Five new species of Nazeris Fauvel in Guangxi, China (Coleoptera, Staphylinidae, Paederinae) Author Hu, Jia-Yao Author Qiao, Yu-Jia text Zootaxa 2019 2019-01-08 4543 3 431 441 journal article 27696 10.11646/zootaxa.4543.3.8 a6fad20b-7037-4fec-abad-93014894e0db 1175-5326 2617913 5D85B2BA-EF35-4C83-A373-D07F382D6760 Key to species of Nazeris in Guangxi , China 1 Head with non-umbilicate punctation ( Fig. 35 ).............................................................. 2 - Head with umbilicate punctation ( Fig. 7 )................................................................... 3 2 Pronotum with narrow impunctate elevation in posteriorly half ( Hu & Li 2017: 337, Fig. 15 ); dorso-lateral apophyses of aedeagus not widened near middle in ventral view ( Hu & Li 2017: 337, Fig. 18 ).................... N. alatus Hu & Li, 2017 - Pronotum with unconspicuous or lacking impunctate elevation in posteriorly half ( Fig. 35 ); dorso-lateral apophyses of aedeagus widened near middle in ventral view ( Fig. 38 ).................................... N. yanzhuqii Hu & Qiao , sp. n. 3 Body reddish brown ( Fig. 17 ), at most 6.0 mm.............................................................. 4 - Body dark brown ( Fig. 25 ), at least 6.1 mm ................................................................ 13 4 Head and pronotum with fine microsculpture ( Figs 18, 19 ).............................. N. rugosus Hu & Qiao , sp. n. - Head and pronotum lacking microsculpture................................................................. 5 5 Abdomen with fine microsculpture on all tergites........................................... N. qini Hu & Li, 2012 - Abdomen lacking microsculpture......................................................................... 6 6 Dorso-lateral apophyses of aedeagus extending to the same level as apex of the median lobe.......................... 7 - Dorso-lateral apophyses of aedeagus extending much beyond apex of median lobe.................................. 8 7 Ventral process of aedeagus narrow, constricted to sharp apex in ventral view ( Hu et al . 2012 : 36, Fig. 4).............................................................................................. N. dayaoensis Hu & Li, 2012 - Ventral process of aedeagus conspicuously broad, with round apex in ventral view ( Assing 2016: 307, Fig. 11 )........................................................................................... N. latilobatus Assing, 2016 8 Ventral process of aedeagus nearly triangular, with narrow apex in ventral view ( Assing 2016: 309, Fig. 16 )................................................................................................ N. obtortus Assing, 2016 - Ventral process of aedeagus broad, with wide apex in ventral view............................................... 9 9 Ventral process of aedeagus provided with a pair of apicad narrow processes on dorsal side of apex ( Hu et al . 2012 : 38, Fig. 12 ) N. luoi Hu & Li, 2012 - Ventral process of aedeagus lacking processes near apex...................................................... 10 10 Ventral process of aedeagus with small semi-circular excision at apex in ventral view ( Fig. 15 ).................................................................................................. N. maoershanus Hu & Qiao , sp. n. - Ventral process of aedeagus lacking excision at apex in ventral view............................................ 11 11 Ventral process of aedeagus with round apex in ventral view and with a pair of round basal laminae ventrally ( Hu et al . 2013 : 87, Fig. 4).................................................................. N. damingshanus Hu & Li, 2013 - Ventral process of aedeagus with truncate apex in ventral view and with a pair of thin basal laminae ventrally........... 12 12 Dorso-lateral apophyses of aedeagus roundly widened at apex in ventral view ( Hu & Li 2017: 336, Fig. 13 )........................................................................................... N. huapingensis Hu & Li, 2017 - Dorso-lateral apophyses of aedeagus narrowed at apex in ventral view ( Hu et al . 2012 : 39, Fig. 16 ).... N. tani Hu & Li, 2012 13 Dorso-lateral apophyses of aedeagus extending slightly beyond apex of ventral process............................. 14 - Dorso-lateral apophyses of aedeagus not reaching apex of ventral process........................................ 16 14 Dorso-lateral apophyses of aedeagus broad, distinctly widened near middle ( Hu et al . 2012 : 41, Fig. 28 )................................................................................................ N. megalobus Hu & Li, 2012 - Dorso-lateral apophyses of aedeagus slender, not widened near middle.......................................... 15 15 Male sternite VII shallowly concaved in the middle ( Fig. 26 ); dorso-lateral apophyses of aedeagus widened near apex in ventral view ( Fig. 28 )............................................................. N. yuyimingi Hu & Qiao , sp. n. - Male sternite VII not concaved in the middle ( Hu & Li 2017: 340, Fig. 26 ); dorso-lateral apophyses of aedeagus not widened near apex in ventral view ( Hu & Li 2017: 340, Fig. 28 ).................................. N. chenyanae Hu & Li, 2017 16 Dorso-lateral apophysis of aedeagus greatly expanded in apical half ( Hu et al . 2012 : 42, Fig. 34 )... N. grandis Hu & Li, 2012 - Dorso-lateral apophysis of aedeagus slender, not expanded in apical half......................................... 17 17 Ventral process of aedeagus extremely elongate, about twice as long as dorso-lateral apophysis ( Hu et al . 2013 : 88, Fig. 10 )................................................................................ N. longilobus Hu & Li, 2013 - Ventral process of aedeagus not extremely elongate.......................................................... 18 18 Ventral process of aedeagus with round apex ( Assing 2016: 307, Fig. 4 )..................... N. bihamatus Assing, 2016 - Apex of ventral process of aedeagus divided into two branches in ventral view.................................... 19 19 Sternite VII with posterior margin weakly prominent at middle ( Hu & Li 2017: 338, Fig. 21 ); ventral process of aedeagus with thin apical branches ( Hu & Li 2017: 338, Figs 23, 24 ); dorso-lateral apophyses of aedeagus slightly curved in lateral view ( Hu & Li 2017: 338, Fig. 24 ).............................................................. N. exilis Hu & Li, 2017 - Sternite VII with posterior margin truncate at middle ( Fig. 31 ); ventral process of aedeagus with wide apical branches (Figs 3 3, 34 ); dorso-lateral apophyses of aedeagus straight in lateral view ( Fig. 34 ).............. N. biacuminatus Hu & Qiao , sp. n.