Subgenus Wyeomyia
hosautos subspecies leucotarsis ( var. leucotarsis Lane, 1936). Syntypes (Ψ): Boa Esperança and Pocinho, Mato Grosso, Brazil (LU).
Lane (1936) described and named Wy. hosautos var. leucotarsis from eight females that differed from the nominotypical form in having much more extensive white scaling on the hindtarsi. Based on this, he inferred that the specimens either represented a new species or a variety of Wy. hosautos . He adopted the latter option because no other differences distinguished the specimens from the nominotypical form, and additional information was needed to prove that they were members of a different species. Because Lane clearly did not propose the name for an infrasubspecific entity, it is deemed to have subspecific rank from its original publication (Article 45.6.4).