FIGURES 17–20 in Four-horned wasps, description of some remarkable Dirhinus (Hymenoptera, Chalcididae) from Kenya, with a discussion of their taxonomic placement

FIGURES 17–20. Characters of Dirhininae: terminology (end). 17. D. aff. hesperidum, ♀. Petiole and GT1 in dorsal view. 18, 19. Petiole respectively in posterodorsal and dorsal views. 18. D. quadrhinus, holotype ♀. 19. D. anthracia, ♀. 20. D. anthracia, ♀. Hypopygium. Abbreviations. pet-am, anterior margin; pet-ans, setae at anterior margin; pet-msu, median sulcus; pet-smc, submedian carinae; GT1-cr1, primary crest; GT1-lcr, lateral crest; hyp, hypopygium; hyp-aps, apical setae.