Hydrometra jaczewskii Lundblad, 1933

(Figs. 1 C–D)

1933. Hydrometra jaczewskii Lundblad: Archiv für Hydrobiologie, Supplement, 12, 433.

Material examined. INDIA, MEGHALAYA, East Garo Hills District, 2 brapt. ♂, Bansa Away Village, Stream, 324 m a.s.l., 25.57994° N, 90.48708° E, 20.vi.2016, Coll. E.E. Jehamalar. West Garo Hills District, 1 mac. ♀, Gambegre Village, Skili Stream, 177 m a.s.l., 25.4343° N, 90.14153° E, 11.vi.2016, Coll. E.E. Jehamalar. West Khasi Hills District, 1 brapt. ♂, Miangshang Village, Stream, 887 m a.s.l., 25.46779° N, 91.09638° E, 12.iii.2018, Coll. E.E. Jehamalar. Reg. No. 7645/H15–7647/H15.

Diagnosis. Body length: brachypterous male 8.30–9.02 (n=3), macropterous female 9.54 (n=1); venter of abdomen black except ventrolateral margins of abdomen yellow to orange; abdomen of female strongly curved upward posteriorly; frontoclypeus short with blunt apex; caudal process slightly curved with pointed tip (Fig. 1D).

Distribution. India (Meghalaya, Fig. 4B), southeast China (Hainan) and southwest China (Yunnan), peninsular Malaysia, Myanmar, Vietnam, Indonesia (Java, Sumatra and Borneo) (Tran et al. 2010).