Elytra,Tokyo,35(1):21-26,May30,2007 Occurrenceof aNewCaveSpeciesofJujiroa (Coleoptera, Carabidae, Platyninae) fromCentralSichuan,Southwest China Shun-lobi UENo DepartmentofZoology,NationalScienceMuseum(Nat.Hist) 3-23-1Hyakunin-cho,Shinjuku,Tokyo,169-0073Japan Abstract Anewcavespeciesof theplatyninegenusJuJiroaisdescribedfroma conglomeratecaveincentralSichuan,SouthwestChina,andisnamedJuJiroasato1to thememoryofthelateDr.MasatakaSAT0. Itisapeculiarspecies,isolatedfromthe othercongenersby lackingdorsalandpreapica1poreson theelytra andmodified protarsomeresinthemale. TheplatyninegenusJujiroahas ratherawiderangeof distribution inEast Asia. MorethanthirtyspeciesofthegenushavehithertobeenknownfromCentralandWest Japan (cf.SAsAKAwA, 2006), Taiwan (U直NO&SAIT0, l991),MainlandChinaand NorthVietnam(cf.DEUvE,2004). InMainlandChina,thesesubterraneanplatynines areextremelyrareandtheiroccurrenceisquitesporadica1, all thefourspecieshitherto describedhavingbeen known fromonlysinglespecimens(JEDLIOKA, l961,pp.177, 218-219,fig44;VIGNATAGLIANTI,1995,p.180,figs.1-3;U直NO&KISHIMOT0,2001, 31, figs. l-3; DEuvE,2004,p 362, fig. 1). Thougha fewadditionalspecieswere p discoveredinSichuaninthepastthreeyears,theyremainundescribeduntilnowdueto inadequacyof availablespecimens. In themiddleautumnof2006, I hadanopportunitytovisit apeculiar limestone cave located in central Sichuan. This cave, called Longmen Dong, is a long one developedinconglomeratelyingnearthetopofalowhill,andhaslongbeenwellknown tolocalpeopleasashowcavethoughneverexaminedbycavebiologists. Itisrelatively dryfor themostpart,buttherearewetplacesfedbytrickles. Ataturningpointofthe touristroute,thereisapavedreststationwithchairsanddustbins,thelatterofwhich contained leftoversof lunches, confectioneriesand juicebottles, formingappropriate attractor forsubterraneananimals. All thecavernicolesof interest,includingJujiroa, Quedius,eyelesslithobiidcentipede,andsoon,werefoundinoraroundthosedustbins. ThreespecimensofJziJlroawerefound fromunder them. Afteracloseexamination, itbecameapparent that theplatyninewasconsiderably different fromothercongeners,thoughlookingsimilar ingeneralappearancetotypical Chineseforms. Itbelongstoanisolatednewspeciesbeyondalldoubt,andisdescribed inthepresentpapertothememoryofthelateDr.MasatakaSAT0(1937-2006). Having beenaleadingcoleoptero1ogistspecializinginaquaticbeetles,SAT0hadawideinterest 22 Shun-lobi UtNo in various insects including those living in caves, and served as a council of the Speleological SocietyofJapan for alongtime. He was averygoodpartner inmy biologicalinvestigationsofChinesecaves.TogetherweexploredmanycavesinSichuan, Shaanxi, Hubei, Guizhou and Guangxi, always looking for cavebeetles and often achievinggoodresults. Besidestrechinebeetles,wediscoveredJuJlroainSichuan,which remain undescribed until nowsincewehavebeen unable to obtainsufficient material. Insteadofdedicatingthosespecies,I wouldliketonameafterhimanother remarkable speciesonthebasisofpluralspecimens, forthefirst timeforChineseJujiroa. Theabbreviationsusedhereinarethesameasthoseexplainedinpreviouspapersof mine. I wishtoexpressmyheartythankstomyfriend,Mr.FANTingoftheAcademia Sinica, forhiselaboratearrangement forinvestigatingLongmenDongCave.Mr.FAN isalsoa friendofSAT0's. JuJ'iroasatoiS.UtNo,sp nov (Figs.1-3) Length: 11.9-13.4mm(fromapicalmarginofclypeustoapicesofelytra). NotunlikeJclarkeiDEuvE(2004,p 362, fig.1) ingeneralappearance,but the eyes aremoreatrophied, the pronotum bearsmorewidely re?exed latera1parts, in Particularnear front angles,and theelytraaremorepointedanddenticulateat the apicesanddevoidofbothdorsalandpreapica1setae. Besides, themaleprotarsomeres arenotdistinctlymodified, thoughbearingoneor twovestigesofatrophiedadhesjve appendages. Concolorouslydarkreddishbrown,shinyexcept forelytra,whicharesubopaque. Bodyelongate,withnarrowheadandmoderatelyslender appendages;apterous;mi_ crosculptureveryfineandmoreor