A New Species of the Neoplesius-Pseudocranion Complex (Coleoptera, Carabidae) Discovered from the Southernmost Part of the Min Shan Mountains in Northern Sichuan, Southwest China

2006·2.9 MB·

by  Imura, Y

E/、・t,a,Totk、・o,34(1):1-5、May20、2006
ANewSpeciesoftheNo〔)pleslus-Pseudocran1onComplex
(Coleoptera,Carabidae)DiscoveredfromtheSouthernmost
Part ofthe MinShan Mountainsin
NorthernSichuan,SouthwestChina
Ytiki IMURA
Shinohara-cho1249-8,Kohoku-ku,Yokohama,222-0026Japan
Abstract A new species of the Carabina belonging to the Neop/esltls-
Pse1ldoc,an1o,1complexisdescribedfromthesouthernmostpartoftheMinShanMoun-
tainsinnorthernSichuan,SouthwestChina.underthenamePseudoc''a'lion.;l'lao1o11g.
Inthesummerof2005,alongseriesofcarabidspecimenswerecollected from
theuppermostpartoftheSi'ergouValley locatednear thesouthernmostpartof the
MinShanMountainsstretching fromnorthtosouthalongtheeasternbankoftheMin
JiangRiver innorthernSichuan,SouthwestChina,andtheyweresubmittedtome for
study.0fthese,whatIamgoingtointroduceinthispaper isauniquenewspeciesbe-
longingtotheNeopleslus-Pseudoc1・anioncomplexofthedivisionProcrustigenici.At
firstsight, thespeciesinquestionremindsusofcertainspeciesbelongingtotheN.
slchuanicola-N dlacoseriesofnorth-central Sichuan. Therobustaedeagus of the
speciesresemblesthatofthe .s1noflフfef1co/cl - ._x,laoefongf- fl'lcillpemlsseriesof
western Sichuan. However, itspenultimatesegment of the labial palpusis tri- or
quadriseloseand Iamgoingtodescribeitasanewspeciesbelongingtothe9enus
pseudoc1・anion,mostcloselyalliedtop1・elnont/1tmilsdescribedfromPingwuofnorth-
ernSichuan.
ThehigherclassificationoftheCarabinaadoptedhereinisthesameasthatpro-
posedbymyself(IMURA,2002b),andtheabbreviationsusedinthetextarethesameas
thoseexplainedinmypreviouspapers(cf.IMuRA,1990,p.139;2002a,P.130).
Beforegojngjntodescription,IwishtoexpressmyheartfeltthankstoMess「S.
IgorBELoUsov(st.petersburg,Russia)andIlyaKABAK(Almaty,Kazakhstan)fo「thei「
kjnd cooperatjon. Also I thank Dr. Shun-lobi UENo (National Science Museum,
Tokyo)forreviewingthemanuscriptofthisPaper.
Pseudocranloltxiaolo'tgIMURA,SP nov・
(Figs.1-3)
Length (jncludingmandibles): , 19.7-21.7 (arithmetic mean 20.70)mm;
,
YukiIMUltA
Figs. l -2. Pse1ldoc''a'lion_、'tt1o/o,lgfromtheSi'ergouValley(ca.3、800m)innorthernSichuan. _ l
holotype,2, ,paratype.
,
22.4-24.3(arithmeticmean23.48)mm.
Dorsal surface rather mat, dark brownish coppery or partly reddish coppery,
sometimesbearinga faintgreenishtingeonhead;venterandappendagesbrownjsh
black,thoughthebasalpartsofmandibles,andthoseofantennaeandclawsarealjttle
reddish.
HeadnotStronglyhypertrophicasintheothermembersofthegenus,wjthmoder_
ateIy Concave f「ental furrows and strongly rugose-punctate vertex; retjnaculum of
mandiblesnotlongitudinallyelongatedasintheothermembersofthegenusbutrather
na「「oWlyproducedinwardsandconspicuouslybidentateattips,wjththeanterjortooth
alittleShe「te「thanthePosterioronbothsides;terminalsegmentsofpalpinotstrongly
dilatedinbothSexes;penultimatesegmentoflabialpalpustri_orquadrisetose;medjan
tooth of mentum notStrongly producedventrad,shorter thanlateral lobes,wjth the
apexeithe「t「ianguIarlypointedorratherobtuselyroundedwithafajntre_entranceat
tip;Submentumasetose;antennaereachingthemiddleofelytrainmaleandslightly
NewPetlt1oc''ante'1fromNorthernSichuan
Fig 3. Malegenitalorganoff)s.etl11ocla,lie,1.1・lao/eng. - a,Aedeaguswithfullyoverfedcndopha11us
inrightlateralview;b,apicalparto「aedeagusinrightlateralview,c,dittoindorsalview.scale:
2mmfora: l mm forb& c
beyondthebasalquarterinfemale.
