Petalocheirus is a genus of assassin bugs in the subfamily Salyavatinae. Species in the genus have a leaf-like broadening of the foretibia, and many species are known to be predators of termites. The genus is distributed in the tropics of Africa and Asia and species in apparently closely related genera such as Platychira may need further examination.
The spelling of the genus was incorrectly emended by Burmeister in 1835 as Petalochirus. The genus Platychira was briefly considered as a synonym.
Species in the genus include: Petalocheirus bergrothi Petalocheirus brachialis Petalocheirus burmanus Petalocheirus gazella Petalocheirus indicus Petalocheirus inimicus Petalocheirus malayus Petalocheirus perakensis Petalocheirus pugil Petalocheirus rapinator Petalocheirus rubiginosus Petalocheirus schoutedeni Petalocheirus schroederi Petalocheirus sedulus Petalocheirus variegatus Petalocheirus villiersi Petalocheirus vittiventris
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