Aphelocheirus, Westwood, 1833

Polhemus, Dan A. & Polhemus, John T., 2013, Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. Xi. Infraorder Nepomorpha- Families Naucoridae And Aphelocheiridae, Raffles Bulletin of Zoology 61 (2), pp. 665-686 : 680

Genus APHELOCHEIRUS Westwood, 1833

Discussion. — Members of the Aphelocheiridae are similar to Naucoridae in regard to their dorsoventally flattened bodies, lack of forewing venation, enlarged fore femora, anteriorly-directed male genitalia, and benthic ecology. As a result, they have been treated as a subfamily of Naucoridae by many previous authors (D. Polhemus & J. Polhemus, 1989 and references therein). Distinguishing characters for Aphelocheiridae include the antennae, which although 4-segmented as in Naucoridae are more slender and elongate, projecting well beyond the eyes when viewed from above; the labium, which is long, usually extending