AXVI—THE 
apical third of costa and along termen. The hind-wings are grey- 
ish-white with faint lunule and terminal marks, In the female 
the fore-wings are heavily strewn with greyish scales; the small 
black markings are much less distinct, and the hind-wings are 
pale ochreous. 
Hasily distinguished from /. huttonii by its grey tinge 
and very fine black markings. 
The perfect insect appears in January and may be 
looked for in sub-alpine forests at about 3,500 feet above 
sea-level. 
I am indebted to Mr. Philpott for the opportunity of 
deseribing the female insect. 
IZATHA PICARELLA. 
(Oecophora picarella, Walk., Cat. xxix., 699; Psecadia teras, Feld., 
Reis. Nov., Pl. exl. 28; Semiocosma picarella, Meyr., Trans. 
NEZe LOSt., XV. Zo.) 
(Plate XXYV., fig. 39 @.) 
This very striking species has occurred at Waitakere, 
Ohakune, Wellington, Christchurch, Dunedin and Inver- 
eargill. 
The expansion of the wings is slightly under 1 inch. The 
fore-wings are clear white with very sharply-defined heavy black 
markings; there is an irregular oblique patch at the base; an 
irregular oblique marking on the costa at about 4, nearly reach- 
ing to the dorsum; another irregularly Branched! marking from 
about 3 of the costa, nearly reaching the tornus; three small 
spots are situated on the costa before the apex and a large irre- 
gular mark at the apex; there is a series of confluent terminal 
dots; the cilia are white, becoming black on the lower 3 of the 
termen. The hind-wings are dark brownish-grey, darker towards 
the apex and termen; there is a dusky discal dot. 
The perfect insect appears in December and January, 
but as a rule is rarely met with. Mr. Meyrick states, how- 
ever, that he found it rather commonly on fences and at 
light near Dunedin. In the Wellington district it is usu- 
ally taken resting on trees, or fences, its colouring no 
doubt imitating black and white lichens. In this respect 
it closely resembles Declana atronivea, and such a close 
superficial resemblance between two insects so far apart in 
actual relationship is very interesting. The wing markings 
in both species have no doubt been independently acquired 
for similar protective purposes. 
IZATHA ACMONIAS. 
(Izatha aemonias, Philp., Trans. N.Z. Inst., liii., 340.) 
(Plate XXV., fig. 29 ¢@.) 
This species, which is regarded by Mr. Meyrick as 
identical with J. picarella, has occurred on Mount Rua- 
pehu, at Masterton, Mount Arthur, the Otira River, Lake 
Wakatipu, and around Invercargill. 
The expansion of the wings ranges from slightly over 1 
inch to about 14 inches. It differs from J. picarella in its gener- 
ally larger size, slightly more pointed apex to the fore-wings, and 
absence of black cilia on the lower portion of the termen. The 
hind-wings are also paler grey, with a much stronger discal dot, 
and a series of obscure dusky marks between the veins near the 
apex. 
TINEIDAE. 279 
The perfect insect appears in December. At Otira 
several very fine specimens were dislodged from dead lace- 
bark trees (Gaya Lyallit) which were heavily covered with 
lichens. From this it appears probable that the larva is 
a wood:borer in the lace-bark. Mr. Philpott, who has 
known this insect for many years at Invercargill, considers 
that it is quite distinct from Jzatha picarella. 
IZATHA BALANOPHORA. 
(Semiocosma balanophora, Meyr., Trans. Ent. Soc. Lond., 
1897, 389.) 
(Plate XXXII., fig. 3 @.) 
This rather inconspicuous species has occurred in the 
North Island at Waitomo and Wellington. In the South 
Island it has been found on Bold Peak, Lake Wakatipu, 
and Flagstaff Hill, Dunedin. 
The expansion of the wings of the male is about # inch, of 
the female about 1 inch. The fore-wings are dull white, very 
finely speckled with pale brown. There are three narrow brown 
marks on the costa; one at the base, one before the middle, and 
the last and smallest beyond the middle; a large curved blackish- 
brown mark is situated in the dise and a series of faint brown 
streaks on each of the veins beyond the middle; there is an 
obscure sub-terminal shade and a series of faint marginal dots 
from # of the costa to the tornus. The hind-wings are very pale 
ochreous-brown. In the female the large curved discal streak is 
replaced by two slender blackish-brown marks. 
The perfect insect appears in November and Decem- 
ber, but is not often met with. It seems to frequent rather 
open situations and most of the specimens taken have been 
found resting on fences or tree-trunks. 
IZATHA MANUBRIATA. 
(Izatha manubriata, Meyr., Trans. N.Z. Inst., liv., 165.) 
(Plate XXX., fig. 8 4.) 
This species seems to be confined to the Wakatipu dis- 
trict, where it has occurred on Ben Lomond and on Mount 
Aurum at elevations of about 3,000 feet. 
The expansion of the wings is slightly under 1 inch. The 
fore-wings, which have the apex rather pointed and the termen 
oblique, are pale grey irregularly sprinkled with darker grey 
scales; there is a black-edged dark grey basal patch considerably 
produced on the fold; an elongate, somewhat crescent-shaped, 
longitudinal black line in the disc with a black dot above it and 
a grey suffusion below; a small black dot on the fold; cloudy 
black bars on the costa at + and # and a series of blackish dots 
along apical third of costa and on termen. The hind-wings are 
grey. 
The perfect insect appears in January, and may be 
looked for near the edges of beech forest on the mountains. 
It is a rare species. 
IZATHA APODOXA. 
(Semiocosma apodoxa, Meyr., Trans. N.Z. Inst., xx., 79.) 
(Plate XXXII., fig. 2 9.) 
This very obscurely-marked species has occurred at 
Wellington. 
The expansion of the wings is about { inch. The fore-wings 
are dull white finely speckled with pale greyish-brown; there is 

