|Prior forms||MegaKabuterimon (Blue)|
|Cards||(Ja:) St-697, St-889|
Nature Spirits Digimon]]
AncientBeetlemon is an Ancient Insect Digimon. Possessing the attribute of "Thunder", it is one of the Ten Legendary Warriors that saved the ancient Digital World. A Mega who existed only in the distant past, its appearance is fused from many insects such as the Rhinoceros beetle and Stag beetle. Its shell has a hardness rivaling that of Chrome Digizoid, so the falx on both of its arms can cut through anything, and it can easily lift up objects hundreds of times its own weight. Its abilities were later passed on to the "Insect Digimon".
- Calamity Thunder: Attacks with a calamitous thunder which brings about super-disasters.
- Tera Blaster: Attacks with a super-electrical discharge with a thousand times the power of "Mega Electro Shocker".
AncientBeetlemon is a chimeric Digimon whose upper body is a humanoid Rhinoceros beetle (Trypoxylus dichotomus) covered in a blue and yellow armor-like exoskeleton with spikes on its shoulders and large falx at the end of its arms. Its head is eyeless and has a yellow crest on top and a long horn that forks at the tip. It has six pairs of yellow wings on its back. It's lower body is a red Stag beetle (Lucanus cervus) with six eyes. It has six legs with black thighs. It has white muscle in the torso, the brachium of its arms and its legs.
- AncientBeatmon (エンシェントビートモン)
Official romanization given by the Digimon Reference Book and used in Japanese media.
Name used in American English media.
Digimon Battle Spirit 2
D-Tector 2.0 and 3.0
Digimon Story: Super Xros Wars Red and Blue
AncientBeatmon is a Mega-level Digimon. It can be digifused during battle from MegaKabuterimon (Red), SkullScorpionmon, Okuwamon, and Flymon, and will attack with "Tera Blaster". It can also be formed from a DigiMelody.