T.YONKTIAD^. 303 



median bar of whitisli snfTusion on hack. Forewinofs rathor narrow, 

 f ornion cxtremnly obliqiiclj' rounded ; brown, darker ])ostcriorly, 

 costal edge dark fuscous; white streaks from dorsum at base and 4, 

 unit ing in a spot on costa at | ; a short very obli(iue white strigula 

 from costa before middle; two very ol)lique fine white strigse from costa 

 before middle, first becoming yellow-ochrcous posteriorly, both 

 terminated at a white bar in costal cilia before apex ; a rather thick 

 white slightly upcurved streak from fold beyond its middle to middle 

 of first striga : a small round dark fuscous apical spot : cilia whitish, 

 basal third suffused brown mixed dark fuscous, a dark fuscous 

 snbapical shade. Hindwings grey ; cilia light grey. 



Fltf, Lautoka, in the mountains, April {Greenwood) ; 1 ex. 

 (Ih-it. Mus.). 



/ DIACHALA.STIS,n. g. 



Head densely rough-haired ; ocelli posterior ; tongue obsolete. 

 Antennce |, in S simple, basal joint rather stout, without pecten. 

 Labial palpi moderately long, porrected, second joint rough-scaled 

 towards apex above and beneath, terminal joint as long as second, 

 thickenod with scales and transversely compressed, obtuse. 

 ]\raxillary palpi several-jointed, folded, loosely scaled. Posterior 

 tiliifE with long fine hairs above and beneath. ForcAvings 2 from 

 angle, 7 to costa, 11 frora^towards base. Hindwings 1, elongate- 

 ovate, cilia I ; 2 from middle of cell, 3 absent, cell open between 4 

 and 5, 5 and 6 short-stalked, 6 almost to apex, 7 rather approxi- 

 mated. 



Allied to Hectacma. 



Diachalastis tetraglossa, n. sp. 



(S . 8 mm. Head, palpi white. Antennte whitish, on apical | 

 three dark fuscous bands and a ring beneath uppermost. Thorax 

 ochreous, patagia whitish towards apex. Forewings elongate, 

 termen very obliquely rounded ; ochreous ; an inwards-oblique streak 

 of whitish suffusion crossing disc before middle ; a very fine dark 

 fuscous marginal line round posterior half of costa and upper part 

 of termen, cut by two extremely oblique fine white striguke towards 

 f ; an indistinct transverse streak of M'hitish suffusion at i, marked 

 with four irregular small longitudinal grey dashes : cilia whitish- 

 ocbreous, round apex a fine fuscous subbasal line. Hindwings 

 light grcj' ; cilia whitish-grey. 



Fiji, l.autoka, January (Greemvood) ; 1 ex. (Brit. Mus.). 



Hectacma placens, n. sp. 



d! . 10 mm. Head, palpi, thorax white. Forewings rather narrow, 

 termen very obliquely ronnded ; yellow-ochreous ; three suffused white 

 fascia? angulatedin middle, towards costa blackish-edged, first basal, 

 third median ; a fourth fascia indicated bj^ undefined suffusion on 

 costa and tornus and a transverse mark in disc ; a fifth fascia across 



