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GYRIONA. 21 
6474, Gyrtona divitalis. (Plate CLXXX. fig. 1.) 
Gyrtona divitalis, Wik. xxvii. 91 (1868). 
Gyrtona conglobalis, Wik. xxvii. 92 (1863). 
Suvoca sarawakana, Wk. xxx. 996 (1864). 
Gyrtona yucca, Swinh, A. M. N. H. (6) x11. p. 264 (1893). 
Head and thorax red-brown mixed with some grey ;_pectus 
whitish ; tarsi ringed with white ; abdomen grey-brown, the ventral 
surface whitish. Fore wing red-brown with a purplish grey gloss 
especially before and beyond the postmedial line on inner half; 
subbasal line represented by two slight dark stria from costa; 
antemedial line double, curved and slightly waved; clayiform and 
orbicular represented by ridges of raised blackish scales ; reniform 
slightly detined by black and with point of raised black scales in 
centre ; medial line blackish, curved and slightly sinuous; postmedial 
line treble, minutely waved, incurved below costa and excurved at 
middle ; subterminal line grey defined on outer side by dark brown, 
minutely waved, excurved below vein 7 and at middle; a terminal 
series of small blackish spots. Hind wing fuscous brown, thie 
interspaces of basal half somewhat hyaline; cilia with fine whitish 
line at base and whitish tips. 
Hab, Anpamans, 1 9 ; SeLancor, Semangho (Lobinson), 1 ¢ ; 
Srnearore (Ltidley), 10 g,15 2 type yucca; Borneo, Sarawak 
(Wallace), 3 3,6 2, type and types conglobalis and sarawakana. 
xp. 16-20 millim, 
6475. Gyrtona plumbisparsa. (Plate CLXXX. fig, 2. 
598 
Gyrtona plumbisparsa, Hmpsn. A. M. N. H. (7) xvi. p. 538 (1909). 
2, Head, thorax, and abdomen dark red-brown ; tarsi with pale 
rings; abdomen with the slight dorsal crests black. Fore wing 
dark red-brown suffused with leaden silvery scales especially on 
inner and terminal areas ; traces of two curyed subbasal lines from 
costa to vein1 ; three indistinct waved antemedial lines with striz 
of raised black scales beyond them in and below cell; an indistinct 
waved brown medial line; two slight obliquely placed black 
discoidal striae; postmedial line double, sinuous, bent outwards 
below costa, excurved to vein 4, then retracted to below end of 
cell and with traces of a waved brown line beyond it; subterminal 
line dark defined by leaden silvery suffusion on inner side and with 
dark patch before it on costal area, excurved at vein 7 and middle ; 
a series of small dark spots just before termen. Hind wing dark 
red-brown, the cilia silvery at tips; the underside paler. 
Hab, Sixatm, 1 Q type. Lup. 24 millim. 
6476. Gyrtona polionota. (Plate CLXXX. fig. 3. 
Gyrtona polionota, Hmpsn. A. M. N. H. (7) xvi. p. 089 (1905). 
@. Head and thorax pale red-brown suffused with grey ; 
abdomen grey, the ventral surface white. Fore wing red-brown 
