Platycheirus tarsalis (Schummel, 1836)
Biology & ecology:
A woodland species that is typically found along herb-rich rides, woodland edges or hedgerows. In spring it is most often found visiting the flowers of Garlic Mustard Alliaria petiolata but it will visit a range of other flowers such as Greater Stitchwort Stellaria holostea. The larva is unknown.
Widespread and common throughout much of southern England as far north as southern Lancashire. It is apparently absent from much of Wales and from East Anglia. Overall it occurs north to the highlands of Scotland.
Status & conservation:
Status:. Trends suggest that this species has undergone a decline in the past 25 years. However, there are localised areas where field recording suggests that populations are stable.