lessdegeneratedonheadandpronotum,mostly consistingof transverselines,moreapparent onelytrathoughalsoconsistingof fine transverse lines. Headnarrow,obviouslylongerthanwide,HL/HW128-1.35(M I32),widesta littlebeforethemiddle,andgraduallynarrowedposteriadtowardsneckconstriction, whichisnotsharplymarked;neckshortandnearlyparallel-sided;genaefeeblyconvex, eyes completely at and not faceted; dorsum moderately convex, with two pair of supraorbitalsetaelyingonsubpara11e11ines; frontal impressionsdistinct;labrumtrans- verse,with theapical margin veryslightly bisinuate;mandibles fairly long,sharply arcuateinwardsattheapicalparts;mentumbifoveolatealonglabialsutureandbisetose, withbroadmental toothevidentlybifidat thetip;palpi1ongandslender,penultimate segmentsgraduallydilatedtowardsapices,alittlelonger thanapicalsegmentinlabja1 palpus,aboutaslongasapicalsegment inmaxillarypalpus;antennaeslender,reaching apical fourthofelytrain ,apical thirdofelytrain早,scapelong,thickestofallthe antennomeres,pedicel theshortest, two-fifthsaslongasscapeorantennomere4and one-thirdaslongasantennomere3,antennomeres5-10graduallydecreasinginlength NewCavernico1ousJujiroafromCentralSichuan 23 Fjg. 1. JuJlroasatoiS. UtNo,sp nov., , from Longmen Dong Cave in Lushan Xian,Cent「al Sichuan towardsterminalantennomere,which isaboutas longasteandabout two-thirdsas longas3, antennomeres3-5eachaboutsixtimesaslongaswide. Pronotumalittleshorterthanheadinmid-line,subquadratewithlargeprotruding frontangles,widestatabout two-thirdsfrombase,andstraightlybutgentlynarrowed posteriad;PL/HL1.05-1.08(MI.06),PW/HW1.43-1.50(MI.46),PW/PL1.04-1.06 24 Shun-lobi UtNo 3 / ////一一1一// l 1.0 mm Figs 2-3. MalegenitaliaofJujiroasatoiS.U直NO,sp nov., fromLongmen DongCave jn Lushan Xian,centralSichuan;leftlateralview(2),andapicalpartofaedeagus,dorso-apicalview(3). (M 1.05),PW/PA t30-1.41 (M I35), PW/PB122-1.24 (M I23);sideswidely eXPlanateandsharplyre?exedthroughout, feeblyarcuatein frontandnearlystraight behindmiddle, re?exed lame11ar partscoarselypunctateespecially in anterior two_ thirds,remarkablywidenednearfrontangles,andalsonearhindanglesthoughlessso thanintheanteriorparts;apairofpostangularsetaepresentonhindangles,theanterior pairofmarginalsetaeabsent;apexalittlenarrowerthanbase,PA/PB0.87-0.96(M 0・91) [PB/PA1.05-1.15(M1.10)], nearlystraightat themedianpart,withlarge subtriangular front angleoneachside,whichis remarkablyproduced forwardsand somewhatbluntat thetip;basemostlystraight,veryslightlyobliqueoneachsideinside hindangle,whichissomewhatobtusethoughnearlyrectangular;dorsummoderately Convex,withsharplyimpressedmedianlinebetweenthetwotransverseimpressjons,of whichtheanterioronemergesintomarginalgutterateachlateralendandtheposterior onereachesitoneachside;basal foveaenotsharplydefined;basalareasmooth,basal marginnarrowlybordered. Elytraelongate, amygdaloid,muchwider thanprothorax,widestatabout four- ninths frombases,andmoreregularlynarrowedtowardsapicesthantowardsbases; EW/PW l66-1.73(MI71),EL/PL3.04-3.18(M3.12),EL/EWl74-1.75(M I74); shoulderseffaced,withprehumera1bordersobliqueandfeeblyarcuate;sidesmoderately borderedexcept forhumeralparts,wherethebordersbecomenarrower,veryslightly arcuatebeforemiddle,feeblysoinapicalhalves,anddevoidofpreapica1emargination; apicesmoderatelypointed,not truncated,eacheithersharporbrieflyspinousbutnot distinctlymucronate;dorsumgentlyconvexthoughwidelydepressedonthedisc,steeply declivousat thenarrowlateralparts;striaeentire,moderatelyimpressedanddistinctly Punctateon thedisc,butbecomingshallower at theside,striae3-4and5-6usually NewCavernico1ousJujlroafromCentralSichuan 25 anastomosingat theapicalends,stria7extendingtoelytra1apex,stria8deepenedin apicalhalf;scutellarstrictosharply impressed; intervalsmostly flatevenonthedisc; basalporereducedandnotsetiferous;dorsalandpreapica1poresobliteratedaltogether; threeor fourapicalporespresent,oneattheapexofinterval1andtheothersadjoining