On the Staphylinidae of the Greek island Samothraki (Insecta Coleoptera) Author Assing, Volker text Linzer biologische Beiträge 2019 2019-12-20 51 2 881 906 journal article 10.5281/zenodo.3738343 a54c5633-aca4-4be8-afde-692622b72f0b 0253-116X 3738343 Metrotyphlus ( Agnotyphlus ) samothracicus ASSING nov.sp. ( Figs 15-19 , 33) T y p e m a t e r i a l: Holotype ♂ : "GR – Samothraki [27], Therma, 40°29'40''N , 25°36'05''E , 110 m , Platanus forest , soil wash., 12.IV.2019 , V . Assing / Holotypus ♂ Metrotyphlus samothracicus sp.n. det. V . Assing 2019" (cAss). E t y m o l o g y: The specific epithet is an adjective derived from Samothrace. D e s c r i p t i o n: Body length 1.3 mm ; length of forebody 0.5 mm . Habitus as in Fig. 15 . Tarsal formula 2, 2, 2 ( Fig. 19 ). Reliably distinguished from other species of the genus only by the male sexual characters. ♂: sternites III-VIII with shallow, but extensive median impressions; sternite VIII ( Fig. 16 ) weakly oblong and nearly symmetric, posterior margin with a large median excision; aedeagus ( Figs 17-18 ) 0.15 mm long and, except internal structures, symmetric; internal structures of distinctive shapes. C o m p a r a t i v e n o t e s: Metrotyphlus COIFFAIT, 1959 previously included twelve species in two subgenera, four in the nominal subgenus and eight in the subgenus Agnotyphlus COIFFAIT, 1972 (SCHÜLKE & SMETANA 2015). Those assigned to Agnotyphlus had been recorded from the Alpi Apuane and across the southern Alps southeastwards to Istria ( Croatia ). Thus, the record of M. samothracicus expands the known range of both the genus and the subgenus southeastwards by a distance of more than 1,000 km and suggests that at least Agnotyphlus is far more widespread and diverse than presently known. The new species differs from other Agnotyphlus species by the distinctive male primary and secondary sexual characters, particularly the internal structures of the aedeagus. For illustrations of the previously described species see COIFFAIT (1972) and PACE (1997) . D i s t r i b u t i o n a n d n a t u r a l h i s t o r y: Metrotyphlus samothracicus is most likely endemic to Samothraki. Despite extensive soil washing in numerous localities, only a single male was found. It was collected in the north of the island in a moist Platanus forest at an altitude of 110 m . The locality is illustrated in Fig. 33 .