Figs 157–168 in A revision of the Maechidiini Burmeister, 1855 (Coleoptera: Scarabaeidae: Melolonthinae) from the Indo-Australian transition zone, and the first record of the tribe west of Wallace's Line

Figs 157–168. Papuan and Wallacean Maechidius Macleay, 1819, head, dorsal (157–159, 161–167) and frontal (160, 168) views. 157. M. parallelicollis Moser, 1920, lectotype, ♂ (ZMHB). 158. M. paupianus Heller, 1910, lectotype, ♀ (SNSD). 159. Same, ♂ (paratype of M. arrowi Frey, 1969) (BMNH). 160. M. pauxillus Heller, 1910 comb. rest., lectotype, ♂ (SNSD). 161. Same, ♀ (SNSD). 162. M. peregrinus Lansberge, 1886, ♂ (DTC). 163. M. pedarioides Arrow, 1941, syntype, ♀ (BMNH). 164. Same, syntype, ♂ (BMNH). 165. M. riedeli sp. nov., holotype, ♂ (SMNS). 166. M. perlatus (Frey, 1969) comb. nov., holotype, ♂ (NHMB). 167. Same, ♀ (NHMB). 168. M. simplex Frey, 1969, holotype, ♂ (photograph courtesy BPBM) (BPBM). Not to scale.