Seoda Enderlein, 1935
Seoda Enderlein, 1935: 248 . Type species: Pericoma labeculosa Eaton, 1893, by original designation.
= Krekiella Vaillant, 1971: 72 . Type species: Pericoma labeculosa Eaton, 1893, by original designation.
Diagnosis. Frons fused with clypeus into single facial plate; protruding over lower median eye margin (fig. 2A); flagellomeres asymmetrically nodiform with ring of filiform ascoids, pair of digitiform ascoids often present as well; flagellomere 13 with long neck, flagellomere 14 with elongate apiculus; R2+3 not connected to R4; Apex of wing between apices of R4 and R5 (fig. 2B); Aedeagus broad in dorsal and ventral views, symmetrical, distiphallus consisting of two jointed phallomeres with sclerotized joints and more or less sclerotized lateral appendages; aedeagus encapsulated in parameral sheath; short unpaired median parameral sclerite present (figs 2C, 2D); Proctiger elongate diamond-shaped; Surstylus with fringed tenacula; Epandrium with single aperture.