1921.] 
Watt—A New Tortricid Moth. 
257 
A NEW TORTRICID MOTH. 
By Morris N. Watt, F.E.S. 
Harmologa polypodii n. sp. 
$ 14 mm. Head, and thorax iron blue; the posterior portion of the 
thoracic crest with a bunch of white scales. Antennae about J, brownish, 
alternate pale and dark rings. Palpi dark brown above, lighter below, 
iron blue at the tips. Abdomen dark brown. Legs dark brown above, 
lighter beneath ; tarsus annulated with broad dark and narrower pale 
brown rings. Forewings broad, costa moderately arched, apex rounded, 
termen oblique and slightly rounded ; ground-colour light brown, becoming 
somewhat pinkish in the posterior half ; a broad costal streak of iron blue 
from base to f, interrupted by four or five narrow, outwardly oblique, 
somewhat wedge-shaped, alternately short and long black bars with 
their broader ends against the costa ; a broad, outwardly oblique, apical 
bar of dull-reddish from costa at § to termen at along the inner border 
of its costal J is a narrow diffuse line of blue scales, and on its outer 
border at costa is a minute spot of blue, the terminal third of this bar is 
practically obscured or replaced by black scales, these extending dorsally 
along termen for a short distance; the apical portion of the wing cut off 
by the apical bar contains several obscure spots of light yellowish-brown 
along costa, and in the angle between the termen and the apical bar are a 
few scattered blue scales surrounding a small spot of black ; from the outer 
end of the blue costal bar is an indefinite, outwardly convex fascia of 
yellowish-brown reaching dorsum at f , this fascia is interrupted about 
the centre of the wing and below this is expanded considerably to form a 
somewhat irregular triangular area enclosing a small round spot of light 
ground-colour, there are a few scattered blue scales to its outer side at the 
costa, and about midway in the interval between it and the apical bar is a 
short narrow, outwardly oblique, costal line of yellowish-brown ; the dorsum 
is occupied by a series of four or five short bars or spots of yellowish-brown ; 
the area between the black terminal part of the apical bar and the expanded 
area of the central fascia is chiefly occupied by blue scales, a small area of 
black scales interrupting these about the middle, and a thin fascia of light 
yellowish-brown extending between this and the apical bar, another small 
black spot at tornus; a distinct blue cilial line; cilia grey, darker at their 
tips and interrupted at intervals with brown. Hind-wings pale brown, 
densely irrorated with dark-brown scales; cilia grey-brown, a broad dark- 
grey cilial line, tips of cilia light brown. 
d 12 mm. Forewings, ground-colour dark greyish-blue ; a narrow black 
costal streak from base to about \ and giving off five or six narrow, short, 
outwardly oblique black bars ; similar outwardly oblique black bars spring 
from the dorsum and tend to coalesce with those from the costa, the fourth 
almost invariably doing so and thus forming a narrow, transverse, out¬ 
wardly convex fascia across wing a little anterior to J ; a small light-brown¬ 
ish spot on costa at with a dark-brown centre and a few black scales ; 
an irregular, broad, outwardly oblique, apical bar of black from costa at f , 
where it is expanded to enclose a small spot of blue, to termen a little 
above its outer border more or less lined with blue scales most numerous 
towards termen; a series of small black spots along termen in its dorsal § ; 
17—Science. 
