The Ceratocanthinae of Ulu Gombak: high species richness at a single site, with descriptions of three new species and an annotated checklist of the Ceratocanthinae of Western Malaysia and Singapore (Coleoptera, Scarabaeoidea, Hybosoridae) Author Alberto Ballerio Author Munetoshi Maruyama text Zookeys 2010 34 77 104 journal article http://dx.doi.org/10.3897/zookeys.34.268 553C91CE-FEA1-4867-929B-2865647E4B2E Pterorthochaetes gestroi longisetosus Gestro, 1899 Known distribution: Singapore (Gestro 1899). Remarks. Pterorthochaetes gestroi gestroi and. P. gestroi longisetosus shows differences strong enough to warrant their separation at specific level.