Extensive sampling and thorough taxonomic assessment of Afrotropical Rhyssinae (Hymenoptera, Ichneumonidae) reveals two new species and demonstrates the limitations of previous sampling efforts Author Hopkins, Tapani Author Roininen, Heikki Author Noort, Simon van Author Broad, Gavin R. Author Kaunisto, Kari Author Saeaeksjaervi, Ilari E. text ZooKeys 2019 878 33 71 http://dx.doi.org/10.3897/zookeys.878.37845 journal article http://dx.doi.org/10.3897/zookeys.878.37845 1313-2970-878-33 BCE3960BE7C6418FB8802978DF9F099E C0F938DD0EFE5A18BB267539EC83EFDB Epirhyssa brianfisheri Rousse & van Noort, 2014 Figs 3-6 Material examined. Type material : CENTRAL AFRICAN REPUBLIC: • 1 ♀, holotype; Préfecture Sangha-Mbaéré, Réserve Spéciale de Forêt Dense de Dzanga-Sangha (12.7 km, 326 degrees NW of Bayanga); 3°00.27'N , 16°11.55'E ; alt. 420 m; 13 May 2001; Simon van Noort leg.; Sweep; CAR01-S158; Lowland rainforest; SAMC SAM-HYM-P 048018. Known material : One specimen (1 ♀, see Rousse and van Noort 2014 , data above). Diagnosis. This species can be distinguished from other Afrotropical Rhyssinae by the combination of an elevated hypostomal flange, the absence of a raised flange on the dorsal margin of the mesopleuron, an elliptical apical horn of the metasoma, and a finely punctate (over 50% of surface) tergite 3. In practice its colour pattern makes it instantly recognisable. Head : frons with median carinae converging before continuing towards median ocellus, without lateral carinae; hypostomal carina raised into an elevated flange, its height greater than the maximum width of the second maxillary palp segment. Mesosoma : subalar prominence without a lateral flange; mesopleuron without a flange along the dorsal margin; epicnemial carina reaches the approximate height of the mesopleural pit. Metasoma : tip of apical horn elliptical in posterior view; tergite 3 punctate. Distribution. Central African Republic. Figures 3-6. Epirhyssa brianfisheri female (holotype, SAM-HYM-P 048018). This species was not found in Uganda. 3 Habitus 4 hypostomal flange 5 mesopleuron dorsal margin 6 apical horn of metasoma. Figure 3 is from van Noort (2019) .