Contribution to the knowledge of Neoperla (Plecoptera: Perlidae) from Hainan Province of China Author Chen, Zhi-Teng Author Du, Yu-Zhou text Zootaxa 2016 4144 2 243 252 journal article 10.11646/zootaxa.4144.2.6 02de6342-d4bb-47c0-9675-474c54689576 1175-5326 264488 C96FA109-D9C0-40D0-BC00-F049C93B188B Neoperla binodosa ( Wu, 1973 ) Neoperlops binodosa Wu, 1973 . Acta Entomol. Sin. 16: 109. Type locality: Hainan Province . Neoperla binodosa , Du et al. 1999 . Acta Entomol. Sloven. 7: 63. Diagnosis. Males of this species are characterized by tergum 9 having a pair of small rounded nodules medially (see figs. 85–86 in Wu 1973 ). The aedeagus has not been described. Females of this species are identified by sternum 8 not produced (see fig. 87 in Wu 1973 ). Distribution. China ( Hainan , Yunnan ).