hind 

 wing brownish-fuscous, paler at base, with a slight dark 

 discal lunule and traces of postmedial and subterminal lines. 

 Underside buff-brown ; the hind wing whiter except towards 

 termen, with large dark discal spot and minutely dentate 

 postmedial and subterminal lines ; fore wing with traces of 

 a pale subterminal line on the anterior half. 



9 . A normal HydriUodes 9 '. fore wing with the distal 

 third very dark, the proximal two-thirds of wing with some 

 strongly contrasting pale shades but unusually suffused with 

 fuscous ; generally with a large dark discal spot. Hind wing 

 and underside as in the cf. 



Mt. Dulit, 3000 feet— 1 cf ; Perak, 2000-3500 feet 

 (W. Doherty)— 5 c^. 1 9 ; Kedah Peak 3200 feet, December, 

 1915 — 2 (^f , 4 9- The last named specimens have been 

 submitted to us by the Eaffles Museum, by whose gfenerosity 

 half the specimens will become the property of Mr. J. J. 

 Joicey. A 9 from Mt. Penrissen, 4400 feet, is placed here 

 provisionally. 



On account of the great difficulty of this group and the 

 frequency of racial variation it has seemed wiser to select 

 one of the five Perak cf as the type, rather than the single cf 

 from Mt. Dulit. 



106. Hydeilloder poiensis sp. n. 



Cf, 26 mm.; 9. 22-24 mm. 



cf. Structure about as in pterota, but fore wing much 

 darker, more purplish-fuscous. Hind wing slightly greyer in 

 tone, with a rather better-developed postmedial line, w^hich 

 is further removed from the discal spot than in pterota ; the 

 difference in this line ifj even more marked beneath, where, 



