Abstract
The following five new species of Laboulbenia are described: L. angkorensis, parasitic on Pseudolathra armigera (Coleoptera, Staphylinidae); L. fusca, parasitic on Planetes formosanus (Coleoptera, Carabidae); L. polyandra, parasitic on Macrocheilus sp. (Carabidae); L. scabra, parasitic on Abacetus sp. (Carabidae), and L. trilobata, parasitic on Dioryche indochinensis (Carabidae). Nineteen species of Laboulbenia are reported for the first time from Cambodia and the taxonomic position of L. asiatica is discussed. New records from Angola, China, Greece, Israel, Kenya, Philippines, Romania, Sierra Leone, Zimbabwe are also reported.