PETRINIA. 323 
Genus PETRINIA. mead 
ype: 
Petrinia, Wik. Proc. Nat, Hist. Soc. Glasg. i. p. 347 (1869) ...... lignosa. 
Proboscis fully developed ; palpi upturned, the 2nd joint reaching to about 
middle of frons and moderately scaled, the 3rd moderate ; frons smooth ; eyes 
large, round ; antennx of male ciliated ; thorax clothed almost entirely with 
scales, the metathorax with spreading crest; tibiz nearly smoothly scaled ; ab- 
domen with dorsal crests on basal segments. Fore wing with the apex rounded, 
the termen strongly curved and not crenulate; veins 3 and 5 from near angle 
of ceil; 6 from below upper angle; 7 from angle; 8, 9, 10 stalked; 11 from 
cell. Hind wing with veins 3, 4 from angle of cell; 5 nearly fully developed 
from well above angle; 6, 7 from upper angle; 8 anastomosing with the cell 
near base only. 
6628. Petrinia lignosa. 
Petrinia lignosa, Wik. Proc, Nat. Hist. Soc. Glasg. i. p. 848 (1869). 
do. Head, thorax, and abdomen brownish ochreous largely mixed 
with black-brown, the teguls with black line near tips, the patagia 
with oblique black bars near tips, the tarsi ringed with whitish. 
Fore wing ochreous suffused with rufous and irrorated with black 
on basal half, the costa and apical area black-brown mixed with 
some grey; an oblique dark shade from subcostal nervure before 
middje to inner margin near base, defined above by a curved 
grey streak with fine black streak above it, its outer edge angled 
inwards in cell and on vein 1; aslight black streak below costa 
from this antemedial shade to beyond middle where it is curved 
round and becomes the faint minutely dentate postmedial line, 
slightly angled inwards at discal and submedian folds and double 
Fig. 117.—Petrinia lignosa, 3. }. 
filled in with whitish on inner area; a blackish line from costa 
beyond middle slightly detined by whitish on outer side and on 
inner side also below costa and at lower extremity, excurved below 
apex to near termen and ending on postmedial line at submedian 
fold; aslight whitish subterminal line defined on inner side by 
black-brown, angled inwards below costa, then excurved to near 
termen; a slight punctiform dark terminal line; cilia dark brown 
with a fine whitish line at base. Hind wing dark cupreous brown 
with a greyish tinge; cilia whitish mixed with brown ; the under- 
side whitish tinged with brown and slightly irrorated with black, a 
dark discoidal lunule with striga above it from costa, sinuous post- 
medial line bent outwards below costa, and terminal series of points. 
x2 
