Chapman & Capco, 1951: 115, 118 (Asia checklist); Bolton, 1988b: 125 (diagnosis, review of genus, all species revision, worker key, male key); Bolton, 1995a: 1051 (census); Bolton, 1995b: 312 (catalogue); Xu & Xu, 2011: 595 (all species worker key); Luo & Guénard, 2017: 1 (all species worker key); Cantone, 2017: 225 (brief male diagnosis)
Extant: 12 valid species
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