Subgenus XENOLEUCOPIS Malloch

XENOLEUCOPIS Malloch, 1933: 384 . Proposed as subgenus. Type-species: Leucopis cilifemur Malloch, 1933: 384 (original designation). References — Malloch, 1933: 384 (in key); Stuardo Ortiz, 1946: 150 (catalog); McAlpine, 1960: 52 (note), 54 (in key); Tanasijtshuk, 1986: 181 (revision, Palaearctic species), 2003: 169 (distribution), 174 (classification), 175 (comment); Gaimari & Havill, 2021: 27 (in key), 31 (biology).