Contributions to the knowledge of the genus Tonkinaphaenops Deuve, 2013 from China and Vietnam (Coleoptera: Carabidae: Trechinae) Author Huang, Sunbin Author Tú, Výõng Tân Author Phú, Ph ạm Văn Author Tian, Mingyi Author Faille, Arnaud text Zootaxa 2019 2019-11-26 4701 1 35 53 journal article 24795 10.11646/zootaxa.4701.1.3 1fb77063-018a-4222-8733-9450729ac222 1175-5326 3557803 668205B0-B6E9-48F3-9E21-87C534CDC837 Key to the species of the genus Tonkinaphaenops Deuve, 2013 1. The 1 st humeral pore of marginal umbilicate series located before the 2 nd pore...................................... 2 - The 1 st humeral pore of marginal umbilicate series located behind the 2 nd pore........................ T. marinae Deuve 2. Elytra with very little marked shoulders; the 3 rd pore of marginal umbilicate series much closer to the 2 nd than to the 4 th ......................................................................................... T. jingxicus sp. nov. - Elytra with quite distinct and very marked shoulders......................................................... 3 3. The 3 rd pore of marginal umbilicate series equidistant from the 2 nd and the 4 th ..................... T. yinquanicus sp. nov. - The 3 rd pore of marginal umbilicate series closer to the 2 nd than to the 4 th .......................................... 4 4. Elytra convex, amygdaloid; posterior pronotal setae lacking................................. T. impunctatus sp. nov. - Elytra long, poorly convex and subparallel, slightly narrowed backwards; posterior pronotal setae present.................................................................................................... T. anthonyi sp. nov.