Dasysyrphus pinastri (De Geer, 1776)
Syrphus lunulatus Meigen in Coe (1953), Dasysyrphus lunulatus (Meigen) in Stubbs & Falk (1983).
Biology & ecology:
The larva is aphidophagous and arboreal, occurring on both coniferous and deciduous trees. Usually found near trees along woodland rides and edges and around mature hedgerows. Records are most frequently from or near coniferous forest and plantations. Adults visit a wide range of flowers.
This species occurs throughout mainland Britain but is seemingly more commonly recorded from Derbyshire northwards. Many of the strong concentrations of records coincide with comparatively highly coniferised areas.
Status & conservation:
There has been a substantial decrease in occurrence over the past 25 years, although less marked in the uplands. The precise reasons for the trend in the uplands may be attributable to changes in recorder effort.