Emery, 1925d: 35; Taylor & Brown, 1985: 125; Taylor, 1987a: 47; Bolton, 1995b: 275.
Wheeler, 1917f: 15 (diagnosis, review of genus); Emery, 1925d: 35 (diagnosis); Bolton, 1994: 50 (synoptic classification); Bolton, 1995a: 1051 (census); Shattuck, 1999: 97 (synopsis); Shattuck, 2015: 283 (diagnosis, all species revision, key); Cantone, 2017: 162 (brief male diagnosis).