Pronotumsubquadrateorsubcordate,wider thanlong,widestalittlebeforethe
middle,moregraduallynarrowedtowardsapexthantowardsbase;PW/HW1.21-1.28
(M I25),PW/PL121-1.37(MI31),PW/PAWl36-1.45(M I41),PW/PBW l25-
1.38(M I32),PBW/PAW1.02-1.13(M1.07); apicalmarginweakly tomoderately
emarginate, frontanglesobtuselyroundedandhardlyprotrudedanteriad;lateralsides
distinctlymargined throughout, gently roundedin front andsinuately narrowed to-
wardshindangleswhichareshortandsubtriangularIyproducedpostero-1atera1lywith
blunttips;discweaklyconvexabove,withthesurfaceremarkablywrinkledandoften
becomingratherscabrous;basal foveaenotsolargebutratherdeeplyconcave,median
longitudinal linenarrowlyimpressedandpartlybecomingunclear;onlyasinglemar-
ginalsetainsertedoneithersideofpronotumnearthewidestpart,andposteriorsetais
absent.
Elytraelongatedoval,moderatelyor rather strongly convexabove, widest obvi-
ouslybehindthemiddle,moregraduallynarrowedtowardsbasesthantowardsapices,
witheffacedshoulders;EW/PW151-1.82(M I68),EL/EW148-1.79(M I 65); lat-
eralsidesgentlyarcuatethroughout,withthemarginsnarrowlyreflexedabovebefore
thewidestpart;sculpturetriploidheterodyname - primariesthestrongest,segmented
by small but rather deeply concaveprimary foveoles to form rowsof narrowcostae
YukiIMURA
withvariouslength;secondariesweakerandnarrowerthanprimaries,indicatedbyir-
regularlysegmentedlowcostaeorlongitudinallyarrangedrowsofsmallgranules; ter-
tiaries much more reduced to form rows ofsmallgranules; areasbetweenintervals
rathercoarselyscatteredwithsmallgranules;umbilicateseriesindicatedbyirregularly
andsporadicallysetrowsoffinegranules.
Episternaalmostsmooththoughvaguelyandsporadicallyscatteredwithpunc-
tures,sidesofsternitesweaklywrinkled,sternalsulciunrecognized;metacoxatrjse_
tose;basal foursegmentsofmaleforetarsusdilatedwithhairpadsonventralsurface.
MalegenitaliaasshowninFig 3;aedeagusrobust, hardlyarcuateinbasaland
medianportions,weaklybentventradinapicalportion,andstronglyconcaveright
ventradnearapicalquarter;apicallobeofaedeagusveryshort,weaklyhookedventra
ratherstronglycompressedright laterad,andobtuselyroundedattip; 0L medium_
sizedandremarkablybilobedattip;endopha11uswiththeligulumindicatedby1ongitu_
clinallysetrowsofgranulesto formanarrowridge,neitherBLnorMLdeveloped,
PREindicatedbyapairofhemispherica11yprotrudedhairlyinflations,PARpromj_
nentlyprotrudedandsymmetrical,PPnotsolarge,symmetricalandwell-protruded
dorsa AL,PLandAGGunremarkable.
Type series. Holotype: , near the headwater ofSi'ergou [1四耳 ] Valley
(32°19'07″N/103°49'03″E),3,801minaltitude, insoutheasternSongpanXian[松活
],ofnorthernSichuan,SouthwestChina,21-VII-2005,tobedepositedintheDe_
Pa「tment ofZoology,NationalScienceMuseum (Nat.Hist), Tokyo.Paratypes: 1(5、,
19,samedataasfortheholotype;1!,samearea(32°19'09〃N/103°49'00″E,3,850m
inaltitude),20-VII-2005;2 ,samearea(32°19'23″N/103°48'59″E,3,872mjnaItj_
tude),22-VII-2005,separatelypreservedinthecollectionsofY. IMURAandthezoo_
logicalInstituteofAcademyofSciences(St.Petersburg).
