X.—THE GEOMETRIDAE, | 115 
XANTHORHOE UMBROSA. 
(Xanthorhoe wmbrosa, Philp., Trans. N.Z. Inst. xlix., 241.) 
(Plate XIII., fig. 29 @.) 
This fine species was discovered by’ Mr. Philpott on 
Mount Cleughearn, Southland, at an elevation of about 
3,200 feet above the sea-level. 
The expansion of the wings is about 14 inches. The fore- 
wings, which have the apex slightly produced, are pale green 
with very numerous blackish-grey wavy transverse markings; 
there is a very indistinct basal patch; a more clearly defined 
median band with its outer edge concave below the costa and 
with two rounded projections below the middle; there are two 
series of rather conspicuous black bars on the veins near the 
outer edge of the median band, and a well-defined strongly waved 
subterminal line. The hind-wings are greyish-white with wavy 
blackish median and subterminal lines and a double series of 
blackish bars on the veins. The margins of all the wings are 
strongly scalloped; there is a terminal series of black crescentic 
marks and the cilia are pale greenish-grey. 
This species is apparently closely allied to X. cedri- 
nodes which it much resembles in its wing outline and 
general character of markings. 
The perfect insect appears in January, and may be 
taken commonly at night, on the flowers of Dracophyllum 
longifolium. I am indebted to Mr. Philpott for specimens. 
XANTHORHOE SUBOBSCURATA. 
(Scotosia subobscurata, Walk., Cat. xxv., 1358; Cidaria ascotata, 
Feld. Reis. Nov. pl. exxxi., 9; Larentia petropola, Meyr., 
Trans. N.Z. Inst. xvi., 82.) 
(Plate XIII., fig. 30 9.) 
This fine insect has occurred at Nelson, in the Otira 
Gorge, at Macetown in Central Otago, and on Bold Peak, 
Lake Wakatipu. 
The expansion of the wings is about 1% inches. The fore- 
wings are pale slaty-grey very Slightly tinged with ochreous; 
the basal and sub-basal patches and the median band are mar- 
gined with rather irregular, faint whitish lines; there is a broad 
dark slate-coloured shading on the termen traversed by a wavy 
whitish subterminal line. The hind-wings are paler than the 
fore-wings with similar markings. 
The perfect insect. appears from January till March. 
It is very rarely met with, but may be looked for in bare 
rocky places about 2,000 feet above the sea-level. Its 
eolouring is evidently protective when the insect is rest- 
ing on rock surfaces. 
Described and figured from a specimen in the 
Dominion Museum. 
XANTHORHOE NEBULOSA. 
(Xanthorhoe nebulosa, Philp., Trans. N.Z. Inst. xlix., 241.) 
(Plate XIII., fig. 26 9.) 
This very interesting species was discovered by Dr. 
Thomson and Mr. Harold Hamilton at the Bluff, Clarence 
River, Marlborough. 
The expansion of the wings is 13 inches. All the wings are 
pale cream-coloured, slightly tinged with ochreous towards the 
body and strongly clouded and speckled with bluish-grey on the 
terminal area; the fore-wings have the basal line distinct, very 
fine strongly curved and slightly waved; the first and second 
lines are also very fine, brownish, very strongly waved and much 
closer together than usual; there is a distinct discal dot. 
The perfect insect appears in March. The name 
nebulosa is singularly appropriate. 
Described and figured from the type specimen in the 
Dominion Museum. 
XANTHORHOE COSMODORA., 
(Larentia cosmodora, Meyr., Trans. N.Z. Inst. xx., 57.) 
This species was discovered by Mr. Meyrick in the 
South Island on Mount Arthur, at an elevation of 4,500 
feet. 
The expansion of the wings of the female is slightly over 
1 inch. The fore-wings have the costa hardly perceptibly arched, 
termen slightly rounded, oblique; whitish-ochreous, slightly 
yellowish-tinged; a curved irregular black line rather near base, 
followed by a white line; median band rather darker, tinged 
with yellowish-fuscous towards edges, margined with dentate 
black lines and outside these with white, anterior from one- 
third of costa to two-fifths of dorsum, rather curved, posterior 
from two-thirds of costa to three-fourths of dorsum, somewhat 
prominent beneath costa, and with a more distinct double pro- 
minence in middle; two white dentate-edged spots within median 
band, first beneath costa, containing small black discal dot, 
second on dorsum; a waved white subterminal line; a fine dark 
fuscous terminal line interrupted into numerous dots; cilia 
whitish-ochreous, with dark fuscous bars hardly reaching base. 
Hind-wings whitish-ochreous, with faint darker greyish-tinged 
lines; a median band of four more distinct cloudy grey lines, 
first three straight, fourth well-marked, rather dark fuscous 
waved, somewhat prominent in middle, beneath confluent with 
thifd; a faint white subterminal line: cilia pale whitish ochreous, 
with a faint greyish line tending to form spots. 
Appears in January. Possibly the other sex of 
Xanthorhoe bryopvs. 
I am unacquainted with this insect. The above parti- 
culars have been taken from the original description. 
XANTHORHOE BRYOPIS. 
(Larentia bryopis, Meyr., Trans. N.Z. Inst. xx., 57.) 
(Plate XLIV., fig. 5 @.) 
This species was discovered by Mr. Meyrick on the 
Mount Arthur Tableland, in January, 1886, at an eleva- 
tion of 4,500 feet above the sea-level. 
The expansion of the wings is slightly over 1 inch. The 
fore-wings are dull greenish-ochreous with numerous jagged 
blackish transverse lines; the edges of the basal patch and 
median band are marked with white, and the middle of the 
median band is also speckled with white; there is a very distinct 
elongate discal dot; the space immediately beyond the median 
band is conspicuously paler; there is a cloudy subterminal band, 
containing a faint wavy whitish line and a series of double 
blackish terminal dots. The hind-wings are brownish-ochreous, 
with a paler subterminal line and a series of double terminal 
dots. 
Deseribed and figured from one of the original 
specimens kindly given to me by Mr. Meyrick. 

