The Trechinae (Coleoptera) from Mt. Gongga Shan and its Vicinities, Southwest China, with Notes on the Epaphiopsis from Mt. Emei Shan

25 Pages·1998·27.3 MB·English

by  Ueno, S-I

Elyt,・a,「okyo,26(2):263-287,November15,1998
TheTrechinae(Coleoptera) fromMt.GonggaShanand
itsVicinities,SouthwestChina,withNotesonthe
EpaphzopslsfromMt.cruelShan
Shun-lobi UENo
DepartmentofZoology,NationalScienceMuseum(Nat.Hist),
3-23-1Hyakunin-cho,Shinjuku,Tokyo,169-0073Japan
Abstract TrechinebeetlesfromMt.GonggaShananditsvicinitiesareenumer-
ated.ThemountainscoveredareMt.GonggaShan,theDichiShanMts tothesouthwest,
theZheduoShanMts tothenorth,andtheJiajinShanandtheDaxiangLingMts tothe
east. 0f theninespeciesrecorde fivearedescribedasbeingnewandarenamedEpa-
phiopsis(Epaphiama)nlbafromtheDaxiangLings, E.(E)e,1angensisfromtheJiaJin
Shans, Quelnnect・,e〔thus z7/eduoshanusand Q g/acla/1s from the Zheduo Shans, and
n-echus(s.str)nom1″al fromtheJiajinShans.Mt.GonggaShanitselfharboursthree
knownSpeciesonitseasternslope,Pc''lleptus(s.str)dentico11isJEANNEL,Epaphiopsis
(Pseudepap1/ius)gonggaica(DEUvE)andQuelnnect,'echussmetana1S.UENo,thefirstone
ofwhichisnewlyrecordedfromSichuan.FromtheDichiShans,onlyoneanophthalmic
species, Duvalioblemus sic11uanlcus DEuvE, has been known. Epaphiopsisper,・caul
(DEuvE),oneofthetwospeciesofthegenusdescribedfromMt.cruelShan,whichlieson
theeasterncontinuationof theDaxiangLingMountains, istransferredtothesubgenus
Pseudepaphius,whiletheother,Ebudhalca(DEuvE),isregardedasamemberofthesub-
genusEpaphia,nainspiteofitsexternalsimilaritytoPseudepaphius.
Theprimary purposeof thepresentpaper isto recordthetrechinebeetlescol-
lectedbyAlesSMETANAattheeasternsideofMt.GonggaShan,thehighestandmost
famousmountaininSichuan,SouthwestChina.Threespeciesofthreegenera,Perilep-
tus(s.str)dentico11isJEANNEL,Epaphiopsls(Pseudepaphius)gonggaica(DEUvE)and
QueinnectrechussmetanaiS.UENo,havesofarbeenfound,allhavingbeenpreviously
described thoughthefirstoneisnewly recorded fromSichuan.Theremainingtwoare
probably restricted toMt.GonggaShanandexhibitaninterestingpatternofdistribu-
tionwiththeircongeners.
TheothermountainrangessurroundingMt.GonggaShanalsoharbourrespective
endemicspecies, whoseaffinitiesarenot necessarily closeto theGonggaShanones.
FromtheDichiShanMountainsto thesouthwest, onlyoneanophthalmicspecies, Du-
valioblemusslchuanlcus,hasbeenknown,anditscongenershaveneverbeenmetwith
untilnowonothernearbymountainseventhoughrepeatedinvestigationsweremade.
From theZheduoShanMountains to thenorth, twonew Queinnectrechushavebeen
known.FromtheJiajinShanMountainslyingtotheeastbeyondthedeepvalleyofthe
264 Shun-lobiUENo
DaduHeRiver,twonewspeciesoftheTrechinae,anEpaph1opsisandaTrechus,have
beencollected,buttheEpaphio- sissubgenerica11ydifferent fromtheGonggaShan
species and fromtheDaxiangLingMountainsalsototheeast,anothernewspeciesof
EpaphiopslsisfoundandshowsacloseaffinitytotheJiajinShanspecies,nottothe
GonggaShanone(E gonggalca).
Needlesstosay,thisoverviewisnotnecessarilyexact,sincecollectionshavebeen
madeonlyatsomelimitedplaces.Becauseofverysteeptopography, itisverydiffi-
cult,ifnotimpossible,tomakeextensiveresearchesthroughoutthemountainranges.
However, it seemstomenot useless toenumeratenow thetrechinebeetleshitherto
known from these mountains, since an intricate feature of the trechine fauna of
Sichuancanbeglimpsedfromit.
Fortheconvenienceof futurestudies,IwillgivesomeaccountsofthetwoEpa-
phiopsisspeciesdescribed fromMt.EmeiShan,awellknownsacredmountainlying
attheeasternendoftheeasterncontinuationoftheDaxiangLingMountains.Boththe
specieswereoriginallydescribedasbelongingtoEpaphlama,butoneofthem,E.pc,-
reau1(DEUvE),hasacloseraffinitytoE gonggalca(DEUvE)andbelongstothesub-
genusPseudepaphius. Theother one,E budhalca (DEuvE), also shows the elytra1
chaetotaxycharacteristicofPseudepaphius,butis identical inthebasicconformation
ofitsmalegenitaliawiththeDaxiangLingandtheJiajinShanspecies,andtherefore
hadbetterberegardedasamember ofEpaphiama. Themalegenitaliaof thelatter
