Mark Rogers has been lucky enough to spot 2 Clubtails resting on the same leaf! These are both teneral specimens with opaque eyes and glassy wings. Both the female and immature male are black and yellow though the male will mature to black and pale green. You can still sex the individuals by looking at the shape of the abdomen and the wings. The female (above) has a broad more parallel sided abdomen and smooth rounded hind edges to the wings. The male has a more waisted and club-shaped abdomen and if you look closely you can see acute hind angles on the wings which allows space for the female legs when mating.