P0TAM0PH0RA. 
93 - 
Genus POTAMOPHORA. 
Potamophora, Gueu. Noct. iii. p. 122 (1852) 
Type. 
manlia, Cram., 
Potamopliora hemiphsea, n. sp. 
cJ. Head and thorax chocolate-brown, a few of the hairs 
tipped with white ; antennae with the shaft pale crimson in 
front ; palpi irrorated with white, especially the 3rd joint 
which is tipped with rufous ; fore tibiae irrorated with white, 
the hind tibiae with white spot at base ; abdomen chocolate- 
brown, dorsally tinged with grey except the hair at base of 
dorsum, the ventral surface redder brown. Fore wing 
chocolate-brown, the base, a fascia along median nervure and 
the area beyond the postmedial line suffused with purple-grey 
and irrorated with a few white scales, the terminal area 
striated with brown ; traces of a brown antemedial line, bent 
inwards in the cell and excurved above inner margin ; orbi- 
cular and reniform rufous defined by dark brown, the former 
round with some rufous suffusion above it on costal area, the 
latter with two dark points in centre ; traces of an oblique 
dark medial line with slight rufous marks on its outer side at 
submedian fold and inner margin ; postmedial line oblique, 
dark, interrupted between veins 4 and 3, some rufous beyond 
it below vein 3 and obliquely placed dark points on veins 4 
and 3 ; a chocolate-brown shade from apical part of costa to 
submedian fold, its inner edge angled inwards at discal fold 
and vein 3, its outer edge obliquely incurved from apex to 
below vein 4 where it is angled outwards. Hind wing choco- 
late-brown, the tornal area irrorated with purple-grey and 
striated with brown ; a silvery-blue postmedial band from 
costa to submedian fold, its inner edge slightly excurved 
below vein 6 and its outer edge excurved at middle ; a slight 
rufous bar above tornus. Underside reddish brown ; fore 
wing with purplish white postmedial somewhat sinuous line 
from below costa to vein 5 then forming small spots to vein 2 
where it terminates ; hind wing with sinuous maculate 
whitish postmedial line. 
Fore wing without the greyish at base and along median 
nervure, the reniform with striga in centre, the postmedial 
line not interrupted, hind wing with the silvery-blue band 
regularly curved, no rufous striga above tornus ; underside 
of hind whig with the postmedial line minutely waved. 
Hab. Ceylon ( Templeton ), 1 <$ ; Singapore {Ridley), 5 $ 
type ; Sumatra {de Niceville), 1 $. Exp. $ 72-80, $ 90 
millim. 
