24 Transactions. — Zoology. 



moderate, costa gently arched, faintly sinuate in middle, apex rounded, 

 hindmargin rather oblique, slightly rounded ; white, with sharply defined 

 black linear markings ; costa black at base, emitting a transverse streak, 

 twice deeply angulated, to inner margin at i, its inner angle connected by 

 a bar with base of inner margin ; an irregular oblique transverse streak 

 from J of costa to fold, sending a tooth inwards beneath costa and another 

 outwards above fold, apex reflexed towards base and sinuate ; a small spot 

 on inner margin beyond middle ; a short inwardly oblique streak from costa 

 beyond middle, emitting from middle of posterior edge an oblique sometimes 

 interrupted line almost to anal angle, whence proceeds from middle of 

 anterior edge a short branch obliquely downwards, and from f of posterior 

 edge a short streak obliquely upwards, almost confluent with a small spot 

 towards costa ; a somewhat crescentic transverse bar near hindmargin 

 above middle ; discal markings partially preceded by tufts of raised scales ; 

 a row of coarse black dots along hindmargin and apical third of costa : 

 cilia white, with a small black apical spot, and another in costal cilia on 

 second dot before apex. Hindwings grey, irregularly suffused with grey- 

 whitish in disc, with a dark fuscous interrupted hindmarginal line ; cilia 

 grey-whitish, with a cloudy grey line. 



A distinct and striking species. 



Dunedin, in January ; rather common on fences and at light. 

 21. Sem. epijrfianes, n. sp. 



Media, alis ant. canis, griseo-conspersis, macula basali postice angulata 

 alteraque costse magna signis nigris notata saturate fuscis; post, griseo- 

 albidis. 



Male. — 20 mm. Head white, lower half of face sharply fuscous. 

 Palpi white, second joint with basal f and a subapical ring dark fuscous, 

 terminal joint with a median blackish band. Antennas dark fuscous. 

 Thorax grey, mixed with white. Abdomen grey-whitish. Legs dark 

 fuscous, central ring of tibias and apex of all joints white, posterior tibiee 

 with whitish hairs above. Forewings moderate, costa gently arched, apex 

 obtuse, hindmargin nearly straight, rather oblique ; whitish, densely 

 irrorated and partially suffused with grey ; a dark fuscous basal patch, 

 bounded by a blackish-fuscous line from i of costa to % of inner margin, 

 acutely angulated outwards on fold, containing a large tuft of scales near 

 base, and two others before posterior margin ; immediately beyond this line 

 the ground-colour is clearer white ; a tuft of scales beneath fold at -J ; a 

 large fuscous patch, mixed with dark fuscous, extending on costa from J to 

 f, anterior edge oblique, reaching fold, posterior edge inwardly oblique, 

 reaching middle, lower edge angularly excavated; this patch contains a 

 large tuft of scales near middle of anterior edge, a smaller tuft in lower 



