Rhingia campestris
Rhingia campestris is a species of hoverfly, long, with a wingspan of. It is common across the Palearctic from March until November. It has a broad orange abdomen with a black line along the sides, and has the distinctive long snout of all Rhingia species. Rhingia campestris is the main pollinator for many plant species and due to its long snout it can forage on tubulous flowers. Larvae are associated with cow dung. Adults males feed on nectar, while adult females feed on protein rich pollen, reflecting the cost of developing eggs.
Description
For terms see Morphology of DipteraWing length 5.5–7 mm. Snout straight, longer than the diameter of the eye in side view. Tergites with black hind edge and side margins and often with a black mark in the middle of the tergite. Pre-genital sternite black-haired. Tibiae red.
See references for determination