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Celerena
Walker
Type species: divisa
Walker, Bangladesh.
Synonym: Bociraza
Walker (type species recurvata Walker, Maluku).
Celerena species
all have the same sort of grey and yellow pattern as the Bornean representative,
but the yellow varies in brightness and the grey can be paler or almost black,
extending over more of the wing surface. Males are characterised by two rather
unusual features: a pleat runs for almost the length of the posterior half of
the forewing cell, most conspicuous on the underside where it contains paler,
possibly androconial scales; the hind tibia is swollen, the spurs are long, and
the dorsal portion is conspicuously produced over the first tarsal segment that
is itself expanded ventrally in a triangular plate.
On the male abdomen
(C. signata Warren) the setae in the patches on the third sternite
are about twice as long as in other desmobathrines. There are transverse lines
of hairs on the seventh and eighth sternites. The uncus is a long, slender
column, distally bifid. The valves are elongate, rectangular, bearing a central
lobe subbasally that has a fringe of stout setae.
In the female the
ductus is slender, long, expanding into a narrowly pyriform bursa. The corpus
bursae is longitudinally fluted and has a sclerotised, scobinate band running
its length as a signum, the scobination directed laterally from its central
axis.
The only host record
is of Rinorea (Violaceae) for the Andamans endemic, C. andamana
Felder & Rogenhofer (IIE unpublished records), a species very similar in
appearance to the type species.
The genus extends
from India to the Solomons but exhibits by far its greatest diversity in New
Guinea.
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