Elytra,Tokyo,35(1):305-306,May30,2007 NewRecordsof Two Little-knownSpeciesof theSubtribe Bibloporina, TribeTrichonychini (Coleoptera,Staphylinidae, Pselaphinae) fromHokkaidoandShikoku,Japan Shuhei NoMURA DepartmentofZoology,NationalScienceMuseum(Nat.Hist), 3-23-1Hyakunin-cho,Shinjuku,Tokyo, 169-0073Japan Up to thepresent,eightspeciesof fourgeneraof thesubtribeBib1oporina in the tribe TrichonychinisensuCHANDLER(2000)havebeenknownfromJapan.Inthecourseofmystudy, Kuriporuscreator KURBATovonlyknownfromKunashiri IslandoftheChishimaIslandswas discovered from Shikoku, whichisthefirst record of thisspeciesfromthemainlandofJapan. Additionally,Bib1oporusponderosus KuRBATov known from Kunashiri IslandandHonshu is recordedalsofromHokkaidointhepresent report. Beforegoingfurther,IwishtoexpressmyheartythankstoMr.ShigehisaHoRI(Hokkaido Prof.)andDr.MasahiroSAKAI(EhimeUniv)fortheirkindofferoftheinvaluablematerials.I amalsoindebtedtoDr.Serguei A. KURBATov forgivingmesomereferencespecimensand invaluableinformation. Kurlporuscreator KuRBATov, 1991 [Japanesename:Keshitsubu-kikawa-arizukamushi] (Fig.1) Kuri'poruscreatorKURBATov,1991,Zoo1.Zh.,Moskva,70(10):71. Speclmensexammed. 1male,1female,Nagano(inlitter),Yusuhara, KochiPref.,15-VII- i994, M.SAKAI leg. Distribution. ChishimaIsis. (Kunashiri Is),Shikoku. Remarks. Thisspeciesistheonlymemberofthegenus.It ischaracterizedbyverysmall body(0.75-0.80mminlength)andthelargeandtransversepronotumwiththreelongitudinal sulci. Bib1oporusponderosusKURBATOv, 1991 [Japanesename:Chishima-kikawa-arizukamushi] (Fig2) Bib1oporusponderosusKURBATov,1991,Zoo1.Zh.,Moskva,70(7):58. - NOMURA,2005,Elytra,Tokyo 33: 224. 306 Shuhei NoMURA 、カ 0.5mm 0.5mm Figs.1-2.Kuriporuscreator KURBATov,malefromShikoku(1); Bib1oporusponderosusKURBATov, malefromHokkaido(2). Specimensexamined. 1female,NopporoForestPark(FIT),MC:6441-44-60,Ebetsu-shi, Hokkaido,17~24-V-2000,ShigehisaHoRI leg; 1male,samedataasabove,buf f3~21-VI- 2000;1male,samelocalityasabove(HMH/FIT),27-VI-2001,S. HoRIleg. Distribution. ChishimaIsis.(KunashiriIs),Hokkaido,Honshu. Remarks. ThisspecieswasreportedbyNoMuRA(2005)alsofromYamanashiPrefecture, Central Honshu. References CHANDLER,D.S.,2000. Biology,morphology,andsystematicsof theant-likelitter beetlesof Australia (Coleoptera:Staphylinidae:Pselaphinae).Mom. Ent., Int.,15,560pp.AssociatedPublishers,Florida. KuRBATOv,S.A.,1991a.BeetlesofthetribeEuplectini(Coleoptera,Pselaphidae)fromtheSovietFarEast. Communication1.Zoo1. Zh.,Moskva,70(6):88-97.(InRussian,withEnglishsummary) - 1991b.BeetlesoftribeEuplectini (Coleoptera,Pselaphidae)fromtheKunashirIsland.Ibid.,70 (10):69-77. (InRussian,withEnglishsummary) NOMURA, S., 2005. The first record of Bib1oporus ponderosus KURBATov (Coleoptera, Staphylinidae, Pselaphinae) fromHonshu,Japan.Elytra, Tokyo,33:224.