Heterochaeta may refer to: Heterochaeta (mantis), a genus of mantises in the family Toxoderidae Heterochaeta, a genus of annelids in the family Naididae, synonym of Baltidrilus Heterochaeta, a genus of copepods in the family Heterorhabdidae, synonym of Heterorhabdus Heterochaeta, a genus of plants in the family Poaceae, synonym of Ventenata Heterochaeta, a genus of plants in the family Asteraceae, synonym of Aster