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rhopalocercous

adjective
rho·​pa·​lo·​cer·​cous | \¦rōpəlō¦sərkəs\

Definition of rhopalocercous 

of a cercaria

: having a tail as wide as or wider than the body

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History and Etymology for rhopalocercous

rhopal- + -cercous (from Greek kerkos tail)

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