'Glossary' opens an
(in the sub-family Milesiinae)
are varied in colour and markings, some such as Helophilus
spp. are wasp mimics, while the Eristalis spp. are
bee mimics. The two
Eristalinus are glossy black with an eye pattern unique amongst British hoverflies.
The larvae of
the Eristalini live in water, breathing through a tube and
are known as rat-tailed maggots.