A Japanese man saved the life of a giant murder hornet with his own mini-surgery by removing a parasite from its stomach.

Insect enthusiast Ebira Mosura was out in his garden when he noticed the Asian giant hornet 'showing unusual behaviour' in Tokyo, Japan.

The hobbyist had a hunch that it might have been infected with a parasite so he caught the creature and took it inside his house to 'rescue' it.