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Cyana sp.
4802
A
single male of a species similar to pudens
or luzonica Wileman & South
was taken by S.J. Willott in the understorey of primary lowland forest at 170m
near the Danum Valley Field Centre in Sabah. It is larger (11mm) than pudens
and has paler red almost straight fasciae that meet the dorsum at
right-angles; the costa is a similar red. There is also a more orange-red
marginal band, the inner border of which is undulating but not dentate. The
discal dots are dark brown-black, three in number, the most dorsal being more of
a streak, set on CuA approximately behind the more distal of the two costal
dots. The secondary sexual scaling is on the underside only, consisting of a
round patch just basal to the postmedial, distal to which there is a
constriction, then a ridge running distad to converge with the costa. The tuft
of scales on the upperside of pudens in
the same position as the round one is absent from this species. The hindwings
are white. C. luzonica has somewhat
more oblique fasciae and, of the three black discal spots of the male, it is the
more basal that is developed into a streak. The secondary sexual characters of luzonica
are as in pudens. C. metaleuca Hampson
(Java, Bali) is similar to luzonica in
facies except the more distal two discal spots are set more obliquely, and the
basal one is less extensively elongated and does not recur in the female. In
both luzonica and metaleuca
there is a blackish streak associated with the scale tuft and groove
extending distally from the postmedial near the costa, and the underside of the
forewing is extensively reddened.
The
genitalia of the Bornean male are similar to those of luzonica and metaleuca (illustrated
by Roepke [1946a]), and have fields of coarse scobination in the aedeagus vesica
with clumps of longer spines not seen in pudens, but there are three of these clumps in the Bornean male and
only one in the other two species.
However,
whilst it is evidently distinct from the species already named, further material
of this species, including females, is needed to ensure it is indeed new to this
rather complex genus.
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