Neoascia (Neoasciella) interrupta (Meigen, 1822).
Meigen, J.W. (1822) Systematische Beschreibung der bekannten europaischen zweiflugeligen Insekten. Dritter Theil. Schulz-Wundermann, Hamm. x + 416 pp., pls. 22-32.
Flowers visited by adults: umbellifers; Alisma plantago-aquatica, Myosotis palustris, Ranunculus, Rubus, Stachys, Stellaria, and Taraxacum (see Duty, 1995) (from Speight 2010).
The flight period of N. interrupta is from the beginning of May to September, with a peak in June (Speight 2010).
N. interrupta ranges from Fennoscandia south to central France; from Britain (southern England) eastwards through central Europe (and the former Yugoslavia) into European parts of Russia and the Caucasus and on into western Siberia (Speight 2010).
Adults fly along the edge of emergent Phragmites and Typha stands, on their water side (as opposed to the bank side) (Speight 2010).
N. interrupta becomes increasingly coastal towards the northern edge of its range in western Europe, where it occurs primarily in association with coastal lagoons containing beds of reeds or Typha; further south and in central Europe the species occurs round the edges of permanent standing-water bodies from small ponds up to the scale of large lakes; also along the margins of the potomal stretches of major rivers, where stands of reeds or tall sedges occur, or along standing-water ditches with abundant emergent vegetation of, for example, Apium (Speight 2010).
unless otherwise stated