A new species of Pselaphogenius Reitter, 1910 of the fiorii species group from southern Italy (Coleoptera, Staphylinidae, Pselaphinae) Author Sabella, Giorgio Author Viglianisi, Fabio Massimo Author Bekchiev, Rostislav text Zootaxa 2019 2019-04-12 4585 2 387 394 journal article 27330 10.11646/zootaxa.4585.2.12 f0388f56-ed5e-4d43-baf3-8bda92478840 1175-5326 2637282 04CF13A5-74CE-42E6-98B3-6FBB9BABE601 Key to the species of the Pselaphogenius fiorii species group 1. Antennomers III–VIII at least twice as long as wide. ♂ : Metaventrite raised in middle in conical process whose apex is located in its anterior half. First abdominal ventrite with longitudinal median depression on its entire length. ♀ : last abdominal tergite rounded at apex.................................................................................. P. fiorii - Antennomers III–VIII slightly longer than wide............................................................ 2 2. Medial elytral antebasal fovea slightly larger than lateral. Elytral carina weakly-defined. ♂ : Metaventrite always raised in conical process, never with longitudinal impression............................................................ 3 - Medial elytral antebasal and lateral fovea equal in size. Elytral carina well-defined. ♂ : Metaventrite never raised in conical process, always with longitudinal impression.............................................................. 10 3. Head at least in dorsal region distinctly reticulated and punctate, matt. Pronotum finely reticulated..................... 4 - Head and pronotum smooth and shiny.................................................................... 7 4. Pronotal lateral foveae clearly impressed and deep.......................................................... 6 - Pronotal lateral foveae slightly impressed and shallow....................................................... 5 5. ♂ : Metaventrite raised in middle in conical process rounded at the apex; dorsal surface of first ventrite raised in middle from base up to about 2/3 of its length, whose surface is entirely occupied by depression. ♀ : Last abdominal tergite bearing long and stout median spine prolonged backwards....................................................... .. P. chloe n. sp. - ♂ : Metaventrite raised in middle in conical process pointed at apex, latter located in its anterior half; dorsal surface of first ventrite occupied almost for the entire length by median longitudinal oval-shaped depression. ♀ : Last abdominal tergite ending in pointed tip.............................................................................. P. aspromontanus 6. Pronotum slightly finely wrinkled. ♂ : Aedeagus partially asymmetric with ventral lamina. Metaventrite raised in middle in conical process pointed at apex, latter located in middle. ♀ : Unknown................................... P. lucanicus - Pronotum clearly wrinkled. ♂ : Aedeagus symmetric without ventral lamina. Metaventrite raised in middle in conical process pointed at apex, latter located in its posterior half. ♀ : Last abdominal tergite rounded at the apex........... P. neapolitanus conical process pointed at apex. ♀ : Last abdominal tergite pointed at apex................................ P. calabrus - Eyes more developed (9–10 facets), elytral lateral carina very short. ♂ : Metaventrite raised in middle in large conical process rounded at apex..................................................................................... 8 7. Eyes less developed (4–5 facets), elytral lateral carina reaching about ½ of elytral length. ♂: Metaventrite raised in middle in 8. ♂ : Aedeagus with apical lamina strongly recurved at apex. ♀ : Unknown.................................. P. gardinii - ♂ : Aedeagus with apical lamina straight at apex............................................................ 9 9. ♀ : Last abdominal tergite prolonged into large and short conical tooth................................ P. conosternum - ♀ : Last abdominal tergite prolonged into long pointed spine......................................... P. argentarius 10. Head dorsally clearly wrinkled and matt. Eyes with 6–7 facets. ♀ : Last abdominal tergite rounded at apex........ P. latinus - Head dorsally smooth or with some punctures, always shiny. Eyes with 8–12 facets. ♀ : Last abdominal tergite ending in short and small conical tooth................................................................................ 11 11. Eyes with 10–12 facets, dorsal surface of head not punctate, last palpomere 0.38–0.40 mm long............ P. peloritanus - Eyes with 8–9 facets, dorsal surface of head slightly punctate, last palpomere 0.35–0.36 mm long............... P. carusoi