PYRATlSTIDiE. 
115 
whitish. Forewings 11 running into 12; white irregularly 
sprinkled dark fuscous; basal area sometimes variably spotted 
dark fuscous and orange ; first line white, rather curved, hardly 
defined anteriorly, followed by an ochreous-orange fascia irrorated 
dark fuscous ; second line excurved from costa to fold, white, 
irregularly edged dark fuscous posteriorly, preceded by a narrow 
ochreous-orange fascia irrorated dark fuscous; between these 
fasciae several variable blackish spots in disc and one on costa; an 
ochreous-orange terminal fascia irrorated dark fuscous ; cilia white, 
two fine lines and tips dark grey. Hindwings 4 and 5 stalked ; 
whitish irrorated grey, appearing pale greyish ; a faint whitish 
grey-erlged curved line near termen throughout; cilia whitish, two 
indistinct greyish lines. 
Assam, Khasi Hills, June, September ; 5 ex. Described here 
because of its near superficial resemblance to Diptychophora euzo- 
nellci Hamps. occurring in the same region ; apart from the 
characteristic difference in neuration of hindwings, the termen of 
forewings has no indentation, nor are there any black terminal dots. 
PYRAUSTIDiE. 
MYSTXCOMIMA, n. g. 
Head smooth ; ocelli posterior ; tongue developed. Antennae |, 
3 minutely ciliated, scape short. Labial palpi short, curved, 
obliquely ascending, second joint somewhat thickened with scales, 
terminal joint very short, pointed. Maxillary palpi short, sub¬ 
ascending, loosely scaled, pointed. Posterior tibiae with middle- 
spurs nearly equal. Forewings termen abruptly sinuate beneath 
apex; lb simple, 2 from |, 3 from angle, 3-5 rather approximated, 
equidistant, 7 remote, 8 and 9 coincident, 11 running into 12. 
Hindwings without cubital pecten; 2 from |, 3 and 4 connate from 
angle, 5 somewhat approximated, 6 and 7 connate, 7 anastomosing 
with 8 to middle. 
Allied to Conogethes. This singular genus is also described here 
because in many respects it strongly recalls Diptychophora ; the 
curiously modified form of the apex and termen of forewings, with 
the marking and colouring of these parts, the small size (exceptional 
for a Pyraustid), and the unexpected structure of vein 11 (possibly 
due to the strain involved in the transformation of the apex) all 
point in this direction. Notwithstanding these features, the struc¬ 
ture of the palpi, and the absence of cubital pecten must be held 
to prove that the genus is truly Pyraustid. The coincidence of 
veins 8 and 9 is abnormal in either family, and is perhaps also 
attributable to the modification of apex. 
Mysticomima desmoteria, n, sp. 
3 5- 9-11 mm. Head, thorax orange-yellow. Palpi light 
yellowish. Abdomen dark grey. Forewings triangular, costa 
abruptly bent downwards near apex, termen sinuate-indented 
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