2 An Account of a New Moth Borer of Sugar Cane, 
Description of the Pupa. (Fig. 11.) 
Yellowish-brown ; head-end, spiracles, and hind margins of abdominal 
segments 5 to 7, below ends of elytra, reddish ; upper half of abdominal 
segments punctulate, the punctures brown, somewhat scattered. Head, 
thorax, etc., more or less roughly striate, the former produced into a short 
obtuse point. Anal segment terminating in a shining reddish knob, 
without hooks or spines, from which runs a broken centro-ventral black 
line, grooved posteriorly. Length 15 mm.; greatest width 3-50 mm. 
Pupation takes place inside the cane shoot, the pupa occupying 
a vertical position with head pointing upwards. 
When fully grown the caterpillar eats a hole through the side of 
the cane, and after lining part of its tunnel and the mouth of this hole 
with silk pupates about an inch below the opening, among rotting fibres, 
debris, etc. Upon removing the outer sheathing of a shoot containing 
a pupa this exit mouth of the tunnel, composed of webbing stiffened 
with pellets of excreta, often protrudes slightly, funnel-wise, from the 
surface. 
The pupal stage occupies from twenty to twenty-six days, a larva 
that transformed at Gordonvale 22nd November producing the imago 
on 12th December, 1915; while other larve obtained at Meringa 8th 
November, 1919, pupated five or six days later, the moths emerging 
on 9th December (24 days). Finally, additional specimens that pupated 
Sth January, 1920, emerged on the 16th (8 days later). 
Description of Moth. 
Female. (Fig. 12.) 
Fore-wings light pinkish-yellow with a broad brown-pink sub- 
costal band ; fringe composed of three rows of silvery spatulate scales. 
Outer area crossed longitudinally by sixteen sub-parallel pink lines, 
extending to outer edge of wing. Hind wings pale silvery-yellow suffused 
with grey on apical portion and border of outer margin; fringe with a 
basal band of dark-grey just outside edge of wing. Beneath :—Fore- 
wings yellow, clouded with pink on outer and grey on central areas 
respectively. Patagia large, pale yellow. Head nearly width of thorax ; 
eyes black; vertex concave, formed of two flat tufts of silvery-pink 
scales edged with yellowish. Antennz pale ochraceous, first joint large 
oblong-ovoid, concave above, a shell-like tuft of white scales arising 
from second joint; palpi brown, porrected in living specimens, but 
sometimes covering lower part of face after death. Abdomen brownish- 
black above, banded with silvery-yellow lines; dorsum of segments 1 
to 3, ochraceous ; anal segment tufted with long yellowish-pink scales. 
Ventral surface and legs brownish-pink ; centre and distal end of hind 
tibia armed with two spurs of unequal length, the outer edge densely 
fringed with long yellow hairs ; intermediate tibiz with two distal spurs. 
Wing expanse 31 mm. (about 1} inches) ; length of body 15 mm. 
