About Plastingia naga de Nicéville, 1883
Plastingia naga, commonly known as the chequered lancer, has distinct wing markings. On the underside of its wings, black veins and black rectangular spots sit against a greyish-white base colour. The upperside of the wings has yellow-orange streaks at the wing bases. For males, the upperside of the forewing is dark brown, and features transparent (glass-like, or hyaline) white spots. These include two cell spots: one at the cell-end, and one above the discal spot in space 2. Additional spots are present in spaces 3, 6, and 7, and there is a non-hyaline streak in space 1b. The male hindwing has an obscure, pale yellow streak in the cell, plus inter-neural streaks. Females of the species are generally larger, darker, and have fewer spots than males. The spot in space 7 and the lower cell spot on the forewing may be absent in females. The abdomen of the chequered lancer is striped black and white, and the antenna has a whitish band located just after the club. This butterfly has a wide distribution, ranging from Assam through Myanmar, Thailand, Laos, Malaysia, Singapore, Borneo, and Indonesia, to the Philippines. It prefers shaded areas and is most commonly found in forests.