Parahygrobia
Introduction '''''Parahygrobia natans''''' is an extinct species of adephagan beetle. It is the only member of the genus '''''Parahygrobia''''' and family '''Parahygrobiidae'''. It is known only from larvae from the Late Jurassic of Russia. Cladistic analysis has placed it as the sister group to extant Hygrobiidae.
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