This rapid-flying Rapala
is the largest in the genus in Malaysia and Singapore. Above, the
wings are brown with paler patches in the forewing cell and hindwing costa.
The underside is a pale yellow, marked with black bars on the forewings.
The hindwing carries a threadlike white-tipped tail with the usual Rapala
lobe between veins 1a and 1b.
The species is not rare in Singapore,
and is encountered in the nature reserves. On good days, up to 5
individuals can be spotted. The butterfly flies rapidly, and has
a habit of settling on the undersides of leaves as it zips from perch to
perch.
Its unique yellow colour which
is different from all the various typical Rapala species found in
Singapore has earned it the unofficial common name of Yellow Flash amongst
the butterfly enthusiasts. |