X.—THE GEOMETRIDAE. 125 
The expansion of the wings is about 1 inch. This species is 
stated to be distinguished from closely allied forms by the barred 
cilia, the absence of any clear yellow colouring, the less pro- 
minent angulation of the post-median line and the more elongate 
wings. 
The perfect insect appears from November till Feb- 
ruary. In habits it exactly resembles Notoreas mechanitis. 
NOTOREAS ARCUATA. 
(Notoreas arcuata, Philp., Trans. N.Z. Inst. liii., 338.) 
(Plate XIV., fig. 39 9.) 
This species, which is very closely allied to both Noto- 
reas mechanitis and N. paradelpha, has occurred on 
Arthur’s Pass, at an elevation of about 5,000 feet above 
the sea-level, and on the St. Arnaud Range, near Nelson. 
The expansion of the wings of the female is about 1 inch. 
It differs from Notoreas mechanitis in having the costa somewhat 
more arched and the cilia distinctly barred with blackish and 
from both Notoreas mechanitis and N. paradelpha in having the 
outer edge of the median band waved but not strongly angulated 
above the middle; there is a very fine wavy white subterminal 
line. As only the female is known at present it may be neces- 
sary to transfer the species to the genus Dasyuris when the male 
is discovered. 
The perfect inseet appears. from Deeember till Feb- 
ruary. 
Deseribed and figured from a specimen taken by Mr. 
Howes. 
NOTOREAS GALAXTIAS, n. sp. 
(Plate XV., fig. 29 @.) 
This rather conspicuous species was discovered by Mr. 
J. H. Lewis on the Old Man Range, Central Otago, at an 
elevation of about 4,000 feet above the sea-level. 
The expansion of the wings is about 1 inch. All the wings 
are brownish-black with broad creamy-white markings; there is 
a broad oblique band between the basal patch and median band 
containing a series of four small blackish blotches; the outer 
edge of the median band is bordered by a very broad creamy- 
white band strongly angulated outwards near the middle; a 
similar but broader and yellower band crosses the middle of 
the hind-wings; there is a fine wavy subterminal line with a 
conspicuous whitish spot in the middle of the termen of both 
fore- and hind-wings. The head and body are blackish sprinkled 
with whitish scales; the palpi black with the base of the apical 
joint white. The markings on the underside resemble those 
above except that the area of creamy-white colouring is very 
much greater. 
The perfect insect appears in February, and may be 
looked for on high open country. 
Deseribed and figured from the unique specimen 
kindly given to me by Mr. Lewis. 
NOTOREAS ISOLEUCA. 
(Notoreas isoleuca, Meyr., Trans. N.Z. Inst. xliii., 59.) 
(Plate XV., fig. 1 9.) 
This species, which is extremely closely allied to the 
preceding, has occurred on the mountains around Arthur’s 
Pass and on Ben Lomond, at an altitude of about 4,600 
feet above the sea-level. 
It is a smaller and shorter-winged insect with little or no 
yellowish admixture; the lines are white, the first curved, the 
second angulated in the middle, the others slender and some- 
times partially obsolete. The cilia have the basal half dark 
brown, the outer half whitish obscurely barred with grey. 
The perfect insect appears from January till March, 
and is stated to frequent higher altitudes than VN. mechan- 
itis. 
NOTORHAS HEXALEUCA. 
(Dasyuris hexaleuca, Meyr., Trans. N.Z. Inst. xlvi., 103.) 
This neatly-marked little species was discovered by 
Mr. Philpott on Ben Lomond, Lake Wakatipu. It has 
also occurred on Flagstaff Hill, near Dunedin. 
The expansion of the wings is nearly ~ inch. All the wings 
are deep brownish-black with wavy ochreous-white transverse 
lines. The fore-wings have six lines; the first cloudy, ill-defined, 
the second and third nearly straight, the third rather thick, the 
fourth fine, angulated in disc, the fifth thick, rather curved out- 
wards in disc, the sixth slender, interrupted, curved, very near 
termen on lower half; the cilia are white barred with dark 
grey. The hind-wings have the basal area speckled with white 
and three ochreous-white transverse streaks; the first before the 
middle narrow somewhat angulated in disc with a distinct pro- 
minence from angle, the second at 2 rather broad, bent in disc, 
the third rather narrow, waved, curved and interrupted; the 
cilia are white with a broad brownish-grey basal line. 
This species is extremely similar to both N. czsoleuca 
and N. mechanitis. It is stated to be distinguished by the 
antemedian white line of fore-wings which is curved in N. 
isoleuca, straight in hexaleuca; median angled in hexaleuca 
straight in zsolewca; and so on. The thorax is much more 
hairy above in ?tsoleuca than in heraleuca. N. hexaleuca 
is smaller than N. mechanitis with relatively longer anten- 
nal pectinations. 
The perfect insect appears from November till March. 
It oceurs sparingly on open hillsides, from about 1,000 to 
3,900 feet above the sea-level. 
Described from a specimen in Mr. Philpott’s collee- 
tion. 
NOTOREAS ORTHOLEUCA. 
(Notoreas ortholeuca, Huds., Ent. Mo. Mag. lix., 129.) 
(Plate LI. fig. 17 4.) 
This small and very distinetly-marked species was 
discovered by Mr. F. S. Oliver on Stoney Peak, near Glen- 
orehy, at the head of Lake Wakatipu. 
The expansion of the wings is slightly over $ inch. The 
fore-wings are elongate with the apex produced and the termen 
rather oblique; black, with three almost straight white trans- 
verse bands; the first near the base narrow almost uniform in 
breadth; the second before the middle, slightly dilated in the 
centre; the third from beyond the middle of costa to dorsum 
just before tornus, very slightly curved, strongly dilated in 
disc; there is a very obscure interrupted subterminal line from 
before apex, almost reaching as far as the middle of termen, 
The hind-wings are black with a broad white band beyond middle, 
strongly dilated in disc; there are traces of a subterminal line. 
All the cilia are whitish with very indistinct whitish bars, 

