Meyrick. — Descriptions of New Zealand Tineina. 79 



costa moderately arched, slightly sinuate in middle, apex round- 

 pointed, hindmargin very obliquely rounded ; whitish-ochreous, 

 sometimes with scattered fuscous scales, especially on costal 

 half anteriorly ; sometimes a dark fuscous suffusion towards 

 base of costa ; two fuscous dots, somewhat obliquely placed, 

 faintly indicated in disc before middle ; a conspicuous round 

 dark fuscous dot in disk beyond middle ; sometimes a posterior 

 transverse line indicated with dark fuscous scales, angulated in 

 middle, indented above middle : cilia whitish-ochreous. Hind- 

 wings whitish-ochreous, greyish-tinged, more or less suffused 

 with light fuscous-grey, except towards base ; cilia pale whitish- 

 ochreous. 



Arthur's Pass (4,700 feet), and Mount Arthur (4,000 feet), in 

 January ; three specimens. Probably nearer the Tasmanian 

 P. cata.vera than any other described species. 



Semiocosma, Meyr. 



Sem,. mystis, n. sp. 



Differs from S. peroneanella only as follows : usually larger ; 

 thorax with the two dorsal black marks united in front to form 

 an irregular bar ; forewings with the black postmedian discal 

 mark connected with the mark beneath middle of disc by a bar, 

 and not touching costal spot above it (in S. peroneanella it is con- 

 nected with spot above it, and not with mark beneath middle of 

 disc) ; hindwings more whitish, the grey colour forming a discal 

 spot and subterminal band (in S. peroneanella the grey is gene- 

 rally diffused posteriorly). 



In my description of S. peroneanella this is included as a geo- 

 graphical (South Island) form of that species ; as I now prefer to 

 separate it as a distinct species, the said description should be 

 corrected accordingly. The synonymy is correct as quoted. 



S. peroneanella occurs at Auckland, Hamilton, Napier, and 

 Wellington ; S. mystis at Nelson, Christchurch, and Dunedm ; 

 both in December and January. I have seen a fair number of 

 specimens, and the two forms appear constant. 



Sem. ajwdoxa, n. sp. 



Mule, female. — 21-26 mm. Head whitish, lower margin of 

 face and maxillary palpi dark fuscous. Palpi white, second joint 

 with lower half and a subapical ring fuscous, terminal joint with a 

 blackish median band. Antennae dark fuscous. Thorax whitish, 

 with a few fuscous scales. Abdomen grey-whitish. Legs dark 

 fuscous, posterior pair whitish. Forewings elongate, costa 

 slightly arched, apex obtuse, hindmargin nearly straight, rather 

 oblique ; white, irregularly irrorated with light greyish-fuscous ; 

 a small fuscous spot at base of costa, and a dot near base in 

 middle ; a slender dark fuscous streak from J of costa to disc 



