<P> Draco dussumieri is the only species found in southern India and is the western most representative out of around 42 species in the genus Draco . This species stands out as the sole member of a lineage that represents an old branch from the common ancestor of the species within the genus . One study failed to locate the appropriate mitochondrial sequence for comparison with other species . </P> <P> This species is found principally along the Western Ghats and associated hill forests of Karnataka, Kerala, Tamil Nadu, Goa in southern India . It is also reported from some parts of Eastern Ghats (Talakona) in Andhra Pradesh Nelson Annandale recorded it as "common about ten miles north of Trivandrum, but apparently very local ." It is often found in coconut and betel - nut plantations near forests . </P> <P> The southern flying lizard feeds on insects . They are strictly diurnal and sleep at night on flat surfaces . Specimens from northern Karnataka were found to feed on a large number of ants (Oecophylla smaragdina). Males display actively from February to April in Kerala, mainly in the forenoon after the sun warms them up . Males maintain small territories and bob their head and erect the gular pouch when they spot females nearby . They also change their skin colour to become silvery grey and conspicuous before gliding towards the female . They leap off with their hind legs making use of specially adapted musculature at the base of the tail before spreading the patagium . During the heat of the day in summer they rest in the cooler canopy and become active again in the late afternoon while they bask during the cooler weather . Males chase females and court them with ritualized moves . The male mounts the female and bits the nape during copulation . Males intimidate intruding males by expanding and folding their patagium and making conspicuous movements . These lizards are almost entirely arboreal . Females descend to the ground to lay eggs in soil during the monsoons . About four eggs are laid which hatch after fifty days or so . </P> <P> In a population estimate made in an areca plantation in the Western Ghats, the density was found to be about 13 per hectare . The population density was much lower, less than 2 per hectare, at Valparai which is at a higher altitude . </P>

Write the term used for winglike expansion of the skin of draco