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Arixenia esau is a species of earwig in the family Arixeniida, one of two species in the genus Arixenia, the other being Arixenia camura. It has only been found on the island of Borneo.

This species was initially believed to be parasitic on bats, including the hairless bat (Cheiromeles torquatus), but is actually not a parasite. It is viviparous, giving birth to live offspring that develop in a uterus.

Description
This species was described by the entomologist Karl Jordan in 1909, when it was recorded as living within the brood pouches of wingless bats as an ectoparasite.

Biology and Life History
This species is associated with the bat flea Lagaropsylla signata, whose survival depends on easy access to hosts via the earwig.