Figures 20-23 from: Wang WY, Yamada A, Eguchi K (2019) Discovery of a new ant species of the elusive termitophilous genus Metapone in Singapore (Hymenoptera, Formicidae, Myrmicinae), with the first detailed description of male genitalia of the genus. ZooKeys 876: 125-141. https://doi.org/10.3897/zookeys.876.35739

Figures 20-23 Male genitalia of Metapone murphyi, paratype male (ZRC_HYM_0000016.11) 20 Pygostyle in dorsal view 21 abdominal sternite IX in ventral view 22 paramere and volsella, right side, inner view 23 penisvalva, right side, in outer view. Abbreviations: Bm basimere; BmC carina of lower basimere; Cs cuspis; Dg digitus; Ga gonostipital arm; Lp lateral apodeme of penisvalva; Sp spiculum; Tm telomere; Va valvura; Vo volsella.