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 Megarhyssa babaulti Seyrig, 1937 Figs 72-75 Material examined. Type material : DEMOCRATIC REPUBLIC OF CONGO: • 1 ♀, holotype; "reg. Lac Kivu", "Kadjudju" [Kajuju, 02°09'S , 28°54'E ]; 1932; MNHN EY8831. 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 presence of a closed areolet. No other species has the same colour pattern. Head : frons with median carinae diverging towards ocelli, without lateral carinae; hypostomal carina raised into an elevated flange, its height slightly 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 laterally absent. Metasoma : tip of apical horn almost circular in posterior view; tergite 3 mostly smooth. Distribution. Democratic Republic of Congo. Figures 72-75. Megarhyssa babaulti female (holotype). This species was not found in Uganda. 72 Habitus 73 mesopleuron dorsal margin 74 hypostomal flange 75 apical horn of metasoma. Figure 72 is from van Noort (2019) , 73-75 courtesy of MNHN ( Agniele Touret-Alby).