40 Transactions. — Zoology. 



towards extremities suffused with bright ochreous-orartge, its upper margin 

 rather deeply indented at -J-, thence somewhat dilated, and again attenuated 

 to apex : cilia reddish-ochreous brown, beneath anal angle ochreous-whitish 

 suffused with orange. Hindwings dark grey ; cilia grey, extreme base pale. 



A very distinct and handsome species, in form of wing very closely 

 approaching the preceding ; in colour it is approached by the much smaller 

 and narrower-winged Cremno genes oxyina, but the resemblance is analogous 

 merely, and due in each case to protective imitation of the colouring of a 

 dead beech-leaf. 



At the head of Lake Wakatipu, in December ; two specimens from Fagns 

 solandri. 



44. (Ec. oporaa, n. sp. 



Media, alis ant. saturate flavis, linea costse basali nigrescenti, interdum 

 punctis disci tribus rufis ; post, griseis ; thorace flavo. 



Male, female. — 18-20 mm. Head and thorax deep ochreous-yellow. 

 Palpi ochreous-yellow, lower f of second joint externally suffused with dark 

 fuscous. Antenna grey. Abdomen grey. Anterior legs dark fuscous ; 

 middle and posterior legs ochreous-whitish. Forewings moderate, costa 

 moderately arched, apex rounded, hindmargin oblique, slightly rounded ; 

 deep yellow, sometimes suffused with reddish-ochreous towards middle of 

 inner margin, anal angle, and apex ; a short slender blackish streak along 

 base of costa ; sometimes a reddish-fuscous dot in disc before middle, a 

 second beyond middle, and a third on fold directly beneath first, but these 

 are usuaUy quite obsolete, especially the first : cilia yellow, sometimes 

 mixed with reddish-ochreous. Hindwings grey, darker posteriorly; cilia 

 grey. 



Larger and deeper yellow than any of the other yellow species, from all 

 of which it is at once separated by the wholly yellow thorax. 



Castle Hill (2,500 feet), in January; common amongst Fagus solandri. 

 45. (Ec. horma, n. sp. 



Minor, alis ant. albido-ochreis, flavido-suffusis, striga costas basali 

 nigrescenti, signo plicge, altero anguli analis, punctisque costae duobus 

 obscuris saturate fuscis ; post, griseis ; thorace antice saturate fusco, postice 

 flavido. 



Male, female. — 13^-15 mm. Head light yellowish-ochreous. Palpi 

 light yellowish-ochreous, basal half of both joints finely irrorated externally 

 with dark fuscous. Antennae in male dark fuscous, in female whitish- 

 ochreous annulated with dark fuscous. Thorax light yellowish-ochreous, 

 anterior half suffused with dark fuscous. Abdomen grey, apex whitish- 

 ochreous. Anterior legs dark fuscous ; middle legs whitish- ochreous 

 irrorated with dark fuscous, except in middle of tibiae and at apex of joints ; 



