We are Japanese Entomological society specialized in Scarabaeoid beetles (Coleoptera, Scarabaeoidea).

Contents:

●Observation of copulatory behavior and genitalia in three Japanese rhizotrogine chafers (Coleoptera, Scarabaeidae) (In Japanese)
Takeshi Matsumoto --- 1

●Taxonomic notes on the Holotrichia kiotonensis group (Scarabaeidae, Melolonthinae, Melolonthini) (In Japanese)
Takeshi Matsumoto --- 9

●Notes on some Scarabaeidae from a reclaimed island of Ishigaki City, Okinawa Prefecture (In Japanese)
Yoshihisa Kusui --- 15

●Notes on some species of the genus Apogonia from Japan (Coleoptera, Scarabaeidae, Melolonthinae) (In Japanese)
Hirokazu Kobayashi --- 21

●Some new species of the genus Apogonia (Coleoptera, Scarabaeidae, Melolonthinae) from Southeast Asia, IV
Hirokazu Kobayashi --- 27

●Revisional notes of the genus Apogonia from Laos (Coleoptera, Scarabaeidae, Melolonthinae)
Hirokazu Kobayashi --- 41

●Four new species of the genus Maladera (Coleoptera, Scarabaeidae) from Southwest Japan
Hirokazu Kobayashi --- 67

●A new genus and species of Trogidae MacLeay, 1819 from Madagascar, and a new species of Omorgus Erichson, 1847 from Argentina (Coleoptera, Trogidae)
Riccardo Pittino --- 75

●Redescription of Omorgus marshalli (Haaf, 1957) (Coleoptera, Trogidae) from Australia
Riccardo Pittino & Shinya Kawai --- 85

●Notes on Caccobius suzukii Matsumura, 1936, a junior synonym of Caccobius (Caccophilus) boucomonti Balthasar, 1935 (Coleoptera, Scarabaeidae)
Shinya Kawai --- 89

●The ceratocanthid beetle, Pterorthochaetes haroldi (Coleoptera, Ceratocanthidae), collected from a gallery of the passalid beetle, Leptaulax planus (Coleoptera, Passalidae), in Sabah, Malaysia
Masahiro Kon, Yutaka Johki & Alberto Ballerio --- 93

●A new species of Bolbochromus from the Philippines (Coleoptera, Scarabaeidae)
Teruo Ochi, Masahiro Kon & Masakazu Kawahara --- 97

●Four new species of the genera Odontotrypes and Phelotrupes (Coleoptera, Geotrupidae) from Kachin, Myanmar
Teruo Ochi, Masahiro Kon & Masakazu Kawahara --- 101

●Four new species of the genus Gilletianus from Southeast Asia (Coleoptera, Scarabaeidae)
Teruo Ochi, Masahiro Kon & Masakazu Kawahara --- 111

●A new species of Onthophagus (Parascatonomus) from Sangihe Is., Indonesia (Coleoptera, Scarabaeidae)
Teruo Ochi, Masahiro Kon & Masakazu Kawahara --- 121

●Two new species of Onthophagus (Parascatonomus) from Java (Coleoptera, Scarabaeidae)
Teruo Ochi, Masahiro Kon & Sri Hartini --- 125