Eristalinus sepulchralis (Linnaeus, 1758)
Eristalis sepulchralis Linnaeus in Coe (1953).
Biology & ecology:
The larva of this species is of the ?long-tailed?, aquatic type, occurring in rotting vegetation around ponds and marshes especially when enriched with animal dung, etc. It can also breed in polluted conditions, such as the run-off from dung heaps and silage clamps. Adults can often be seen settled on bare mud or swept from long vegetation near breeding places, and may be found visiting a wide range of flowers. Adults overwinter.
Widely distributed and often abundant in wetlands in southern Britain north to Cumbria. It is especially abundant in lowland and coastal wetlands (e.g. coastal grazing marshes). There are scattered records from the Central Lowlands and some coastal localities in south and west Scotland.
Status & conservation:
There has been decline in the frequency of occurrence since the late 1990s. This has been extremely noticeable during fieldwork and seems to reflect changes within the wider assemblage of wetland hoverflies.