88 Transactions. — Zoology. 
25. Scop. ergatis, n. sp. 
Female,—18-17 mm. Head, palpi, and thorax fuscous or fuscous-grey, 
slightly mixed with grey-whitish ; palpi 24, basal joint white. Antenne 
dark fuscous. Abdomen light grey. Legs whitish, irrorated with fuscous. 
Forewings elongate, tolerably oblong, costa almost straight, apex obtuse, 
hindmargin straight, rather oblique; light fuscous, thinly and irregularly 
irrorated with whitish and darker fuscous: first line obscurely whitish, 
posteriorly rather broadly and suffusedly dark-margined, strongly curved ; 
orbicular and claviform obsolete; reniform subquadrate, cloudy, dark 
fuscous; second line whitish, anteriorly dark-margined, rectilinear, obtusely 
angulated above middle; subterminal line obsolete: cilia light fuscous 
mixed with whitish. Hindwings 14, light grey or fuscous-grey, rather | 
darker posteriorly ; cilia fuscous-whitish, with a fuscous basal lino. 
Allied to S. hemicycla, which it resembles in form, but quite differently 
marked. 
Castle Hill (8,000 feet), on grassy slopes in January; two specimens. 
26. Scop. critica, n. sp. i 
Male, female.—18-151 mm. Head and thorax black, irregularly mixed 
with white, and with a few yellow scales. Palpi 24, black, apex and basal 
joint white. Antenne blackish, in male pubescent; ciliations 1. Abdomen 
dark fuscous-grey. Legs white, irrorated with dark fuscous, tibiæ and tarsi 
banded with dark fuscous. Forewings elongate, somewhat triangular, costa 
hardly arched, apex rounded, hindmargin obliquely rounded ; fuscous-grey, 
mixed with blackish, median space irregularly irrorated with white ; — 
veins and some posterior branches streaked with ochreous-yellow ; à while 
streak from first line near costa to near inner margin at 4, connected with 
middle of base by a white line; first line rather strong, white, scarcely 
indented but angulated below middle, posteriorly blackish-margined, forming 
an oblique suboblong black spot on costa, 
which includes orbicular ; clavi- 
form broadly linear, black, touchin 
g first line; reniform 8-shaped, black- 
connected with costa by a dark spot; second line distinct, 
white, anteriorly dark-margined; terminal space wholly dark, except cloudy 
white subterminal line, which is interrupted above middle, not touching 
second line; cilia fuscous-grey, with a dark fuscous line, tips spotted with 
white. Hindwings 14, rather dark fuscous-grey, becoming darker posteriorly; 
cilia grey, with a dark grey line, tips whitish 
ish, 
Readily recognized by the intensity of marking, yellowish streaks on 
veins, reniform half white 
and half yellow, angulated first line, and pubescent 
antenne of male. 
Arthur' Pass (8 
000 feet, and one specimen at 1,500), in January; 
common, 
