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[文献書誌] Kunio Araya et al.: "Taxonomic review of the genus Aesalus (Coleoptera: Lucanidae) in the Himalayas." European J.Entomol.95. 407-416 (1998)
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[文献書誌] Yutaka Johki et al.: "Further notes on the microhabitat of Taeniocerus Pygmaeus (Coleoptera,Passalidae)." Elytra. 26(1). 141-143 (1998)
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[文献書誌] Kunio Araya et al.: "Discovery of the new genus allied to the genus Lucanus (Coleoptera,Lucanidae) from the high mountain in north Myanmar." Elytra. 26(2). 333-339 (1998)
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[文献書誌] Kunio Araya et al.: "Eurytrachellelus coussmenti Maes,1982,a new synonym of Dorcus Kyanrauensis (Miwa),1934 (Coleoptera,Lucanidae)." Jpn.J.Syst.Ent.4(2). 297-300 (1998)
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[文献書誌] Masahiro Kon et al.: "Necrophagous scarab beetles (Coleoptera,Scarabaeidae,Onthophagus) attracted to a diplopod copulating pair (Diplopoda) in Thailand." Elytra. 26(2). 347-349 (1998)
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[文献書誌] Masahiro Kon et al.: "Passalid beetles (Coleoptera,Passalidae) collected from Thailand,with new records of Ophrygonius cantori (Peracheron) and Aceraius laevicollis (Illiger)" Elytra. 26(2). 350-352 (1998)