XI—THE PYRALIDAE. 
CRAMBUS ISOCHYTUS. 
(Crambus isochytus, Meyr., Trans. N.Z. Inst., xx., 68.) 
(Plate XX., fig. 10 4.) 
This very large and conspicuous species occurs ocea- 
sionally on the Tableland of Mount Arthur, at elevations 
of from 3,500 to 4,500 feet above the sea-level. 
The expansion of' the wings is slightly over 14 inches. The 
fore-wings are dull brownish-ochreous very slightly brassy- 
tinged; there is a narrow longitudinal white streak on the costa 
not quite reaching the apex; a moderately broad central streak; 
a rather narrow streak along the dorsum narrowly edged with 
brown just before the tornus. The hind-wings are dull whitish- 
ochreous. The cilia of all the wings are white. 
The perfect insect appears in January and February. 
It is not a common species. 
CRAMBUS DICRENELLUS. 
(Crambus dicrenellus, Meyr., Trans. N.Z. Inst., xv., 22.) 
(Plate XoXy fig 13 O:) 
This species has occurred at Lake Peel near Mount 
Arthur at an elevation of about 4,000 feet above the sea- 
level, Castle Hill at about 2,000 feet, Springfield, Arthur’s 
Pass, and in the Rees Valley near Lake Wakatipu. 
The expansion of the wings is about 14 inches. The fore- 
wings are brownish-ochreous with brassy green reflections, espe- 
cially near the middle; there is a very narrow longitudinal white 
streak on the costa, becoming broader at ‘about 3; a slender 
slightly curved longitudinal white streak from the base to the 
termen; an indistinct whitish shading along the dorsum. The 
head is clear white, except behind the eyes; the palpi brown, 
except on their inner surfaces which are white, and the thorax 
brown with a broad central white band. The hind-wings are 
dull white, shaded with very pale greyish-brown near the apex. 
The cilia of all the wings are dull white. 
The perfect insect appears in January. It is rather 
a local species. This insect is very closely allied to Cram- 
bus isochytus, but is considerably smaller and the white 
dorsal line of the fore-wings is usually less distinct than in 
that species. 
CRAMBUS DIPLORRHOUS. 
(Crambus diplorrhous, Meyr., Trans. N.Z. Inst., xvii., 136.) 
(Plate XX., fig. 19 9.) 
This species has occurred at Castle Hill and on the 
mountains around Lake Wakatipu at elevations of from 
2,000 to 5,000 feet above the sea-level. 
The expansion of the wings is about 14 inches. It resem- 
bles Crambus dicrenellus but is considerably larger; the apex 
of the fore-wing is less pointed, the termen straighter and the 
uppermost white streak slightly below the costa instead of actu- 
ally on the costa. 
The perfect insect appears in December, January and 
February, and frequents dry situations on the mountain 
sides. 
CRAMBUS. OPPOSITUS. 
(Crambus oppositus, Philp., Trans. N.Z. Inst., xlvii., 197.) 
(Plate XLIV., fig. 1 @, 2 9.) 
This very, distinct species was discovered by Mr. Phil- 
pott on Mount Cleughearn near Lake Monowai. It also 
occurs on the Hump Range, Southland. 
The expansion of the wings is slightly over 1$ inches. The 
fore-wings are blackish-grey with very strong brassy \reflections; 
there is a broad white stripe from the base a little above the 
middle, which is slightly curved downwards before it reaches 
the termen; the costa and dorsum are narrowly edged with 
white; the top of the head and a narrow central band on the 
thorax are also white. The hind-wings in the male are dark 
blackish-grey; in the female very pale whitish-ochreous. The 
female also has the termen of the fore-wings narrowly clouded 
with white. A 
The perfect insect appears in December and January 
and is found on open country between 3,000 and 4,000 
feet above the sea-level. 
Described and figured from specimens kindly given to 
me by Mr. Philpott. 
CRAMBUS SCUTATUS. 
(Crambus scutatus, Philp., Trans. N.Z. Inst., xlix., 242.) 
(Plate XLIV., fig-93 4.) 
This handsome species was discovered by Mr. Philpott 
on Longwood Range, Southland, at an elevation of about 
2,700 feet above the sea-level. 
The expansion of the wings is nearly 14 inches. The fore- 
wings, which have the costa rather strongly arched before the 
apex, the termen very oblique, are deep bronzy-ochreous; there 
is a narrow whitish ‘streak along the costal edge except near 
the apex, where it leaves the edge and divides into two; a 
broad, clear, white, central longitudinal streak, finely divided 
by a black line near the termen and a rather broad whitish 
streak along the dorsum. The hind-wings are dark grey. The 
cilia of all the wings are very pale brownish-ochreous. 
This species closely resembles C. oppositus but the cos- 
tal and dorsal streaks are much broader and the fore-wings 
brighter coloured than in that species. 
The perfect insect appears at the end of December. 
Deseribed and figured from a specimen in Mr. Phil- 
pott’s collection. 
CRAMBUS HETERAULUS. 
(Crambus heterdulus, Meyr., Trans. Ent. Soc. Lond., 1905, 225.) 
(Plate XX., fig. 37 9.) 
This species was discovered on the Humboldt Range 
at the head of Lake Wakatipu, occurring at elevations of 
from 3,600 to 4,000 feet. 
Routeburn ; Valley. 
The expansion of the wings is about 14 inches. The fore- 
wings are brownish-ochreous with strong brassy reflections; 
there is a rather narrow, central, longitudinal, white streak 
FROM THE BASE TO ABOUT TWO-THIRDS, thence continued 
as three rather obscure white interneural lines to the termen; 
there are two indistinct triangular white marks on the termen 
below the apex, and a cloudy white mark on the costa just before 
the apex; a very slender blackish streak is situated below the 
central stripe, and another similar line above and beyond the 
end of the central stripe. The hind-wings are dull white, darker 
near the apex. The cilia of all the wings are white. 
The perfect insect appears in February and March. 
It is evidently a local species, but common where 
found, | 
It is also very common in the 