Notes. Morphologically, thenewspeciesismostcloselyalliedtot:) remondj_
anus DEuVE (1996) described from Sanlukou, 2,800m, near pingwu of northern
SiChuan,butreadilydiscriminatedfromthatspeciesasfollows:1)sjzealjttlesmaller
andColo「ationdarkeraboveallinlegs;2)headlesshypertrophic;3)mandiblesshorter
andme「eStrOn9lyarcuateinwards; 4) retinaculumofmandibles1ongjtudjnalIy less
eton9atedandmoreremarkablybidentateattip;5)antennaealjttlelonger;6)prone_
tumlessSt「onglycordate,withmuchmoreunevendisca1surface,shorterhjndangles
andSma11e「numberofmar9ina1setae; 7)elevated parts ofelytra1intervalsmore
P「eminentlyreco9nizable;8)apicallobeofaedeagusmuchshorterandlesssharply
pointedattip,podianlobeofendopha11usvestigial.
Etymology. Thenewspecificname,)ciao/eng [小 ],means small Dragonjn
Chinese,Sincetheno speciesresemblessuperficia11yNeoples1'usd;・ace(=DragonIn
Latin)desc「ibedbyBREZNIA(1999,p it9)fromMt.JjudjngShanonthechaplng
ShanMountainRange,andalittlesmallerinthesjze
NewPset11()(・・ra,lie,1fromNorthernSichuan
要 約
井村有希:中国四川省北部から発見されたチペットオサムシーニセキンオサムシ詳に属する
オサムシの1新種. - 2005年の夏, 中国四川省山民山山脈南部にある1四耳、 の源頭付近に
いて得られたチベットオサムシーニセキンオサムシ鮮に属するオサムシのl種を検した結果,
フl、記載種と判明したので, Pse,,decl・a,,io,,.xiao/o1,gという名のもとに新種として記載した.
Reference
BREzlNA,B.,1999. Anew(al・abusspecies(Coleoptera:Carabidac)fromtheJiudingShanMountainsin
northernSichuan,CentralChina. Fo11t1He、,,o、s/n,t111a 7:119-l22.
DEuvE, Th., 1996. ContributionalaconnaissancedosgenresCa,abtls L., C、,c・1/・,usF etCyc1/ropsls
BolLEAUonAsie(Coleoptera,Carabidae). Co/eo/)le・ie、.・、Gu、a,Ioctl''1.2:103-122.
IMURA,Y.,1990. SystematicpositionofCa,-ablls、. tl11nc1llt、l andthealliedspecies(Coleoptera.Carabidae)
fromChina,withdescriptionofano、vspecies. El、:,t1・a,◆「'o(/:l・0,18:137-l53.
- 2002a. Proposalofeighteennewgeneraandsubgeneraof thesubtribeCarabina(Coleoptera,
Carabidae). Spec.Bull.Jp11.Soc.Cole〔)pte1・o/.,Tok、,o,(5):129-147.
- 2002b. ClassificationofthesubtribeCarabina(Colcoptcra,Carabidae)basedonmolecularphy-
logeny. E:1、t,・a,nokyo,30:1-28.
E_、l,t,-a, 「cine,34(1):5-6,May20,2006
ANewPseudocoptolabrus(Coleoptera,Carabidae)
fromNorthernMyanmar
Yuki IMURA
Shinohara-cho1249-8,Kohoku-ku,Yokohama,222-0026Japan
Pseudocoptolabrus″lasa1liroiIMURA,sp nov.
(Fig.1)
Length(jncludingmandibles):21.0mm(?).Entirelyblackandrathermat.
Desc1-lpt1on
Mostcloselya1ljedtoRbl・anaung1(IMURA,1999)describedfromthenorthernendofMyanma「,
butdjffersfromthatspeciesinthefollowingpoints:1)proportionmuchslende「e「,WithIon9e「
antennaeandlegs;2)mandibleslonger,narrowerandmoregraduallytaperedtowa「dSthetips,
wjththeanterjortoothofrightretinaculumshorterthantheposterior;3)penultimateSe9mentof
labja1palpusbjsetose;4)pronotumlesstransverse,1.16timesaswideaslong,me「eSt「on9ly
constrjctedtowardsbase,wjththehindanglesmoresharplypointedatthetips;5)elyt「amuch
moreelongated,1.87timesaslongaswide;6)aedeagus1ongerandslenderer,aboveallinaPi-