A–D Characteristics and habitats of Eupolyphaga species from Minjiang River Basin A head of female E. robusta, ventral view B head of female Eupolyphaga udenostyla Qiu, sp. nov., ventral view C supra-anal plate of female E. robusta, dorsal view D supra-anal plate of female E. udenostyla Qiu, sp. nov., dorsal view E ootheca of E. udenostyla Qiu, sp. nov., lateral view F same, close-up view to show the serration G a living male E. udenostyla Qiu, sp. nov. H a living female E. udenostyla Qiu, sp. nov. I, J habitats of E. udenostyla Qiu, sp. nov., in Keku Township, Wenchuan County, Sichuan Province. Scale bars: 0.2 cm (E); 0.1 cm (F). Photographs G–J by LQ. White arrows indicate the ocelli.