Re visional notes on some European Helochares Muls. (Coleoptera: Hydrophilidae)

Author： Hansen Michael  

Publisher： Brill

ISSN： 1876-312X

Source： Insect Systematics & Evolution, Vol.13, Iss.2, 1982-01, pp. : 201-211

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Abstract

The European species of the Helochares lividus-group are examined, and it is found to include three species, H. lividus Forst., H. punctatus Sharp, and H. obscurus Müll.; thus, punctatus is considered a distinct species, and not as previously, synonymous with obscurus. Differences in morphology, distribution and choice of habitat are discussed. The relevant type material is examined.

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