Melangyna compositarum (Verrall, 1873)
Biology & ecology:
The larva is unknown. Adults are associated with coniferous woodlands and plantations where they can be found visiting flowers, especially Hogweed Heracleum sphondylium and Wild Angelica Angelica sylvestris, in rides and glades. Males hover fairly high at the edges of stands of trees.
There is considerable confusion between this species and M. labiatarum, and many recorders do not attempt to distinguish between the two. This species is said to be the more northerly of the pair, with most records from Scotland, but scattered records throughout Britain.
Status & conservation:
The frequency of occurrence plot is for M. compositarum and M. labiatarum combined. Although there has been a general decline in occurrence, there are signs of a recovery more recently.