An updated checklist of Dryinidae, Embolemidae and Sclerogibbidae (Hymenoptera) of Kenya and Burundi, with descriptions of thirteen new species Author Olmi, Massimo Tropical Entomology Research Center, Viterbo, Via De Gasperi 10, 01100 Italy; e-mail: olmi @ unitus. it & Corresponding author Author Copeland, Robert S. International Centre of Insect Physiology and Ecology (ICIPE), P. O. Box 30772, Nairobi 00100, Kenya and National Museums of Kenya, Division of Invertebrate Zoology, P. O. Box 40658 Nairobi 00100, Kenya, e-mail: rcopeland @ icipe. org, hunteriazeylanica @ yahoo. com Author Guglielmino, Adalgisa Department of Agriculture, Forests, Nature and Energy, University of Tuscia, Via San Camillo de Lellis, Viterbo, 01100 Italy; e-mail: guglielm @ unitus. it Author Icipe text Acta Entomologica Musei Nationalis Pragae 2015 2015-06-01 55 1 333 380 journal article 10.5281/zenodo.5304733 0374-1036 5304733 D751AC5C-5C26-4A5D-8A6C-0FF088E518ED 4. Aphelopus severancei sp. nov. * ( Figs 1A ) Type material. HOLOTYPE : J, KENYA : COAST: Taita Hills , Vuria Forest , 3.41428°S 38.29178°E , 2162 m , 12–26. vi.2011 , Malaise trap just inside indigenous forest, R. Copeland leg. ( NMKE ). Diagnosis. Male with head and scutum almost completely black, notauli reaching about 0.5 length of scutum, basivolsella with lateral medial process and not fused with paramere. Description. Male . Fully winged; length 2.4 mm . Head black, except mandible testaceous; antenna brown; mesosoma black; metasoma brown; legs brown. Antenna filiform; antennal segments in following proportions: 6: 5: 6.5: 6.5: 7: 8: 7: 7: 7: 9. Head dull, granulated; frontal line only shortly present near clypeus; occipital carina complete; POL = 7; OL = 4; OOL = 4; OPL = 4; TL = 4; greatest breadth of posterior ocelli shorter than OPL (2: 4). Scutum, scutellum and metanotum dull, granulated. Notauli incomplete, reaching about 0.5 length of scutum. Propodeum reticulate rugose. Forewing hyaline, without dark transverse bands; stigmal vein regularly curved. Basivolsella ( Fig. 1A ) with lateral medial process and two subdistal bristles. Tibial spurs 1/1/2. Female . Unknown. Differential diagnosis. Based on the characters summarized in the above diagnosis, in the Afrotropical Region the new species is similar to Aphelopus vernonensis Olmi, 2009 (see keys of OLMI 1984 , 2009 ). The main difference regards the position of the lateral process of the basivolsella (medial in A. severancei ( Fig. 1A ), distal in A. vernonensis ( Fig. 1B )). The shape of the basivolsella is the most important character used for differentiating males of Aphelopus ( OLMI 1994a , 1999a ; XU et al. 2013 ; OLMI & VIRLA 2014 ). Etymology. This species is named after my (RSC) college mate and rediscovered friend David Severance. Hosts. Unknown. Distribution. Only known in the type locality.