Chapman & Capco, 1951: 114 (Asia); Bolton, 1995b: 381.
Smith, 1953a: 76 (diagnosis, all species revision, key); Taylor, 1991a: 283 (review of genus, partial key); Bolton, 1995a: 1052 (census); Shattuck, 1999: 164 (Australia synopsis); General & Buenavente, 2015: 57 (Philippines species key); General, 2016b: 118 (all species key); Cantone, 2017: 233 (brief male diagnosis).
Extant: 10 valid species (2 synonyms)