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other segments have two rows of minute black warts, with 
whitish dots between them, each of the black dots emits a short 
black bristle; there is often a faint broken whitish subdorsal 
line. The anal prolegs and posterior portions of the larva are 
usually tinged with pink. 
This larva is very active when disturbed, otherwise it 
usually rests at full length on the leafless stalks of its 
foodplant. It is a very pretty-looking larva, its bright 
green colour, broad white lateral line and clear black dots 
giving it a very striking appearance for so small a cater- 
pillar. 
The pupa is enclosed in a rather open network cocoon, 
attached to the stem of the foodplant. 
The perfect insect appears in February. 
ORTHENCHES GLYPHARCHA. 
(Orthenches glypharcha, Meyr., Trans. N.Z. Inst., li., 353.) 
(Plate XLVII., fig. 19 9.) 
This extremely beautiful little species has occurred in 
the forest on the lower slopes of Mount Egmont and 
Mount Ruapehu at elevations of about 3,600 feet above 
sea-level. It has also been found in the Motueka Valley, 
near. Nelson, and at Christchurch and Arthur’s Pass. 
The expansion of the wings is seven-sixteenths of an inch. 
The fore-wings, which are elongate-oblong with the termen 
strongly oblique, are deep bronzy-grey with brilliant golden 
reflections and dark-edged shining snow-white markings; there 
is a short longitudinal white bar in the middle at the base; a 
large outwards-curved crescentic mark on the costa at about 4, 
reaching beyond the disc; another much, shorter mark near the 
middle; a small broad mark beyond this and two slightly longer 
marks before the apex; there are several small white blotches on 
the termen, one almost connected with the sub-apical costal 
mark, also a large club-shaped mark at the tornus reaching 
more than half-way across the wing. The hind-wings and the 
cilia of all the wings are grey. The head is shining white, grey 
on the crown; the thorax white with bronzy-golden side tufts 
and the abdomen grey. The antennae are snow-white with black 
rings. 
The perfect insect appears in February, and evidently 
frequents forests. It is fairly common on Mount Egmont. 
The markings on the fore-wings of this species are sugges- 
tive of certain members of the genus Glyphipteryz. 
ORTHENCHES. VIRGATA. 
(Orthenches virgata, Philp., Trans. N.Z. Inst., lii., 44.) 
(Plate XLVII., fig. 18 9.) 
This bright-looking species was discovered by Dr. A. 
Jefferis Turner at Auckland. It has also occurred at 
Waitati, near Dunedin. 
The expansion of the wings is about 4 inch. The fore- 
wings are bright fawn-colour with purplish reflections; there are 
four darker oblique transverse bands; the first near the base, 
from the fold to the dorsum; the second, containing a distinct 
black mark, from + of the costa to the middle of the dorsum; 
the third from about 4 of the costa to near the tornus; the 
fourth from before the apex to near the tornus, where it meets 
the third band, the two forming a large irregular V-shaped 
marking; there is a short black bar on each side of the V and 
a whitish cloud towards the termen. The hind-wings, cilia and 
abdomen dre pale cream colour. 
The perfect insect appears in October. 
Described and figured from a specimen kindly lent 
to me by Mr. Philpott. 
Genus 8.—PLUTELLA, Schranck. 
Basal joint of antennae with dense pecten. Labial palpi 
with second joint tufted beneath. Fore-wings with veins 7 and 
8 separate. Hind-wings with 3 and 4 connate or somewhat 
approximated. (Plate H., figs. 33, 34, 35 neuration and head of 
Plutella maculipennis.) 
A small cosmopolitan genus represented in New Zea- 
land by five species. 
PLUTELLA MEGALYNTA. 
(Plutella megalynta, Meyr., Trans. N.Z. Inst., xlvii., 203.) 
(Plate XXXVI., fig. 1.) 
This very large species has occurred on the Hunter 
Mountains in Southland at elevations of between 3,000 and 
4,000 feet above the sea-level, on McKinnon Pass, and on 
Table Hill Stewart Island, at about 2,000 feet. 
The expansion of the wings is 1% inches. The fore-wings 
are elongate with the costa arched and the apex somewhat 
obtuse; pale brownish-ochreous with brown markings; there is 
a narrow longitudinal streak near the costa on the basal third; 
another. shorter and thicker streak beyond this in the disc; a 
triangular patch on the termen below the apex with its pointed 
end turned upwards; there is a broad longitudinal stripe from 
the base parallel to the dorsum reaching nearly to the tornus; 
a cloudy patch of reddish-brown in the dise beyond the middle 
and four black dots on the apical third of the costa. The hind- 
wings are pale straw-colour. The body is brownish-ochreous; 
there are two black bars on the thorax, 
There is considerable variation in size, some speci- 
mens having a wing expanse of fully 1$ inches. Also in 
the ground colour, which is sometimes more or less clouded 
with dull brown. 
The perfect insect appears in December. Mr. Phil- 
pott informs me that drowned specimens are often found 
in the mountain tarns, although living individuals are 
rarely met with. 
This species may be at once recognised by its large 
size and very distinct and unusual markings. 
Described and figured from a specimen kindly lent to 
me by Mr. Philpott. 
PLUTELLA SERA. 
(Plutella sera, Meyr., Trans. N.Z. Inst., xviii., 178.) 
(Plate xX xOay Ly fies Oa) 
This speckled little insect seems to be generally dis- 
tributed throughout the North Island, though nowhere 
abundant. In the South Island it has occurred at Christ- 
ehurch. 
The expansion of the wings is slightly under 4 inch. The 
antennae are whitish-ochreous with two bars and the apex dark 
brown. The fore-wings are rather broad with the costa slightly 
arched and the termen oblique; pale brownish-ochreous, some- 
times dark brownish-ochreous, with numerous blackish-brown 
spots; there is a cloudy brown shading at the base; a large 
black spot on the fold before the middle, tending to be produced 
as a cloudy streak towards the costa; another faint streak on 
the dorsum at 3; a marginal series of blackish spots and a few 
scattered black dots in the dise. The hind-wings are pale grey- 
ish-ochreous. 

