





A VIT.—THE 
BORKHAUSENIA ARMIGHRELLA. 
(Oecophora armigerella, Walk., Cat. xxix., 698; Meyr., Trans. 
N.Z. Inst., xvi., 41; Borkhausenia actinias, Meyr., Trans. 
Ent. Soc. Lond. 1901, 574.) 
(Plate XXIX., figs. 11, 12 varieties.) 
This bright yellow species seems to be common and 
generally distributed throughout the country. 
The expansion of the wings is rather under 2 inch. The 
fore-wings are rather deep yellow with the basal fourth of the 
costa strongly margined with dark brown; there is sometimes a 
blackish discal dot on the fold and another at 3, and rarely a 
broad dusky grey streak from the outer discal dot to the tornus, 
in which case the cilia are barred with blackish-brown at the 
apex and tornus (see fig. 12). The hind-wings are grey. 
There is much variation in the blackish-grey markings 
on the fore-wings, which are very often altogether absent. 
The fore-wings also vary considerably in the depth of the 
yellow ground colour, which is duller and more ochreous 
in some specimens than in others. 
The perfect insect appears from November till Janu- 
ary. It is often found resting on tree trunks, or fences, 
and when disturbed suddenly falls to the ground, where it 
either lies on its back with closed wings, or secretes itself 
in some crevice. 
BORKHAUSENIA PHARMACTIS. 
(Borkhausenia pharmactis, Meyr., Trans. Ent. Soc. Lond., 1905, 
241.) 
(Plate L., fig. 26 9.) 
This species was discovered by Mr. Meyrick on the 
Mount Arthur Tableland, at an elevation of about 4,000 
feet above the sea-level. It has since been taken by Mr. 
Philpott in the Cobb Valley. 
The expansion of the wings is 2 
It is extremely 
similar to Borkhausenia apertella, but shorter-winged and the 
outer portions of the fore-wings are densely sprinkled with red- 
inch. 
dish-brown scales. Mr. Philpott states that the structure of the 
male terminal appendages entitles this form to. specific rank. 
The perfect insect appears in December. 
Described and figured from a specimen kindly lent te 
me by Mr. Philpott. 
BORKHAUSENIA FRETA. 
(Borkhausenia freta, Philp., Trans. N.Z. Inst., lvi., 402.) 
(Plate XLVI., fig. 2 @.) 
This insect was taken by Mr. Philpott at Nelson. 
The expansion of the wings is slightly under 2 inch. It dif- 
fers from the ordinary form of Borkhausenia apanthes in hay- 
ing the head, anterior portions of thorax and extreme base of 
costa, blackish-brown; the fore-wings are also deeper yellow. 
Mr. Philpott states that the terminal appendages of the male 
also exhibit differences from allied forms. 
The perfect insect appears in November. 
Described and figured from a specimen in Mr. Phil- 
pott’s collection. 
TINEIDAE. 
BORKHAUSENIA APERTELLA. 
(Occophora apertella, Walk., Cat. xxix., 698; bifaciella, ibid. 810; 
Oecophora oporaed, Meyr., Trans. N.Z. Inst., xvi., 40.) 
(Plate XXIX., figs. 19, 20 varieties. ) 
This large, very vivid yellow species has occurred in 
the North Island on Mount Ruapehu and at Wainui-o-mata 
near Wellington, and in the South Island on Mount 
Arthur, Castle Hill, Lake Wakatipu and Invercargill. 
The expansion of the wings is about ~ inch. The fore-wings 
are very deep rich yellow, sometimes clouded with orange-brown; 
there is a fine blackish line along the costa at the base; two dis- 
cal dots at 4, often absent, and one at %, usually very small or 
absent. The hind-wings are grey. 
The perfect insect appears in November and Decem- 
ber, and in elevated situations is found until the middle 
or end of January. It is often very common in beech* 
forests at elevations of about 2000 feet, and when resting 
on the ground with closed wings it is very like a yellow 
beech leaf. Mr. Philpott informs me that specimens from 
the extreme south often exhibit an orange-brown angulated 
sub-terminal line. 
BORKHAUSENIA ERIPHAPA. 
(Borkhausenia eriphaea, Meyr., Trans. N.Z. instpexivis, 2 Ot) 
(Plate XXXVIII., fig. 15 9.) 
This very obscure species was discovered by Mr. Phil- 
pott on Ben Lomond, Lake Wakatipu, at an altitude of 
about 2,500 feet above the sea-level. 
The expansion of the wings is about ~ inch. The fore- 
wings are rather narrow, with the apex pointed and the termen 
oblique; dull reddish-ochreous, sometimes tinged with lilac or 
grey, but without distinct markings; the costa is faintly shaded 
with grey towards the base. The hind-wings are grey, very 
slightly tinged with reddish-ochreous; the cilia are pale grey, 
whitish on the costa. 
The perfect insect appears in November, and is found 
in beech forests on the mountain side. It is allied to B. 
perichlora. 
BORKHAUSENIA PERICHLORA. 
(Borkhausenia perichlora, Meyr., Trans. N.Z Inst., xxxix., 118.) 
(Plate XXIX., fig. 14.) 
This rather large dull-coloured species was discovered 
at Invereargill by Mr. Philpott. It has also occurred on 
the Hunter Mountains. 
The expansion of the wings varies from ? to § inch. The 
fore-wings are rather elongate with the termen very obliquely 
rounded; dull ochreous-brown, generally strongly tinged with 
brick red; there is an indistinct wavy yellowish streak along the 
dorsum; an oblique brown mark on the fold; an obscure discal 
dot at $ and a very obscure curved sub-terminal line. The hind- 
wings are greyish-ochreous with the cilia nvuch paler. The head 
and palpi are dull greyish-brown. 
There is considerable variation in the markings, which 
are sometimes almost obsolete. 
The perfect insect appears from October to January, 
and is very common amongst manuka serub (Leptosper- 
mum). In general appearance it is somewhat intermediate 
between B. basella and Leptocroca scholaea. 

*Nothofagus Solandri. 

