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120 X.—THE GEOMETRIDAE. 
whitish tinged with brownish. Hind-wings rather elongate, 
termen rounded; pale-yellowish, towards base faintly greyish- 
tinged: cilia as in fore-wings. 
Apparently intermediate between imperfecta and recta, but 
distinct from either. 
J am unacquainted with this species which Mr. Phil 
pott is unable to identify. The above particulars have been 
taken from the original description. 
XANTHORHOE DIONYSIAS. 
(Xanthorhoe dionysias, Meyr., Trans. N.Z. Inst. xxxix., 108.) 
(Plate “XiLY., fig: 9" 4.) 
This rather distinctly-marked species was discovered 
by Mr. J. H. Lewis on the Old Man Range, Central Otago. 
The expansion of the wings is nearly 14 inches. The fore- 
wings are rather elongate with the costa strongly arched and 
the termen oblique; very pale ochreous-brown tinged with red- 
dish on the costa and termen; there are numerous oblique wavy 
brownish-black transverse lines; two along the outer edge of 
the basal patch; three, very distinct, on the median band; two 
strongly waved beyond this and a series of rather cloudy sub- 
terminal marks; the cilia are pale reddish-ochreous barred with 
blackish. The hind-wings are pale ochreous-brown with three 
cloudy grey transverse lines; the cilia are pale ochreous barred 
with blackish. The wnderside of all the wings is dark reddish- 
ochreous with conspicuous wavy white and blackish-brown trans- 
verse lines. 
The perfect insect appears in February, and frequents 
open mountainous country at elevations of about 4,000 
feet above the sea-level. ; 
XANTHORHOE HELIAS. 
(Xanthorhoe helias, Meyr., Trans. N.Z. Inst. xvi., 81.) 
(Plate XIV., fig. 10 @.) 
This species, which is closely allied to X. dionysius 
and X. recta, has occurred at Hurunui, Dunedin and on 
The Hump and Mount Cleughearn in Southland, at an 
elevation of about 3,500 feet. 
The expansion of the wings is about 1% inches. It differs 
from X. dionysius in the following respects:—Generally paler in 
colour, more suffused with reddish-ochreous and larger in size 
with the transverse lines tending to become confluent, especially 
on the outer edge of the median band, which has a decided 
projection near the middle, and is sometimes broadly edged with 
white; there is a strongly scalloped whitish transverse line on 
the subterminal area. The cilia of all wings are reddish-ochreous 
without any dark bars. The underside of the hind-wings is 
ochreous with a faint blackish median line and discal dot, but 
is not distinctly marked as in X. dionysius. 
A variety in which the wings are much suffused with 
blackish-brown occurs on The Hump, Southland, and has 
been deseribed by Mr. Philpott as X. helias obscura.* 
The perfect insect appears in January, and frequents 
scrubby ravines on the mountain side. 
I am indebted to Messrs. J. H. Lewis and A. Philpott 
for specimens. 
FiTTanssiN 2. Lasts hil, «ose 
XANTHORHOE RECTA. 
(Xanthorhoe recta, Philp., Trans. N.Z. Inst. xxxvii., 330.) 
(Plate XIV., fig. 19 ¢@.) 
This species, which is very closey allied to X. helias 
and X. dionysius, was discovered by Mr. J. H. Lewis at 
Ida Valley, Central Otago. It has also occurred at 
Dunedin and Invercargill. 
The expansion of the wings is about 14 inches. The fore- 
wings are greyish-ochreous much clouded with reddish-ochreous 
especially on the costal and terminal areas; the transverse lines 
are almost straight and oblique except the outer edge of the 
median band which is waved with two projections near the 
middle; if is followed by a conspicuous creamy-white band; 
there is a whitish mark on the costa before the apex. The hind- 
wings are clear ochreous above and dark reddish-ochreous under- 
neath. All the wings have a series of minute terminal marks 
and the cilia are pinkish-ochreous without bars. According to 
Mr. Lewis the female is semi-apterous. 
The perfect insect appears in February and March. 
It oceurs commonly on open tussock country in Central 
Otago. 
Described and figured from specimens captured by 
Mr. J. H. Lewis. 
~XANTHORHOE AEGROTA. 
(Selidosema aegrota, Butl., Cist. Ent. ii., 499; Larentia aegrota, 
Meyr., Trans. N.Z. Inst. xvi., 80.) 
(Plate XIV., fig. 18 @.) 
This rather inconspicuous species has occurred in the 
North Island at several localities in the Wellington Dis- 
trict. It is probably generally distributed throughout the 
South Island, and has also occurred at Stewart Island. 
The expansion of the wings is about 14 inches. The fore- 
wings are dull ochreous-brown; there are several indistinct wavy 
blackish lines near the base, a black dot above the middle, then 
three or four more lines, followed by a cloudy shading on the 
termen. The hind-wings are pale ochreous-brown. The cilia of 
all the wings are dull ochreous-brown barred with blackish. 
There is usually a deep brown patch near the dorsum on the 
underside of the hindwings, followed by a broad reddish-brown 
subterminal band traversed by several wavy darker lines. 
This species varies considerably in the intensity of the 
markings on both upper and under surfaces, and some 
specimens are almost’ without markings. 
The perfect insect appears from November till March, 
and in the South Island is often very common. It usually 
frequents rather open situations in the neighbourhood of 
forest, and I have often observed it amongst bushes of 
‘“‘Wild Irishman’’ (Discaria toumatou.) It is extremely 
abundant on the banks of the Dart River, at the head of 
Lake Wakatipu. 
XANTHORHOE ALBILINEATA. 
(Xanthorhoe albalineata, Philp., Trans. N.Z. Inst. xlvii., 194.) 
(Plate XIV., fig. 17 @.) 
This very distinct species was discovered by Mr. Phil- 
pott on Table Hill, Stewart Island, at an elevation of about 
2,000 feet above the sea-level. 
