BILLETIA. By M. Gaede. 
611 
0. geminata sp. n. (79 f) may be the of plagiosa. On the forewing the interior line is double, more geminata. 
distinct to the inner margin. The double exterior line is uniformly finely notched. Its interior branch forms in 
the submedian fold a small semicircle proximad around a black dot. Behind it a broader dark nebulous line 
and an interrupted dark marginal line. 40 mm. Talesea, New Britain. Type in the Tring Museum. 
0. trilineafa B.-Bak. is probably similar to geminata. Forewing pale reddish-grey. A double red-brown trilineata. 
basal line is traceable. Median line double, its branches distantly separated, somewhat oblique. Exterior line 
broad, oblique, red-brown. Before the broad curved submarginal line a fine parallel line. The dentate marginal 
line is outside white. Renifonn macula ochreous. Hindwing reddish-brown. 44 mm. New Guinea, 2000 m. 
0. parallelistriga Rothsch. Body cinnamon-brown. Forewing pinkish cinnamon brown with some fine paralleli- 
brown undulate lines and dots. A brown radial line from the base to the centre of the distal margin. A striga. 
white stigma and a brown median line, strongly angled where it meets the radial line. Hindwing dark violettish- 
brown. 42 mm. New Guinea. 
0. mediofasciata Rothsch. Body cinnamon-brown. Forewing violettish brown, cross-vein pale brown mediofusci- 
An interior and exterior double line, before the latter a dark irregular line. Radial line thick, chocolate. Hindwing ala - 
red-brown. £ 36 mm. New Guinea. 
0. albidilinea sp. n. (79 g). Scheme of marking similar to plagiosa, but the lines are whitish yellow, albidilinea. 
more distinct. Subbasal line composed of 2 parts, interior line slightly bent. The brown line behind the cross¬ 
vein is almost straight. Exterior line at the inner margin proximally removed. Before the submarginal line 
at the costal margin a light spot. Hindwing red-brown. 38 mm. New Guinea, 700 m. Type in the British 
Museum. 
0. dinawa B.-Bak. (80 c). Body and forewing yellow. At the costal margin near the base some black dinawa. 
dots. Before the interior line at the inner margin light red-brown. From behind the centre of the costal margin 
to the anal angle a partition-line. Before if in the middle whitish-yellow, less intensely so as far as the inner 
margin. Behind it reddish-brown excepting the apex. Hindwing reddish-brown. 40—50 mm. New Guinea. 
0. pratti B.-Bak. Similar to dinawa. Apical area greyish-brown, its interior edge curved from the centre pratti. 
of the costal margin to the distal margin at vein 4. The light stripe below it pale greyish-white instead of 
yellowish-white. Hindwing similar to dinawa. £ 42 mm. New Guinea. 
0. hampsoni B.-Bak. (80 b). Thorax in the middle red-brown, laterally lavender grey. Forewing red- hampsoni. 
brown, dusted with ochre. From the base of vein 2 obliquely inwards to the costal margin a light line. Renifonn 
macula oval. Around the latter the exterior line, red-brown, double. Behind it a white and a lavender grey 
oblique line. Apex light ochreous brown. Hindwing red-brown. B 45—48 mm. New Guinea. 
The 3 following species strongly differ from each other and from 
the preceding species. 
0. leucosticta J.& T. (80 g). Forewing ochreous brown with a feeble white basal line. White rings leucosticta. 
form the interior line below the cell. An exterior row of white streaks with black dots and a row of black 
submarginal dots. Hindwing pale red-brown. 44 48 mm. New Guinea, 1200 m. 
0. pseudolibatrix Rothsch. Distal margin of forewing similarly notched as the palaearctic Noctuid pseudoliba- 
Scoliopteryx libatrix (Vol. Ill, pi. 52 n). Forewing wood-brown and yellow, at the inner margin in the interior irix - 
half reddish-brown. Interior and exterior lines dark, double, filled with light; before the interior line traces 
of some more dark spots and lines. Reniform macula yellowish-grey; behind it a dark line, submarginal line 
notched, white. Hindwing smoke-brown. 40 mm. New Guinea, up to heights of 1200 m. 
0. plusiotis Rothsch. Forewing pointed, distal margin scarcely angled. Marking quite different, plusiotis. 
Forewing reddish-yellow, the base chocolate. From y 3 inner margin to the cell a notched silvery line. Median 
band oblique, dark brown, at the inner margin inside red-brown. Exterior line dark greyish-brown, in the 
centre excurved, submarginal line red-brown, notched, both inside edged with light. Hindwing red-brown, 
at the anal angle a silvery streak. $ 50, $ 45 mm. New Guinea, up to heights of 1200 m. 
Note: To the germs Omichlis presumably belongs also Togarishachia argentopicta Mats., as far as can be judged from 
the figure in which, however, the distal margin is somewhat different to the right and left, because the fringes are damaged. 
12. Genus: ISilletia Joan. 
Ranged near Stauropus by the author, but it may be allied to Gerasana or identical with it. 
B. rubripuncta Joan. Pale greyish-yellow. On both wings above and beneath a red-brown spot at the rubripuncta. 
cross-vein. On the forewing 2 rows of spots obliquely inwards, one each beginning before and behind the apex, 
and a blackish-brown median band broader at the costal margin. Above veins 4 and 6 black marginal dot. 
On the thorax in front black dots. On the yellow abdomen, excepting the base and end, on each segment 5 
black spots, one of them in the centre beneath. Owing to this peculiarity occurring besides only in the following 
genus the species is ranged here. 52—55 mm. North-Eastern Tonkin. 
