Periscelididae Oldenberg, 1914
- GBIF Backbone Taxonomy
Diagnosis. Head: Frons with 1 - 2 fronto-orbital setae; postvertical setae present and divergent or absent. Pedicel cap-like and with a dorsal cleft, bearing 1 or more dorsoapical setae; basal flagellomere frequently sharply deflexed, arising from ventral surface of pedicel; arista bipectinate. Face uniformly sclerotized and arched, setose laterally. Thorax: Dorsocentral setae usually 2 (0 + 2), sometimes 1 (0 + 1), none presutural; posterior intra-alar seta reduced; scutellum with 1 - 2 pairs of marginal setae; scutellar disc bare; anepisternal seta usually lacking (present in Planinasus and new genus of Stenomicrinae). Wing: subcosta rudimentary, not reaching costa, but not fused apically with vein R 1; no costal breaks (a weakness in the costa just apicad of the humeral crossvein in Planinasus); costa extended to vein R 4 + 5 or M; cell dm with a fold running entire length; cell cup present, although vein CuA 2 either well developed or extremely reduced. Midtibia bearing a prominent, apicoventral seta.