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Although the morphology of many species is
poorly known, dung beetles have been subject to much
study. They are highly beneficial as scavengers, and a few
species have been introduced intentionally from Africa to
Australia and the U.S. In addition to dung removal, their
activities enrich the soil and reduce numbers of dung-feeding
flies. Beetles can easily be
recognized by the armor-like forewings, called elytra, that
cover the membranous hindwings used for flying. The name
coleoptera means "sheath wings." Most beetles have large
prominent compound eyes, and there are many different types
of beetle antennae: threadlike, clubbed, antennae with
leaf-like structures at the tip, so-called longhorn beetles
with antennae up to 2 1/2 times their body length. The
elytra are often brightly colored and patterned, attributes
that earn some beetles the sobriquet "living jewels."
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