Pelomyiinae Foster, 1976

McAlpine, D. K., 2007, The Surge Flies (Diptera: Canacidae: Zaleinae) of Australasia and Notes on Tethinid-Canacid Morphology and Relationships, Records of the Australian Museum 59 (1), pp. 27-64 : 43

Subfamily Pelomyiinae Foster, 1976

Included genera: Pelomyia Williston ; Pelomyiella Hendel ; Neopelomyia Hendel ; Masoniella Vockeroth. Neopelomyia differs from typical genera in facial structure, probably as a specially derived condition in this genus in connection with elongation of the proboscis. Masoniella has been placed in the Tethininae , but Foster & Mathis (2003) confirmed its placement in the Pelomyiinae .

Autapomorphies: fore coxa elongate; discal and second basal cells (dm and bm) confluent.

Shared apomorphies: lower margin of face and prelabrum displaced posteriorly on ventral surface of head (condition shared with Horaismopterinae , approached in few Tethininae ; condition probably reversed in Neopelomyia ; condition unknown to me in Masoniella ); distal section of vein 6 sharply defined (but quite desclerotized and not nearly reaching margin, condition in Masoniella unrecorded; this condition much more developed in Horaismopterinae and Apetaeninae ).

Distribution: Americas; Palaearctic Region; temperate Australia. Unlike most canacids (s.l.), these flies are not restricted to coastal habitats.