Leucozona laternaria (Müller, 1776)
Syrphus laternarius Mueller in Coe (1953).
Biology & ecology:
The larva is associated with Cavariella aphids on white umbels. Its habits and requirements appear to be very similar to L. glaucia and the two are often found together on the same flowers.
Like L. glaucia, this species is widely distributed in well-wooded lowland areas throughout Britain, and the two are often found together. Despite showing a similar gap in its distribution in eastern England, this is a more eastern species than L. glaucia, and is much less frequent in South Wales and the south-west peninsula.
Status & conservation:
There has been a non-significant decline in occurrence over the past 30 years.