Coelioxys (Rhinocoelioxys), MITCHELL, 1973

COELIOXYS (RHINOCOELIOXYS) MITCHELL, 1973

Type species: Coelioxys zapoteca Cresson, 1878 .

Diagnosis: The following characteristics combined (four for either sex) separate species of C. (Rhinocoelioxys) from all the other subgenera. Mesoscutellum with a distinct longitudinal median ridge (Fig. 51); posterior margin of mesoscutellum obtusely produced medially into a blunt edge (Fig. 51); axilla long, free apical portion longer or subequal to basal portion (Fig. 51); ocular hairs long (~0.12 mm) (Fig. 5). Female: S6 lateral notches obsolete, a weak impression, not interrupting outline in dorsal view ( Fig. 65). Male: postgradular areas of T 2 and T 3 with a transverse, punctate area either formed by punctures that may be fused or by few smaller punctures basally and larger punctures apicolaterally ( Fig. 66).

Comments: The phylogenetic results indicate that C. (Rhinocoelioxys) as previously defined is polyphyletic. The type species C. zapoteca as well as C. agilis and Coelioxys platygnatha Rocha-Filho & Packer, 2015 are in a different clade from the other four species that were included by Rocha-Filho & Packer (2015), which are now transferred to C. (Austrocleptria) subgen. nov. (see below). The three species are Neotropical. Rocha-Filho & Packer (2015) revised and keyed the species of this subgenus [as well as those of C. (Austrocleptria) subgen. nov.].

List of species: Coelioxys agilis *, C. platygnatha *, and C. zapoteca *.