Palaearctic Xantholinini of the Museum of Zoology in Lund, Sweden, with description of two new species (Coleoptera, Staphylinidae). 182 ° contribution to the knowledge of the Staphylinidae Author Bordoni, Arnaldo text Zootaxa 2007 1624 59 68 journal article 10.5281/zenodo.179260 3841a2d8-b3e9-4058-8652-de28c2673c9d 1175-5326 179260 Key to Mediterranean species of Phacophallus Coiffait, 1956 Note. The species of Phacophallus are very similar in their external characters. Since the aedeagus is reduced to a subspherical basal bulbus and lacks parameres, species identification is based on characters of the internal sac. 1. Internal sac coiled ribbon-like or tubiform, very long and narrow, with scales and/or spines.................... 2 - Internal sac large, short and flat, covered by minute scales. Tunisia .................................. P . tuniseus n. sp. 2. Internal sac totally covered by very dense scales, without spines. France , Sicily......................................... ............................................................................................................ P. pallidipennis (Motschulsky, 1858) - Internal sac covered by sparse scales, with a proximal large spine and a median series of short and large scales. Mediterranean ......................................................................... P. parumpunctatus (Gyllenhal, 1827)