Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. Xi. Infraorder Nepomorpha- Families Naucoridae And Aphelocheiridae Author Polhemus, Dan A. Author Polhemus, John T. text Raffles Bulletin of Zoology 2013 2013-08-30 61 2 665 686 journal article 10.5281/zenodo.5352700 2345-7600 5352700 Aphelocheirus ( Micraphelocheirus ) malayensis Zettel & Papáček, 2006 ( Figs. 58, 59 ) Aphelocheirus ( Micraphelocheirus ) malayensis Zettel & Papáček, 2006: 104 Diagnosis . — Macropterous forms with length 4.02–4.36 mm , maximum width (across abdomen) 1.97–2.23 mm . Brachypterous forms unknown. Colouration with head and pronotum dark brown, hemelytra pale brown with clavus yellowish, ventral surface medium to dark brown with rostrum and legs other than coxae light yellow. Male parameres as in Figs. 58, 59 . Distribution . — Described from “Ipoh, 5 km from Tanjong Rambutan” in Peninsular Malaysia (Zettel & Papáček 2006), and so far not recorded elsewhere. We have not examined the type series of this species, and no subsequent collections of this species have been reported from either Singapore or peninsular Malaysia . Discussion . — Easily recognised among the currently known suite of Peninsular Malaysian Aphelocheirus by its small size and male genitalic structures ( Figs. 58, 59 ). For additional discussion of salient morphological characters see Zettel & Papáček (2006).