Based on recent field sampling in the highlands of western Sabah, a new species of Depressacca Ingrisch, 1998 (Conocephalinae: Agraeciini) is described from Tenompok, Depressacca macrolima sp. nov., that can be easily distinguish from two other known congeners by the presence of numerous large and falcate spines on the legs numerous large and falcate spines on its legs. Based on the new material, we also document here the live images and/or new locality records for other katydids of the tribes Agraeciini and Meconematini: Bispinolakis longicauda Ingrisch, 1998, Palaeoagraecia philippina (Karny, 1926) and Salomona borneensis Willemse, 1959; Alloteratura (Meconemopsis) longa Gorochov, 2008, Borneratura kinabaluana (Bey-Bienko, 1971) and Rhinoteratura pulchra Gorochov, 2008.