Ranatra varipes, Stal, 1861

Tran, A. D. & Zettel, H., 2021, Taxonomic review of the Ranatra gracilis group sensu Lansbury, 1972 (Nepomorpha: Nepidae), with descriptions of four new species, Raffles Bulletin of Zoology 69, pp. 45-70 : 47-48

Ranatra varipes group sensu Lansbury, 1972

Diagnosis. Body length: males 20–32, females 20–34; siphon relatively short, ratio of siphon length: body length around 0.6–0.8; vertex in lateral view higher than eye, evenly round, without tubercle; ratio of anterior pronotal length: posterior pronotal length 1.1–1.4; fore femur relatively broad, flexor side with two teeth, a larger tooth at the middle and a smaller tooth at distal 0.4, pre-apical teeth absent; metasternum with posterior margin convex; operculum of female at most reaching apex of connexivum; male paramere without pre-apical process before hook, apical hook either long and slender ( R. unicolor , R. falloui ) or short and truncate ( R. varipes ).

Species included. Ranatra varipes Stål, 1861 , R. unicolor Scott, 1874 , and R. falloui Montandon, 1907 .

Note. For comparison between species and also key to species of this group, see Lansbury (1972).