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 Ballerio, Alberto , Brescia, Italy Author Maruyama, Munetoshi The Kyushu University Museum, Fukuoka, Japan text ZooKeys 2010 2010-01-28 34 34 77 104 journal article 10.3897/zookeys.34.268 7a68e13d-3c05-49d5-86a3-7bdb5c4af1ce 1313–2970 576606 553C91CE-FEA1-4867-929B-2865647E4B2E Madrasostes depressum Paulian, 1992 ( Fig. 2A ) Known distribution: Indonesia ( Sumatra ) ( Paulian, 1992 ). Remarks. First record for West Malaysia ( Selangor ). This species has two distinctive paired thick sclerites in the internal sac of aedeagus. The shape of these sclerites in the Ulu Gombak material is slightly different from the shape of the sclerites of the holotype , however, due also to the circumstance that the Sumatran population is known by the type only, we were unable to find further differences that could allow a taxonomic separation of the Sumatran populations from Peninsular Malaysian specimens.