How beetles excrete?

Beetles excrete waste primarily through a specialized organ called the Malpighian tubules, which are responsible for filtering waste products from their hemolymph (the insect equivalent of blood). The tubules convert waste into uric acid, which is then excreted along with other solid waste through the hindgut. This process allows beetles to conserve water, making it an efficient method of excretion, especially in arid environments. The solid waste is expelled as a dry pellet, minimizing water loss.