382 
GYRTONA. By M. Gaede. 
oxyptero. 
singaporen- 
sis. 
nama. 
delogramma. 
exsicca. 
scotialis. 
scotioides. 
ochreogra- 
plia. 
phaeozona. 
divitalis. 
yucca. 
plumbi- 
sparsa. 
G. oxyptera limps. (35 i). Lighter greyish brown, the reniform macula not so large as in hylusalis. 
The ring-macnla represented by a dot of black scales. Reniform macula narrow, edged with dark, with a dark 
centre. The dark median line slightly excurved in front, the interior and exterior lines indiscernible. Sub¬ 
marginal line grey. Hindwing dark brownish ochreous. The forewing may also be blackish between the in¬ 
terior and median lines: singaporensis Strd. 22—24 mm. Singapore. 
G. nama Swh. (35 i) is recognizable by the white V-mark at the apex of the forewing. Forewing lilac 
greyish brown. The ring-macula and coniform macula are black dots. Reniform macula composed of black 
scales with white streaks and dots. Median line fine, dark, with 2 angles outward. Exterior line of black scale- 
spots, excurved behind the cell, then very obliquely inward. Hindwing whitish hyaline, smoky brown at the 
margin. 32 mm. One couple from North India. 
G. delogramma E. Prout. Forewing brownish white and lilac grey, bluish grey between the exterior 
and submarginal lines, and slightly so also at the base. Transverse lines double, dark, with a lighter filling. 
Interior line vertical, inward below the middle, the indistinct median line extra-angular in the cell. Reniform 
macula broadly pale, with a conspicuous black spot at the lower angle inside. Exterior line distinct, its exterior 
branch composed of black spots, more undulate than in nama. Submarginal line of black notches. Hindwing 
as in nama. 25 mm. 1 $ from Bum. 
G. exsicca Swh. (31 c). Forewing lilac brown, with 4 or 5 indistinct dark undulate transverse lines at 
almost equal distances. The first has a black spot at the inner margin. The last, the submarginal line, is more 
undulate, this line and the two next lines are black, very fine and somewhat interrupted. The first of these 
has an oblong black spot at the inner margin. 2 or 3 black dots in the centre of the wing. Hindwing pale grey, 
diaphanous, darker at the margin. 24 mm. India, Ceylon. 
G. scotialis Hmps. Forewing copper-brown, the marking black and lead-coloured. Interior line double, 
filled with grey, with the usual black scales outside. Median line fine, dark brown, extra-angular in the sub¬ 
median fold. A double black line traversing the cross-vein is connected with a similar exterior line at the costal 
margin and between veins 3 and 2, both filled with lead-colour. Two submarginal bands behind it, edged out¬ 
side only with black dots. Hindwing brownish white, darker at the margin. 20 mm. 2 $ known from the 
Salomons. 
G. scotioides E. Prout resembles the preceding species. Forewing brown and lilac grey, somewhat 
yellowish red at the base and behind the exterior line. The latter is double, black, obliquely outward. Median 
line fine, brown, arising near the interior line, then excurved, often extinct. Reniform macula pale, a dark 
luna in the middle, sometimes brown. The undulate dark exterior line double, excurved behind the cell, 2 
parallel brown lines behind it. Sidmiarginal line pale. Hindwing as in scotialis. 19—20 mm. Common in 
Ceram. 
G. ochreographa Hmps. (35 i). Forewing dark brown with a lilac gloss. Interior line double, fine, un¬ 
dulate. Coniform macula and ring-macula indicated by black scales, brownish ochreous before it. Reniform 
macula edged with black scales. Median line extra-angular in and below the cell. Exterior line double, filled 
with brownish ochreous, 2 submarginal rows of blacks dots behind it. Hindwing hyaline at the base, brownish 
at the margin. 24 mm. Singapore. 
G. phaeozona Hmps. (35 k) is somewhat more variegated than the allied species. Forewing reddish 
brown. A black spot at the base. Interior line light, obliquely outward, straight. Behind it an oblique black 
band and 2 median lines. Reniform macula red-brown. Exterior line light, in dark surroundings, excurved in 
the middle like the grey indistinct submarginal line. Hindwing somewhat diaphanous, brownish at the margin. 
20 mm. One couple known from India. 
G. divitalis Wkr. (= conglobalis Wkr., sarawakana Wkr.) (35 k). Forewing light red-brown, with a 
lilac tinge on it, especially at the exterior line at the inner margin. Interior line double, undulate, bent. Coni¬ 
form macula and ring-macula indicated by black scales. The similarly indistinct reniform macula edged with 
black, with a dark centre. Median line blackish, bent, introangular in the middle. Exterior line threefold, 
extra-angular in the middle. Submarginal line grey. Hindwing brown, somewhat hyaline at the base. 16 to 
20 mm. Andamans, Selangor, Borneo. — yucca Swh. is the same species according to Hampson, but according 
to Swinhoe it is much smaller and differently marked compared with the figure of divitalis. There exists un¬ 
fortunately no figure of yucca. 
G. plumbisparsa Hmps. (36 b). Forewing dark red-brown, with a silvery tinge on it at the inner margin 
and distal margin. Interior line threefold, indistinct like the undulate brown median line. Two oblique pale 
streaks at the cross-vein. Exterior line double, bent up again to the lower cell-end, another undulate brown 
line behind it. The silvery grey submarginal line is the most distinct of all the markings. Hindwing dark brown. 
24 mm. 1 $ known from Sikkim. 
