Taxonomy of the genus Medhiama Bordoni, 2002 (Coleoptera: Staphylinidae, Staphylininae, Xantholinini) with descriptions of three new species Author Zhou, Yu-Lingzi Author Zhou, Hong-Zhang text Zootaxa 2012 3478 169 191 journal article 10.5281/zenodo.282239 b8acb8ee-6490-4aa4-a002-52468cc2587d 1175-5326 282239 Key to species of the genus Medhiama Bordoni (Excluding three species known from single females) 1 Body relatively large, longer than 8 mm .................................................................... 2 - Body medium or small, shorter than 8 mm .................................................................. 3 2 Body black in color; parameres of aedeagus broad and foot-like.......................... Medhiama nigromagna sp. n. - Body brown in color; parameres of aedeagus simple and lobed............................... M. shichuanica Bordoni 3 Distance between head punctures longer or subequal to puncture diameter......................................... 4 - Distance between head punctures obviously less than puncture diameter.......................................... 6 4 Antennomere II shorter than antennomere III.................................................. M. zhengi Bordoni - Antennomere II subequal to or slightly longer than antennomere III.............................................. 5 5 Number of punctures in admedian row on pronotum being more than 10...................... M. liupanshanensis sp. n. - Number of punctures in admedian row on pronotum being 4................................. M. lanzhouensis Bordoni 6 Tempora, not wided and parallel.......................................................................... 7 - Tempora widened outwards.............................................................................. 8 7 Pronotum of same width as head; internal sac of aedeagus entirely bearing dense, very sclerotized spines.................................................................................................... M . wallstromi Bordoni - Pronotum narrower than head; internal sac of aedeagus bearing sparse spines on the......................median portion.................................................................................. M . schawalleri Bordoni 8 Eye tiny, less than 1/5 of tempora length................................................................... 9 - Eye small, approximately 1/4 of tempora length............................................................ 10 9 Width of head longitudinal impunctate region ca 4–5 puncture diameters............................ M. puetzi Bordoni - Width of head longitudinal impunctate region ca 2–3 puncture diameters....................... M. rhododendri Bordoni 10 Abdominal punctures sparsely distributed; parameres of aedeagus foot-like................... M. xiaolongmenensis sp. n. - Abdominal punctures densely distributed; parameres of aedeagus not foot-like.................................... 11 11 Parameres complex, hook-like............................................................ M. paupera (Sharp) - Parameres simple, substraight........................................................................... 12 12 Inner sac with two pairs of large spines..................................................... M. shanica Bordoni - Inner sac without distinct spines......................................................... M. formosana Bordoni