H8 Transactions.— Zoology. 



25. Scop, ergatis, n. sp. 



Female.— 13-17 mm. Head, palpi, and thorax fuscous or fuscous-grey, 

 slightly mixed with grey-whitish ; palpi 2-J, hasal joint white. Antennas 

 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 1^, light grey or fuscous-grey, rather 

 darker posteriorly ; cilia fuscous-whitish, with a fuscous basal line. 



Allied to S. hemicycla, which it resembles in form, but quite differently 

 marked. 



Castle Hill (3,000 feet), on grassy slopes in January; two specimens. 

 26. Scop, critica, n. sp. 



Male, female. — 13-15^ mm. Head and thorax black, irregularly mixed 

 with white, and with a few yellow scales. Palpi 2-J , black, apex and basal 

 joint white. Antenna? blackish, in male pubescent ; ciliations 1. Abdomen 

 dark fuscous-grey. Legs white, irrorated with dark fuscous, tibiae 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 ; main 

 veins and some posterior branches streaked with ochreous-yellow ; a white 

 streak from first line near costa to near inner margin at -J, 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, touching first line ; reniform 8-shaped, black- 

 margined but incompletely beneath, upper half clear white, lower obscure, 

 ochreous-yellow, 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 lit, rather dark fuscous-grey, becoming darker posteriorly; 

 cilia grey, with a dark grey line, tips whitish. 



Keadily recognized by the intensity of marking, yellowish streaks on 

 veins, reniform half white and half yellow, angulated first line, and pubescent 

 antennae of male. 



Arthur's Pass (3,000 feet, and one specimen at 1,500), in January; 

 common. 



