Genus Cepa Thompson & Vockeroth, 1999 in Thompson, 1999a

Xela Thompson & Vockeroth, 1999: 340 in Thompson 1999a. Type-species, Xela alex Thompson (Thompson, 1999a: 341) . Refs. Thompson, 1999a: 341 (desc.); Thompson, 2007: 167 (desc. & key); Barahona-Segovia & Barceló, 2019: 431 (desc. & key).