Hydrometra jaczewskii Lundblad, 1933

Jehamalar, E. Eyarin & Chandra, Kailash, 2020, A new species of Tenagogonus Stål (Hemiptera: Heteroptera: Gerridae) and first records of eight species of aquatic and semi-aquatic Heteroptera from India, Zootaxa 4718 (1), pp. 95-107 : 98

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).

Figures

FIGURES 1A–M. A, Ranatra libera, male, dorsal view; B, apical part of the paramere of R. libera, lateral view; C, Hydrometra jaczewskii, male, dorsal view; D, same, abdominal tip, lateral view; E, H. longicapitis, female, lateral view; F, Strongylovelia balteiformis, apterous male, dorsal view; G, S. hainanensis, apterous female, dorsal view; H, same, lateral view; I, Tenagogonus kuiterti, apterous male, dorsal view; J–K. Gerris lobatus, brachypterous male: J, abdominal tip, lateral view; K, habitus, dorsal view; L, Rheumatogonus vietnamensis, apterous male, dorsal view; M, same, apterous female, dorsal view.

FIGURES 4A–C. A, Map of India showing location of state of Meghalaya; B, Distribution in Meghalaya of Ranatra libera in blue squares; Hydrometra jaczewskii in green triangles; H. longicapitis in red square; Gerris lobatus in pink circle; Rheumatogonus vietnamensis in black circle; C, Distribution in Meghalaya of Strongylovelia balteiformis in red circles; S. hainanensis in pink square; Tenagogonus aruli sp. nov. in green squares; T. kuiterti in blue circles.