174 GEOMETRIDA, 
Suc. II. (Achrosis). Fore wing with the outer margin excurved 
/ at middle. 
| 3159.. Hypochrosis pyrrhularia, Guen. Phal. ii. p. 5839; GC & S. 
no. 37038. 
' Pagrasa instabilata, Wik. Cat. xxiv, p. 1086; Butl. Ill. Het. vi, 
DLO igs 7. 
3. Grey; the head, thorax, and abdomen irrorated and spotted 
with black. Fore wing irrorated with black to beyond middle ; 
some black spots at base ; a band of black spots just beyond middle, 
angled below the costa; a submarginal black spot on costa and 
double series towards inner margin; outer area reddish. Hind 
wing with the inner area irrorated with black, and with submar- 
ginal double line. Underside with the apical area of fore wing 
bright yellow. 
Hab. Sikhim; Assam. wp. 38 millim. 
j 
3160. Hypochrosis quadraria, Warr. P. Z. S. 1898, p. 409. 
2. Ochreous grey. Fore wing suffused with vinous; ante- 
and postmedial lines each represented by an oblique black spot on 
costa and two spots above inner margin. Hind wing orange, with 
dark spots above anal angle. Underside orange; fore wing with 
the apical area vinous. 
Hab. Bhutan; Khasis. Hap. 42 millim. 
Szcr. III. Fore wing with the outer margin straight from apex 
to vein 3, then excised to outer angle. 
3161.’Hypochrosis rufescens, Buti. A. M. N. H. (5) vi, p. 224; ad. 
Ili. Het. vi, pl. 119, fig. 6; C. § S. no. 3704. 
3. Greyish vinous; palpi blackish. Fore wing with outwardly 
oblique antemedial and inwardly oblique submarginal yellow lines 
not reaching costa; large black medial and postmedial spots on 
costa; outer area suffused with fuscous. Hind wing witb sub- 
marginal yellow line from vein 4 to inner margin. Underside 
with the costa and outer area of fore wing bright red. 
Hab. Sikhim. Hap. 40 millim. 
Genus PRIONIA. 
“Prionia, Hiibn. Zutr. iv, p. 40 (1832). 
Osicerda, Wik. Cat. xxiv, p. 1085 (1862). 
Isnisea, Wik. Cat. xxvi, p. 1765 (1862). 
Celesdera, Wik. Cat. xxvi, p. 1749 (1862). 
Zomia, Moore, P. Z. S. 1867, p. 650. 
Amorphozancle, Warr. P, Z. S. 1898, p. 408. 
Type, P. squalidaria, Hubn. 
Range. Japan; throughout, India, Ceylon, and Burma; Anda- 
mans; Java; Borneo. 
Palpi slender and not reaching beyond the frons; antenne 
bipectinated in both sexes to near apex, the branches longer in the 
male than in the female ; hind tibiz not dilated. Fore wing pro- 
