FIGURES 21–32 in Notes on the morphology, taxonomy, and natural history of the genus Platycerus Geoffroy from China, with the description of a new species (Coleoptera: Scarabaeoidea: Lucanidae)

FIGURES 21–32. Mandibles of Platycerus in dorsal view. 21, 22, 23—Platycerus yingqii, males; 24, 25— Platycerus rugosus, males; 26—Platycerus kitawakii, male; 27, 28—Platycerus yingqii, females; 29—Platycerus hongwonpyoi mongolicus, male; 30—Platycerus rugosus, female; 31—Platycerus kitawakii, female; 32—Platycerus hongwonpyoi mongolicus, female. Abbreviations: a, apex; i, incisor teeth; m, mola; ga, gap between apex and incisor teeth; gm, gap between molae and incisor teeth; l, length of conjoined inner margin of incisor teeth; ca, concaved area on dorsal surface of mandible.