Revision of the Neotropical Neurigoninae (Diptera: Dolichopodidae) II: Argentinia PARENT, Dactylomyia ALDRICH, Macrodactylomyia gen. nov., and Systenoides gen. nov., with the definition of a new tribe Dactylomyiini

The Neotropical species of the new tribe Dactylomyiini comprising the genera Argentinia PARENT, Dactylomyia ALDRICH, Macrodactylomyia gen. nov., and Systenoides gen. nov (Diptera: Dolichopodidae) are revised. Diagnoses and keys to genera and species are given. The species Argentinia bickeli spec. nov., Dactylomyia mexicana spec. nov., Macrodactylomyia magnicauda spec. nov., and Systenoides paraguayensis spec. nov. are described as new. The following species are transferred to the genus Dactylomyia: Neurigona bicolor VAN DUZEE, Neurigona coruscans PARENT, and Neurigona decora ALDRICH. Coelinium unicolor PARENT is transferred to Argentinia. Dactylomyia parenti nom. nov. is proposed as a new name for Dactylomyia bicolor (PARENT). Neotypes are designated for Dactylomyia decora (ALDRICH) and Dactylomyia lateralis (SAY). The genus Notobothrus PARENT is transferred to the subfamily Peloropeodinae. A phylogenetic analysis of the included genera is presented. The new tribe Dactylomyiini forms a monophyletic group. The genera Dactylomyia, Macrodactylomyia, and Systenoides are closely related, whereas Argentinia forms the more ancestral clade within the tribe.