New species and new records of ichneumon wasps, with descriptions of two new species of Melalophacharops Uchida, 1928 (Hymenoptera: Ichneumonidae)

Palaearctic, Oriental, Australasian, Afrotropical and Neotropical species of the subfamilies Campopleginae, Hybrizontinae, Mesochorinae and Ophioninae of Ichneumonidae (Hymenoptera) are treated. Two new species of Campopleginae are described, Melalophacharops nitens sp. nov. from Taiwan, and Melalophacharops chryseus sp. nov. from Australia, the latter representing the first described species of the genus from the Australasian region. The following new country records are presented: Campopleginae: Melalophacharops everese (Uchida, 1957) from Taiwan, Microcharops tibialis (Cresson, 1872) from Paraguay, Lemophagus curtus Townes, 1965 from Hungary, Phobocampe confusa (Thomson, 1887) from North Macedonia, Rhimphoctona megacephalus (Gravenhorst, 1829) from Lebanon; Hybrizontinae: Ghilaromma fuliginosi (Wilkinson, 1930) from Hungary; Mesochorinae: Mesochorus laricis Hartig, 1838 from Hungary; Ophioninae: Dicamptus pellucidus (Kriechbaumer, 1894) from Kenya, Dictyonotus nigrocyaneus (Tosquinet, 1903) from Eritrea, Enicospilus cederbergi Johansson, 2018 from Hungary, Enicospilus exoticus (Morley, 1912) from French Guiana, Enicospilus leucocotis (Tosquinet, 1896) from Tanzania, Enicospilus quietus (Seyrig, 1935) from Tanzania, Ophion areolaris Brauns, 1889 from Hungary, Thyreodon atriventris (Cresson, 1874) from French Guiana and Nicaragua, and Thyreodon maculipennis Cresson, 1874 from Nicaragua.