15th Annual Smithsonian.com Photo Contest
The size of hoverflies varies depending on
the species. Some, like members of the
genus Baccha, are small, elongated, and
slender, while others, like members of
Criorhina, are large, hairy, and yellow and
black. As members of the Diptera, all
hoverflies have a single functional pair of
wings (the hind wings are reduced to
balancing organs). They are brightly
colored, with spots, stripes, and bands of
yellow or brown covering their bodies. Due
to this coloring, they are often mistaken for
wasps or bees; they exhibit Batesian
mimicry. Despite this, hoverflies are
harmless With a few exceptions, hoverflies
are distinguished from other flies by a
spurious vein, located parallel to the fourth
longitudinal wing vein. Adults feed mainly
on nectar and pollen. They also hover
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||Sept. 2, 2017, 12:48 a.m.