A–F Details of hymen and hymen strip in Entomoneis, SEM A, B details of hymen strip of Type Two from E. sinensis sp. nov., note the two rows of linear pores (Fig. A, two arrows) on either side of the two intermittent rows of rounded pores (Fig. A, wavy arrow) C, D details of hymen strip of Type One from E. qinghainensis sp. nov., note the hymen is finely perforated over both the areolae (Fig. D arrow) and the hymen strips (Fig. D, double-headed arrow) E detail of hymen strip of Type One from E. paludosa, note the hymen is finely perforated over both the areolae and the hymen strips (double-headed arrow) F detail of hymenes from E. triundulata, note the hymenes of the areolae in the girdle bands (two arrows). Scale bars: 600 nm (A–F).