Heracross is a large, blue, winged bipedal beetle. It has a capsule-shaped thorax similar to Pinsir's, a pair of yellow eyes and two clawed arms and feet. Growing from its head is a large T-shaped horn, which is flanked on either side by a smaller antenna.
Heracross is a powerful but docile Pokémon. Its natural habitat is forests and its diet consists of tree sap, nectar and honey. Its strength is such that it can topple large trees if it so wished. Heracross's main weapon is its large horn, of which it is particularly proud. However, it only uses it in the wild to deter its foes, not hurt them.
In the Pokémon anime, Ash catches a Heracross in the episode A Sappy Ending. The Heracross is powerful, but also is distracted by sap, to the point where it tries to feed off the nectar of Ash's Bulbasaur's flower bulb when Bulbasaur is in sight. It is currently at Professor Oak's lab.