A key to Grouvellinus Champion, 1923 from mainland China with descriptions of two new species (Coleoptera, Elmidae) Author Bian, Dongju Author Sun, Haibin text ZooKeys 2016 623 89 104 http://dx.doi.org/10.3897/zookeys.623.9610 journal article http://dx.doi.org/10.3897/zookeys.623.9610 1313-2970-623-89 1E2C7E9156884560A69434A58213C2FA Taxon classification Animalia Coleoptera Elmidae Grouvellinus babai babai Nomura, 1963 Figures 5-6 Grouvellinus babai babai Nomura, 1963: 55. TL: China, Taiwan. Distribution. China: Taiwan. Material examined. 1 male: "Taiwan, Taipei / Wanli 13. 8. 90 / M.L. Jeng (111)". Figures 5-8. Habitus. 5-6 Grouvellinus babai babai Nomura, 1963 7-8 Grouvellinus hydropetricus Jeng & Yang, 1998, paratype 5, 7 dorsal view 6, 8 ventral view. Scale bar: 1 mm. Photograph by Dongju Bian.