X.—THE 
This species varies considerably in the intensity of the 
colouring as well as in the breadth of the white markings. 
The perfect insect appears from November till March. 
It frequents open grassy places at elevations ranging from 
2,000 to 4,500 feet, and is often very abundant in these 
situations. In the extreme south it has been taken on the 
tussock plains near the sea-level. 
XANTHORHOE DECLARATA. 
(Xanthorhoe declarata, Prout., Trans. N.Z. Inst. xlvi., 122.) 
(Plate XIV., fig. 25 @.) 
This species, which is very closely allied to X. clarata, 
was discovered by Mr. J. H. Lewis on the Old Man Range, 
Central Otago. It has also occurred plentifully on the 
lower slopes of Ben Lomond, near Queenstown, Lake 
Wakatipu, and on the Takitimu Mountains. 
The expansion of the wings is about 14 inches. It is very 
like X. clarata but considerably paler and greyer; the sub- 
terminal white line of the fore-wings is much straighter and the 
hind-wings are greyish-white with a slightly darker basal 
area and two broad subterminal bands. The cilia of all the 
wings are whitish barred with greyish-brown. 
There is considerable variation in size and, in the 
female, in markings. 
The perfect insect appears from November till Feb- 
ruary, and is found in tussock openings amongst beech 
trees on the mountain side, at elevations from 1,500 to 
4,000 feet above the sea-level. It may be easily passed 
over as a wasted specimen of X. clarata. 
XANTHORHOE CATAPHRACTA. 
(Larentia cataphracta, Meyr., Trans. N.Z. Inst. xvi., 79.) 
(Plate XIV., fig. 28 4, 29 9.) 
This large and very handsome species has occurred in 
the South Island on Mount Arthur, Arthur’s Pass, Lake 
Guyon, Hunter Mountains, and on the mountains at the 
head of Lake Wakatipu. 
The expansion of the wings of the male is about 1% inches, 
of the female 14 inches. This insect is larger and paler in 
colouring than X. clarata with more oblique and_ straighter 
markings; there is a broad longitudinal pale reddish-ochreous 
band along the costa in which the transverse lines almost dis- 
appear. The hind-wings are very pale whitish-ochreous. All 
the cilia are whitish with the darker bars either absent or very 
indistinct. The female is much duller and paler than the male. 
The perfect insect appears from December till March, 
and frequents grassy slopes on the mountain sides, at 
elevations of from 3,000 to 4,000 feet above the sea-level. 
Although sometimes met with in considerable numbers, it 
is much rarer and more local than X. clarata, 
XANTHORHOE STRICTA. 
(Xanthorhoe stricta, Philp., Trans. N.Z. Inst. xlvii., 195.) 
(Plate XIV., fig. 23 4, 249.) 
This very distinct species was discovered by Mr. W. 
G. Howes on Bold Peak, at the head of Lake Wakatipu. 
It has also occurred on the Hunter Mountains, at an 
elevation of about 3,000 feet above the sea-level. 
GEOMETRIDAE, 

119 
The expansion of the wings of the male is 14 inches; of the 
female 13 inches. The fore-wings of the male are cream-coloured, 
very Slightly tinged with pinkish; there is a small slightly 
darker basal patch, edged with blackish; the first line is black- 
ish wavy, very oblique, double, in some places treble; there is 
a minute discal dot; the second line is very oblique, strongly 
waved, very broad and shaded inwards, with two or three fainter 
lines towards the disc; the subterminal line is treble, slightly 
waved, parallel with the termen which is very oblique; there is 
a short oblique streak from the apex and a terminal series of 
black dots. The hind-wings are whitish-ochreous with several 
very faint wavy pale grey transverse bands and a terminal 
series of black dots. In the female the fore-wings are pale brown 
with many fine wavy oblique darker brown transverse lines 
similar to those of the male but very much fainter and more 
numerous. 
The perfect insect appears in January and February, 
and frequents the edges of the forest. 
Described and figured from specimens in the Dominion 
Museum. 
XANTHORHOE DISSIMILIS. 
(Venusia dissinilis, Philp., Trans. N.Z. Inst. xlvi., 118.) 
(Plate XIII., fig. 8 4.) 
This rather dull-coloured but very distinct species was 
discovered by Mr. M. O. Paseo on Ben Lomond, Lake 
Wakatipu. It has also occurred at Arthur’s Pass, at an 
elevation of about 3,000 feet’ above the sea-level. 
The expansion. of the wings is almost 14 inches. The fore- 
wings, which have the apex very acute, are ochreous-brown 
slightly purplish-tinged; there are two fine wavy lines extending 
almost from the apex to the dorsum at 4 sometimes enclosing 
an extremely elongate darker brown area; the other markings 
are obscure consisting of several fine slightly wavy lines parallel 
to the above. The hind-wings, which are shaped very like those 
of Epirrhanthis hemipteraria, are brownish-white becoming 
purplish-brown towards the termen which is strongly waved ; 
there is a conspicuous light bordered wavy blackish line across 
the middle and several very faint brownish lines on each side 
of this. The ground colour of the wings in the female is greyish- 
ochreous. 
The perfect insect appears from December till Feb- 
ruary, and frequents sub-alpine scrub. 
This species strongly recalls Hucymatoge anguligera 
in its superficial appearance. 
XANTHORHOE FRIVOLA. 
(Xanthorhoe frivola, Meyr., Trans. N.Z. Inst. xlv., 26.) 
This species was discovered by Mr. Philpott near 
Invereargill. 
The expansion of the wings of the male is about 14 inches. 
Head and thorax ferruginous-ochreous. Palpi 24. Antennal 
pectinations a 4, b 6. Abdomen whitish-ochreous mixed with 
brownish-ochreous. Fore-wings triangular, costa posteriorly 
arched, apex obtuse, termen somewhat bowed, rather oblique; 
whitish-ochreous tinged with grey, towards costa light yellow- 
ochreous; costa suffused with fuscous towards base; first two 
fasciae faintly indicated with fuscous on dorsal half; third and 
fourth fasciae slender, fuscous, third curved, fourth stronger, 
shortly angulated-prominent in middle; a dark-fuscous discal dot 
between these; a faint fuscous praesubterminal shade, and 
oblique subapical mark; a fuscous terminal line: cilia ochreous- 

