New species in the sap beetle genus Soronia Erichson (Coleoptera: Nitidulidae Nitidulinae) from China Author Chen, Xiaoxiao 0000-0003-3390-3372 Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi 712100, China & chenxiaoxiao @ nwafu. edu. cn; https: // orcid. org / 0000 - 0003 - 3390 - 3372 chenxiaoxiao@nwafu.edu.cn Author Huang, Min Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi 712100, China text Zootaxa 2021 2021-01-15 4908 3 417 425 journal article 8780 10.11646/zootaxa.4908.3.6 3bf755cf-854f-42c9-a092-d0a9837c3877 1175-5326 4442150 4F3CDA8B-7991-473F-A852-8C6875A057C5 Key to species of Soronia from China based on males 1. Protibia simple ( Fig. 29 )................................................................................ 2 - Protibia bent abruptly ( Figs. 27, 30 )....................................................................... 4 2. Pronotum widest at basal 1/3, lateral margin arcuate; elytra with tubercles ( Fig. 9 )............ S. gratiosa Kirejtshuk, 1988 - Pronotum widest basally, lateral margin straight; elytra smooth ( Figs. 5 , 11 )....................................... 3 3. Scape subtriangular; terminal antennomere rounded apically ( Fig. 25 ); prosternal process truncate apically ( Fig. 6 ); median lobe stout ( Fig. 20 )................................................................ S. magnipunctura sp. nov. - Scape hemispherical; terminal antennomere pointed apically ( Fig. 11 ); prosternal process rounded apically ( Fig. 12 ); median lobe slender ( Fig. 18 ).............................................................. S. grisea ( Linnaeus, 1758 ) 4. Pronotum obviously wider than elytra..................................... S. shibatai Hisamatsu & Hisamatsu, 2008 - Pronotum narrower than elytra ( Figs. 1 , 7 )................................................................. 5 5. Body small, < 6 mm long............................................................................... 6 - Body large,> 6 mm long................................................................................ 7 6. Inner margin of mesotibia strongly arched ( Fig. 1 )............................................. S. expansa sp. nov. - Inner margin of mesotibia moderately arched ( Fig. 8 )..................................... S. xiangxiyuanica sp. nov. 7. Protibia with outer apical angle nearly right; tegmen truncate apically...................... S. laevigata Kirejtshuk, 1984 - Protibia with outer apical angle blunt; tegmen broadly rounded apically.......................................... 8 8. Body slender; dorsal surface with indistinct tubercles; protibia narrow in proximal 3/5, strongly widened and curved at distal 2/5............................................................................. S. merkli Kirejtshuk, 2005 - Body stout; dorsal surface prominently tuberculate; protibia widened at inner margin of distal 2/5.... S. fracta Reitter, 1884