Thailand, Malaysia &
Family - HESPERIIDAE
The genus Koruthaialos
comprises of 4 species, all of which are endemic to the
Oriental region. In West Malaysia there are 2 species -
sindu. In sindu the orange band
extends as far as the leading edge of the forewings.
Koruthaialos rubecula is found in
Bangladesh, Myanmar, Thailand, Laos, Vietnam, the Philippines, and
south through the Malay archipelago to Sumatra, Borneo, Sulawesi and
This is a common species found in disturbed
forested habitats including roadsides, quarries, parks, gardens and
forest glades, at elevations between sea level and about 500 metres.
It often shares its habitats with K. sindu,
which is the more abundant of the 2 species.
The early stages of all
Koruthaialos species appear to be unrecorded. It is almost
certain, based on related genera, that the eggs will be dome-shaped
and laid singly on grasses. It is also fairly safe to assume that
the larva will be green, and will have thin dark lines along it's
back and sides. As with other Hesperiines it will feed nocturnally,
and spend it's days hidden inside a shelter which has been
constructed by rolling a grass blade into a tube, held together with
strands of silk. The pupa will be formed within a similar
Unusually for a
Hesperiine, the adults commonly bask with the wings almost fully
open, although they also adopt the more usual position in which the
forewings are held at a 45° angle, and the hindwings held flat.
rubecula, Ulu Gerok, West Malaysia ©