LYONETIADiE. 
401 
apex acutely produced; pale yellow; a rather dark fuscous pointed 
streak along basal 1 of costa ; larger posterior half of wing rather 
dark fuscous, edge slightly outwards-oblique from costa, marked 
with some black scales and two or three small purple-metallic 
spots : cilia grey. Hindwings grey ; cilia light grey. 
Assam, Khasis, March, May, November; 7 ex. 
Opogona ischnoscia, n. sp. 
<J . 17 mm. Head smooth, dark fuscous, fillet and face pale 
ochreous-yellowish. Palpi whitish, a blackish streak externally. 
Thorax' light ochreous-yellowish. Forewings light ochreous-yel¬ 
lowish ; a dark grey streak on basal sixth of costa, followed by 
some grey sprinkling to middle; a group of scattered grey scales in 
disc beyond middle ; an irregular dark grey spot on dorsum at 
origin of cilia, some scattered grey scales beyond this, and a 
stronger patch of grey irroration towards apex : cilia light ochreous- 
yellowish. Hindwings grey ; cilia pale ochreous-yellowish. 
Transvaal, Pretoria, February ; 1 ex. (Coll. Janse), 
Oinophila pyrometalla, n. sp. 
<3 . 10 mm. Head brassy-metallic, hairs of crown dull orange. 
Palpi whitish, terminal joint blackish. Thorax dull orange, 
teguhe brassy-metallic, shoulders blackish. Forewings lanceolate, 
acute; dull orange; markings shining brassy-metallic-grey, 
darkest-tinged on costa ; a median longitudinal streak rising from 
a black spot on base of costa and terminating in an irregular apical 
blotch, basal third expanded to fold, semioval spots on costa about 
^ and | nearly or quite touching this streak ; a semioval blotch on 
middle of dorsum, its anterior end blackish ; a spot on tornus, 
more or less confluent with apical blotch : cilia grey. Hindwings 
rather dark grey ; cilia grey. 
Transvaal, Woodbush, 5500 feet, January ; 2 ex. (type Coll. 
Janse). Allied to Utrsota from Seychelles. 
Decadarchis malthaca, n. sp. 
2 . 9 mm. Head white. Palpi white, beneath with long rough 
hairscales. Thorax white, shoulders slightly sprinkled fuscous. 
Forewings white ; markings formed by fuscous and dark fuscous 
irroration, with an ochreous tinge; base of costa dark fuscous ; a 
rather oblique fascia from costa before | terminating in a rounded 
blotch in disc; a somewhat oblique triangular blotch on costa 
before middle; an irregular ill-defined blotch towards tornus ; a 
rather broad undefined fascia beyond this, with a few scattered 
dark scales between them, and a narrow transverse fascia before 
apex : cilia white, somewhat sprinkled dark fuscous, round apex 
tips dark fuscous. Hindwings light grey ; cilia ochreous-whitish, 
at apex tips grey. 
New Hebrides, Ambrym 1., June ( Buxton ); 1 ex. (Brit. Mas.). 
vol. hi. — June 1928. 2 d 
