Tisamenus asper is a stick insect species (Phasmatodea), in the family of the Heteropterygidae endemic to the Philippine island Luzon.

In Tisamenus serratorius there are pairs of spines directed diagonally to the side, the length of which decreases from front to back.

A male and a female syntype are deposited in the Museo Nacional de Ciencias Naturales in Madrid.

While the status of the male is questionable, the female labeled by Bolivar is certainly a syntype of Tisamenus asper.

[3] The original name was officially restored in 2004 by Oliver Zompro, who transferred or retransferred all Filipino species previously listed in Hoploclonia to the genus Tisamenus.