<I>Bathycranium</I> : synonymised with <I>Syntormon</I> , distinction between <I>Parasyntormon</I> and <I>Syntormon</I> discussed and <I>S. bicolorellus</I> and <I>S. luteicornis</I> (Diptera: Dolichopodidae) redescribed

Abstract

It is demonstrated that there is no valid basis on which to sustain the monotypic genus Bathycranium Strobl and concluded that Bathycranium should be recognised as a junior synonym of Syntormon Loew (new status). The species Syntormon bicolorellus Zetterstedt (new combination) falls into a natural grouping of Syntormon species with downcurved facial hairs in females. This species and S. luteicornis Parent are redescribed. Distinctions between Syntormon and Parasyntormon are discussed.

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