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While most damselflies rest with
their wings folded together, most members of the
family Lestidae hold them at an angle away from
their bodies. The pterostigma (a single dark spot in
the meshwork of the leading edge near the tip of
each wing) is noticeably elongated. The
quadrilateral (a part of the wing venation, close to
the body) has an acute angle at the end. The
superior anal appendages, commonly called claspers
(body parts of male insect for clasping the female
during copulation) of male spreadwings are long and
strongly curved. |