Diplonychus, Laporte, 1833

Polhemus, Dan A. & Polhemus, John T., 2013, Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae, Raffles Bulletin of Zoology 61 (1), pp. 25-45 : 27

Genus DIPLONYCHUS Laporte, 1833

Diagnosis. — Relatively small belostomatids, body length less than 20 mm. Body ovate, dorsoventrally flattened ( Fig. 2 ). Head produced ahead of eyes, apex sub-triangular; eyes with inner margins convergent; head width less than twice the maximum interocular width. Fore tarsi bearing two claws; middle and hind tibiae not flattened.

Discussion. — This genus contains relatively small, ovate, brown belostomatids that are often extremely common along the margins of ponds and other standing water habitats. A confusingly large number of generic and specific names have been applied to the species currently held in Diplonychus . For the one species occurring in the region under study, Diplonychus rusticus , the relevant nomenclatural synonymy is provided below.

Figures

Fig. 2. Diplonychus rusticus (Fabricius), male, specimen from Philippines, Luzon.