RISOBA, 429 
to base at vein 1; antemedial line blackish, oblique, dentate ; 
orbicular represented by a small blackish spot ; the reniform with 
its centre defined by blackish and its lower part filled in with 
brown, with slight pale annulus defined by a few dark scales; an 
indistinct sinuous medial line, oblique from costa to just below the 
cell ; postmedial line defined on each side by whitish, with oblique 
dark striga from costa, strongly bent outwards and obsolescent below 
costa, then oblique and represented by a series of minute dentate 
blackish marks on the veins, the area bevond it suffused with dark 
brown between veins 6 and 1 and with minute black streaks on the 
costa ; subterminal line white defined on inner side by black-brown, 
dentate, slightly angled outwards at vein 6 and excurved at middle ; 
a series of blackish strive defined on inner side by white just before 
termen with a black-brown spot before the striga above vein 6; 
cilia chequered brown and whitish. Hind wing ochreous white 
tinged with brown, the terminal area broadly suffused with brown ; 
a terminal series of small dark spots defined by a slight waved 
whitish line; cilia chequered brown and whitish; the underside 
with dark discoidal spot and broad diffused subterminal band. 
Hab. Bornzo, 1 2 type. Hep. 40 millim. 
6773. Risoba jucunda. (Plate CLXXXV. fig. 24.) 
Diphthera jucunda, Wik. Journ. Linn. Soe., Zool. vi. p. 178 (1862) ; Swinh. 
Cat. Mus, Oxon. ii. p. 50, pl. i. f. 4. 
@. Head and-thorax white mixed with greenish blue; palpi 
with slight black marks on Ist and 2nd joints; frons and vertex of 
head with black bars; antenne ringed with black; tegule edged 
with black, the patagia with oblique black bars at middle and tips, 
the metathorax with black mixed; pectus and legs ochreous white 
and brown, the fore coxze with grey hair, the mid tibizwe suffused 
with black ; abdomen white tinged with ochreous at base, dorsally 
suffused with brown and black except the anal segments and with 
slight black segmental] lines, the ventral surface suffused with 
blackish. Fore wing greenish blue with white irroration and 
suffusion in parts; a white patch at base defined by black and with 
the sinuous black subbasal line just beyond it from costa to 
submedian fold; antemedial line black defined on inner side by 
white, dentate, angled outwards in submedian fold; a small black 
spot at middle of cell, connected by a slight streak with the 
antemedial line and touching the medial black line, which is sinuous 
from costa to lower edge of reniform, which is white with black spot 
in centre from the lower edge of which arises a convoluted black line 
defining the reniform ; from the upper edge of reniform arises a black 
line angled outwards beyond upper angle of cell, then minutely 
dentate, incurved at discal fold and below vein 4 and joining the 
postmedial line at inner margin; postmedial line black defined on 
each side by white, strongly angled outwards below costa, dentate 
below yein 5 and incuryed below vein 4, the costa beyond it with 
