Rhagovelia orientalis, Lundblad, 1937

Zettel, Herbert & Laciny, Alice, 2021, New species of the Rhagovelia orientalis species group (Hemiptera: Heteroptera Veliidae), Zootaxa 4942 (2), pp. 219-228 : 220

Rhagovelia orientalis group

Diagnosis (modified from Polhemus & Polhemus 1988, Nieser et al. 1997): Medium-sized species (body length 2.6–3.7 mm). Head, thorax, and abdomen in most species (in all Philippine species) black, except a transverse, orange or yellowish stripe anteriorly on pronotum and yellow acetabula. Legs often with a metallic blue or greenish shimmer. Pronotum of apterous morph long, covering mesonotum. Forewing with three or four closed cells extending to distal third. Paired abdominal carinae of macropterous morph rarely exceeding posterior margin of abdominal mediotergite 2. In dealate specimens, wings broken at base.—Male: Metafemur moderately to very slender, only with the posterior distal row of teeth present. Sterna often modified, with or without median carina. Proctiger with broad lateral lobes. Parameres curved dorsally.—Female: Metafemur very slender. Abdomen very variable, from simple and broad to acuminate and very slender; many species with modifications like a process on mediotergite 7 or tufts of hairs on connexival corners or on mediotergites 7–8.