A revision of the genus Mesoconius Enderlein (Diptera, Micropezidae, Taeniapterinae) Author Marshall, Stephen A. text European Journal of Taxonomy 2019 2019-09-05 548 1 126 journal article 25589 10.5852/ejt.2019.548 bdc12bce-f24c-4713-8026-a1aee4193ef5 3401901 7BA0D937-437E-4252-8EF4-4F35E6B59445 Mesoconius oblitus group Diagnosis Outer vertical bristle absent, katatergite not strongly swollen. Upper frontal orbital bristle present or absent. Wing evenly infuscated brown or black, with a discal clear area or with clear spots. Male and female genitalia, where known, highly diverse, with nothing to suggest that this is a natural group. Remarks Like the M. nono group, the M. oblitus group is a heterogeneous assemblage of species that would have previously been treated as Zelatractodes . Most species in this group are known only from older types , and information on male genitalia is available for only three species out of 16. The group is shown as paraphyletic on the CO1 tree ( Fig. 50 ), which includes one undescribed species, as well as eight of the 16 named species in the group. The undescribed species is known only from a single damaged female specimen from southern Ecuador .