96 ! Transactions.— Zoology. 
curved, irregular, bent outwards on inner margin; orbicular roundish, not 
pale, finely black-margined, separated from reniform by a round black- 
margined spot, somewhat paler and more whitish than ground colour ; 
claviform roundish, cloudy, black, detached ; reniform 8-shaped, not pale, 
black-margined ; often a clear whitish or ochreous streak from claviform 
along submedian fold to second line; sometimes a rather broad dark fuscous 
streak above submedian fold from first to second lines; second line rather 
narrow, white, dark-margined, generally suffused with ochreous towards 
submedian fold, rather abruptly bent above middle; subterminal line 
broad, very cloudy and indistinct, whitish, interrupted, generally touching 
second line; a waved whitish hindmarginal line: cilia pale greyish, with a 
dark fuscous interrupted line, basal and terminal thirds obscurely barred 
with whitish. Hindwings 14, whitish-ochreous irrorated with grey ; lunule 
and postmedian line very indistinctly darker ; a tolerably well-defined dark 
fuscous hindmarginal band; cilia whitish, with a dark grey line. 
A variable species, but generally distinguishable from its nearest allies 
by the irregular dark suffusion of the forewings, and the ochreous tinge and 
dark marginal band of the hindwings. 
Cambridge, Palmerston, Wellington, Christchurch, Castle Hill, Mount 
Hutt, and Lake Wakatipu, probably universally distributed at low levels, 
from November to March, on rock-faces, fences, ete. ; generally abundant. 
88. Scop. cataxesta, n. sp. 
Male, female.—23-27 mm. Head and thorax dark slaty-grey, somewhat 
mixed with grey-whitish. Palpi 2}, dark fuscous, slightly mixed with 
whitish, basal joint white. Antenne dark grey, ciliations $. Abdomen 
whitish-grey. Legs white, irrorated with dark fuscous, tibie and tarsi 
banded with dark fuscous. Forewings very elongate, triangular, costa 
hardly arched, apex rounded, hindmargin almost straight, slightly oblique ; 
rather dark slaty-grey, with an indigo-bluish tinge (strong in very fresh 
specimens), with fine scattered grey-whitish scales, the coalescence of which 
forms obscure first and second lines; first line hardly curved, moderately 
indented ; second line tolerably distinct on costa and inner margin ; orbi- 
cular faintly perceptible as a slightly darker suffusion ; reniform 8-shaped, 
slightly darker, lower or sometimes both halves centred with whitish ; sub- 
terminal line obscurely indicated, interrupted, not touching second line: 
cilia slaty-grey, tips paler. Hindwings 12, whitish-grey; postmedian line 
faintly indicated ; a narrow hindmarginal band suffusedly darker grey ; cilia 
white, with a grey line. 
Very obsoletely marked ; distinguished from all by the peculiar dark 
bluish-grey colouring, adapted for concealment on the bare slaty rocks of 
the mountain-range, which it exactly resembles. The same tint recurs with 
the same habits in several species of other groups. 