the apical part of stria 7; marginal umbilicateseries composed of about 21 pores inclusiveof threethatbear longerhairs. Ventralsurfacesmooth;visiblesternites3-5eachwithapairofparamediansetae; analsternitewithapairofmarginalsetaein ,withtwopairofthemin早. Legslong; protibiaestraight, graduallydilatedtowardsapices; tarsi fairlylong, tarsomeres1-4 longitudinallybisulcateondorsalsurface; tarsomere11onger thantarsomeres2and3 combinedinbothmeso-andmetatarsi;tarsomere4deeplybilobedinpro-andmesotarsi, deeplyemarginateattheapexinmetatarsus;clawsegmentdevoidofadditionalsetae;in , protarsomereshardlymodified, thoughbearingoneor two vestigesofatrophied adhesiveappendagesontheventralsurface. Malegenitalorgansmallandlightlysclerotized,moreelongatethaninJ deliciola S.UtNoet KIsHIMoTo (2001,p 31, figs.1-3), theonlyChinesespecieswhosemale genitaliaareknown,withlongerapicallobeandlargersagittalaileron. Aedeagusabout one-third as long as elytra, elongate, gently arcuate, and widely membraneous on dorsum,withtheleftaedeagalwallmuchmorereducedthantheright,aboveallbefore apical lobe; basalpart narrowandstraight,hardlycurvedventrad,withsmallbasal orificewhosesides areonlyslightlyemarginate;sagittal aileron fairly largethough narrow; apicallobelong,ventro-apica11yproduced, rapidlytaperedapicadtopointed extremity inlateral view,graduallynarrowedtowardsbluntextremity indorsalview; ventralmarginwidelybutshallowlyemarginateinprofile,alittlemoredeeplysoatthe base of apical lobe; inner sac inerm though wholly covered with minute, hardly sclerotizedscales. Leftparamereconchoidal,largebutnotsobroad,with theapical marginfeeblyarcuate;rightparamerenarrowandsmallerthantheleft,withbluntapex. Typeseries. Holotype: ,allotype:早,paratype:1 22-X-2006,S. UtN01eg. , Depositedin thecollectionoftheDepartmentofZoology,NationalScienceMuseum (Nat.Hist ), Tokyo. Type locality. Limestone(conglomerate) cavecalledLongmenDong, 960min altitude, at Longmen Cun of Longmen Zhen in Lushan Xian of central Sichuan, Southwest China. Notes. ThoughdescribedincomparisonwithJ.clarkei, trueaffinityof thisnew speciesdoesnotseemveryclosetoit inspiteof thesimilarityingeneralappearance. Lamellar frontanglesofthepronotumremarkablyprotrudent forwards,theabsenceof both the dorsal and preapica1 pores on the elytra, and the reduction of protarsa1 modificationinthemaleareuniqueforJ.satoi. Besides, thetypelocalityofJ.clarkei is the farthest of the three caves from which trog1obionticJujiroawerepreviously known,wellmorethan700kmdistant tothesoutheast fromthatofJ.satoi. Inciden- tally,thetypelocalityofJ deliciolaisalittlemorethan300kmdistanttothesoutheast, andthat ofJ. iolandaeisalittlemorethan370kmdistantto theeast bynorth. 26 Shun-lobi UtNo 要 約 上野俊一:中国四川省中央部の礫岩洞にすむホラアナヒラタゴミムシの1新種. - 中国四川 省芦山 尤、一]慎尤1、一]村に位置する尤、一l ]洞は, 礫岩のなかに発達した特異な洞窟だが, これまでに 生物学的な調査のなされたことがなかった. 2006年の秋にこの洞窟を調べたところ, ホラアナヒ ラタゴミムシの一種が発見されたが, 外見的にはほかの既知種に似ているにもかかわらず, 細部 には特異な点が多くて, 明瞭な新種であると認められた. この新種を, 四川省や貴州省の洞窟調 査になんども同行され, さらなる調査行を希望されながら実現できずに逝去された故佐藤正孝博 士に捧げて, JuliroasatoiS.UtNoと命名し, 公私にわたって長い年月のあいだわたしを支えてく ださったご厚意に感謝するよすがとしたい. References DEuVE,Th.,2004.Deuxnouve11esJuJlroacavernicolesdusuddotaChineetdunerdduVietnam(Coleoptera, Caraboidea).Bull.Soc.e,it. Fr., 109:361-366. JEDLi1、KA,A.,1961. MonographicderpalaarktischenT,aphoxenus-Arten(Coleoptera-Carabidae).Actaent. Mus natn.Pragae,34:167-219. SASAKAWA,K.,2006.SpeciationanddispersalprocessofJujiroaUtNo,1952(Coleoptera,Carabidae)inthe JapaneseArchipelago,withdescriptionsoffivenewspecies.Biogeography,Tokyo/Kawaguchi,8:45-53. UtNo, S.-l., &T. KISHIMoTo,2001. A new cavespeciesof thegenusJujiroa (Coleoptera,Carabidae, Platyninae)fromsouthernSichuan,SouthwestChina.J.speleo1.Soc.Japan,26:30-36. - &A.SAITo,1991.OccurrenceofJuJiroa(Coleoptera,Carabidae)onthehighmountainsofTaiwan. Ibid.,16:1-28. VIGNATAGLIANTI,A.,1995.AnewJujiroafromSichuan,China(Coleoptera,Carabidae).Int.J.Speleo1.,23 [for i994]:179-190.