Neoascia tenur


    Wing length 3 to 5 mm. This tiny species is similar to N. geniculata but in the male the third antennal segment is relatively narrow, and about one and a half times as long as broad. The female of this species has less waisted lateral margins to tergite two than in N. geniculata. The male has a yellow band on the abdomen on tergite three, whilst the female may be all black or have various spots and bars on tergites two and three.

    Similar Species

    Neoascia geniculata

    Identification difficulty

    Marshes and fens, especially by the edges of standing water.

    When to see it

    April to November peaking in July.

    UK Status

    Widespread and fairly common in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map