Scarabaeinae (Coleoptera: Scarabaeidae) from Hong Kong Author Cheung, Kahong Agriculture, Fisheries and Conservation Department, Hong Kong SAR Government, Hong Kong SAR, China Author Bai, Ming Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China These authors contributed equally to this work Corresponding author, E-mail: baim @ ioz. ac. cn Author Leung, Manhin Agriculture, Fisheries and Conservation Department, Hong Kong SAR Government, Hong Kong SAR, China Author Lee, Yingming Agriculture, Fisheries and Conservation Department, Hong Kong SAR Government, Hong Kong SAR, China Author Chan, Kinfung Agriculture, Fisheries and Conservation Department, Hong Kong SAR Government, Hong Kong SAR, China Author Yang, Xingke Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China These authors contributed equally to this work Corresponding author, E-mail: baim @ ioz. ac. cn text Zoological Systematics 2018 43 3 233 267 journal article 10.11865/zs.201830 2095-6827 4617705 Tribe Onthophagini Burmeister, 1846 Onthophagini Burmeister, 1846 , Genera Quaedam Insectorum :? [unnumbered pages] (Orignal spelling as Onthophagidae, type genus: Onthophagus Latreille, 1802 ). Alloscelini Janssens, 1946 , Mém. Mus. R. Hist. Nat. Belg. : 10 (Orignal spelling as Alloscelides, type genus: Alloscelus Boucomont, 1923 ). Key to genera of Onthophagini from Hong Kong . 1 Front margin of protibia straight and perpendicular to the inner margin; pronotum with marginate antennae concave......................... .................................................................................................................................................................. Caccobius Thomson, 1863 The above characteristics not present or not present at the same time ................................................... Onthophagus Latreille, 1802