Thailand, Malaysia &
Family - PIERIDAE
subfamily - COLIADINAE
Taman Negara, West Malaysia ©
From a distance
this butterfly can be mistaken for a Gandaca
or Eurema species, but it can readily
be distinguished from them by it's larger size, serrated wings,
squarish appearance, and very short antennae.
There are 5 members
of the genus Dercas -
nina and enara.
These are variously distributed from India to southern China and
Indonesia. Dercas gobrias is the only
species found in West Malaysia. Dercas
verhuelli herodorus was for many years listed as a Malayan
insect, but herodorus has now been
reclassified as a subspecies of gobrias
rather than of verhuelli.
Dercas verhuelli is found in India,
Myanmar, Thailand, Vietnam and southern China.
Dercas gobrias is found in peninsular
Malaysia, Singapore, Sumatra, Borneo and Java.
This species occurs in rainforest and temperate
evergreen forest at altitudes between about 200-1500 metres.
The larvae feed on
Males are usually
seen singly, imbibing mineralised water from wet mud or sand,
usually very close to the water's edge. They are extremely nervous,
and if disturbed usually fly up to rest on tree foliage until they
sense it is safe to return to their feeding place.