Lejndoptera.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 73 



base beneath, and suffused with white above. Antennae ochreous-grey- whitish, 

 ciliations^^. Thorax white mixed with brownish. Abdomen whitish-ochreous. 

 Forewings elongate, narrow, posteriorly dilated, costa posteriorly slightly arched, apex 

 obtuse, termen slightly rounded, rather oblique ; white, more or less sprinkled with 

 pale brownish-ochreous, and with some scattered black specks ; lines in male very 

 little marked except towards costa, where they are margined interiorly with blackish, in 

 female fairly distinct, white edged on each side with pale brownish-ochreous suffusion, 

 darker towards costa, first from before J of costa to | of dorsum, curved, second 

 from i of costa to ^ of dorsum, indented near costa, very abruptly curved outwards 

 in disc, preceded and followed by short undefined dashes of black irroration on veins, 

 especially on upper half ; orbicular in male obsolete, in female represented by an 

 ochreous- fuscous dash attached to first line ; discal spot indistinct, narrow-reniform, 

 dark fuscous, sometimes pale-centred, followed by two dark-fuscous dots, its lower 

 end traversed in female by a dark-fuscous dash ; a terminal series of short blackish 

 dashes on veins : cilia whitish, with two lines in male dark fuscous, in female 

 brownish. Hindwings 1|, with long hairs in cell ; pale whitish - ochreous, with a 

 brassy tinge, in female slightly greyish posteriorly : cilia pale whitish-ochreous, with 

 a faint fuscous line. 



Carnley Harbour, Auckland Island ; Enderby Island : two specimens. 



The differences between these, as specified above, are probably — at least, in part 

 — individual rather than sexual. The species is closely related to petrina, Meyr., 

 but distinguishable by the rather shorter and broader forewings, whiter colouring, 

 obsolescence of orbicular and claviform, absence of bars in cilia, and other small 

 differences. 



Pterophoridae. 

 Platyptilia aeolodes, Meyr. 



Carnley Harbour, Auckland Island ; one specimen. Occurs also in New Zealand 

 and the Chatham Islands. 



TORTRICIDAE. 



Pyrgotis plagiatana, Walk. 



Carnley Harbour and Norman Inlet, Auckland Island ; seven specimens. 



Compared with a long series of New Zealand specimens, these are a large, dark, 

 richly coloured form, very variable, but with the tendency to white marking or 

 suffusion much reduced. Some of the specimens have the forewings distinctly 

 narrower and more elongate than in New Zealand examples, but others cannot 

 be distinguished in this respect. I am unable to find any rehable differences in 

 structure or markings, and can only regard them as an interesting local race. 



Cacoecia syntona, n. sp. 



c? . 26 mm. Head, palpi, antennae, and thorax light yellow-ochreous ; palpi 4, 

 sprinkled with fuscous ; antennae flatly dentate, ciliations ^. Abdomen pale whitish- 

 ochreous. Forewings elongate, moderate, costa moderately arched, apex round- 

 pointed, termen faintly sinuate, oblique, costal fold moderate, extending from base 

 to near f ; light yellow-ochreous ; markings red-brown irregularly sprinkled with 

 blackish ; a moderately broad median longitudinal streak from base to apex, at- 

 tenuated towards base, crossed by a broad oblique central fascia which is narrow 

 above it and obsolete on costa, and divides into two irregular arms towards tornus. 



