Bladed Rhino Beetle
"This beetle's razor-sharp horns demand that you handle it with care. Boil the horns alongside monster parts to concoct an elixir that will raise your attack power."
The Bladed Rhino Beetle is an insect found in Breath of the Wild. They can typically be found on the sides of trees around Hyrule, most commonly in the grassy plains of Necluda. A group of beetles can be found on the trees as Link leaves the Shrine of Resurrection for the first time. They can be sold to shop-vendors all over Hyrule for 4 Rupees each.
A Bladed Rhino Beetle can be cooked alongside monster parts to create Elixirs. The Bladed Rhino Beetle will give Link a might boost. When cooked with a monster part that has no specific enhancement, such as a Bokoblin Horn, Link will create a Mighty Elixir. This will temporarily increase Link's attack power. If Link cooks a Bladed Rhino Beetle along with food, it will result in Link making Dubious Food.
Hyrule Compendium entry of the Bladed Rhino Beetle.