A Walrus Tusk Beetle. This is an adult male, which was spotted during the rainy season in northern Vietnam. Males grow to around 52 millimeter long and they have two outward growing spikes on each frontal side of the pronotum.

It has a black and shining body, with an elongated head, large compound eyes, long segmented antennae, and two long mandibles reminiscent of walrus tusks, hence its common name.