Coleoptera
Lucanidae (Stag beetles, Pinching bugs)

Cyclommatus terandus

Mostly found in the primary forest. Larvae live in decaying or soft wood of logs and stump which remain continually moist. Antenna are geniculate and relatively thick. The body is slender and purplish-brown. The mandibles are divaricate, deflexed and usually enlarge in male with a set of small tooth-like structures at the rear end. The adult male was found to attack by wounding trees of genera Shorea and Swietenia. The larvae is of economic important by recycling of organic debris back to the soil.