specieswereerroneouslydescribedbySc1AKY(1995,p 67,fig 4)asthoseofE.per-
reaui,but thoseof trueperreauiwerealreadydescribedby DEuvEhimself(1988,p.
258, fig. l5) inhisoriginaldescription. Besides,SclAKY'sdescription isnot accurate
incertaincriticalpoints,sothatclarificationoftheconfusionisnecessary fordescrib-
ingthenewspeciesfromthewesternmountains.
Theabbreviationsusedhereinarethesameasthoseexplained inpreviouspapers
ofmine.
Beforegoing further, I wish toexpressmy heartfelt thanksto colleagues and
friendsofmine,firstofalltoDr.AleysSMETANAwhogavemetheopportunitytotake
upthisstudybyofferinghisrichcollectiontomefor taxonomicexamination,andto
Drs. MasatakaSATo, Yoshiaki NIsHIKAwAandShuhei NoMURAaswell astoMessrs.
Toshio KIsHIMoTo,FANTingandZHAoLijun for theirkindhelpinthefield.Hearty
thanksarealsoduetoDr.ThierryDEUvEandDr.M.BRANcUcclwhogavemepermis-
siontoreexaminetypeandotherimportantspecimensundertheircare.
Periieptus(s.str.)denticollisJEANNEL,1923
Pc'1'1eptusdenttco11isJEANNEL,1923,Ann.Magnat.Hist.,(9),12,pp397,406;typearea:Yun-Nan. -
UENo,1996,Elytra,Tokyo,24,p 20.
Pc'1/eptus(s.str)dentico11is:JEANNEL,1926,Abei11e,Paris,32,pp408,426,figs202-204.
Other referencesareomitted.
Specimense)camined. 1 (somewhat tenera1),1?,“CHINASichuan/Gongga
TrechinesofGonggaShananditsVicinities 265
Shan,Moxi/1250m,11.VII.1996/29°13N102°10EC62//collectedby/A.Smetana”.
Notes. ThoughpreviouslyknownwithcertaintyonlyfromthevicinitiesofDali
in western Yunnan(cf.UENo, 1996), thisspeciesseemswidelydistributed in the
mountainousareasofYunnanandSichuan.TheMoxispecimensrecordedaboveagree
wellwiththeDaliones,henceidenticalwiththetypematerial. They werecollected
“onasmallbankofveryfinegravel”ofa“smallcreekemptyinginarivernearMoxi”,
“withsparse,lowvegetation”.
Epllphiopsis' (Pseudepaphius)gong;galea(DEuvE,1992),stat nov.
Epap11ia,nagong;gaicusDEuvE,1992,Bull.Soc.ent.Fr.,97,p.180,figs.10,20;typelocality:Moxi.
Epaphio-s(A11epap1;tama)go1lggaica:SclAKY,1995,Entbasil.,18,p 65.
Length:2.95-3.75mm(fromapicalmarginofclypeustoapicesofelytra).
Considerably variableinsize,coloration,body proportion,elytra1striation,and
evenintheelytra1chaetotaxy,butthevariationiscontinuousandthemalegenitaliaare
identicalbetweenthetwoextremesofsizeandshape.
Colourusuallydarkreddishbrownwithblackelytra,whoselateral marginsand
sutural intervalsaredarkreddishbrown,ratherstronglyiridescentonelytraandsome-
timesalso on pronotum; head o量on infuscated; antennae, buccal appendages, pro-
pleura,epipleuraandlegsyellowishbrown.lnsomespecimens,thebodyisconco1or-
ously black and devoid of reddish margins, but theappendages are clearly pale
coloured.Thereareotherspecimenswhosebodyiswhollydarkreddishbrown,infus-
catedonlyonthediscofeachelytron,andwithweakiridescenceontheelytra.
Head,pronotumandelytraasdescribedintheoriginaldescription,buttheprono-
tum issometimesampler andmoretransversethanintheordinary individuals,with
the sides less strongly arcuate, and the elytra are sometimes narrower with less
roundedsidesthaninmostotherspecimens.Elytra1striaeusuallysuperficial,stria1al-
wayscomplete,2usuallytraceablethroughoutthoughsometimesevanescent inbasal
area,3morefrequentlyobsoleteatthetwoends,4-5usually vestigialando量on frag-
mentary; insomeindividuals,striae1-2distinctlyimpressedthroughout,3alsocom-
pletethoughshallower thaninnertwo,andeven4traceablethroughout.Elytra1stria3
usuallywithtwosetiferousdorsalpores,but rarelywiththreeporesononeelytronor
evenonboththeelytra;interval5orstria5almostalwayswithasinglesetiferousdor-
salporeonly,but rarelywithasecondporebehindtheordinaryoneononeelytron.
Preapica1porelocatedontheapicaldeclivityalmostalwaysbehindtheleve1oftheter-
minusofapicalstrictoanda(ijoiningstria2,sometimeslocatedontheapicalanasto-
mosisofstriae2and3asinthespeciesofEpaphiama.
Add前ona1specimensexamined. 3 2 “CHINA,Sichuan,Gongga/Shan,
, ,
aboveCamp3/3050m,22.VII i994/A.Smetana[CI8]”;1d,19,samelocalitybut
“abv.Camp33300-/3350m,23.VII i994”/“[CI9]”;3ed, 7 ,samelocalitybut
“Lakeabv.Camp2/2750m,24.VII i994”/“[C20]”;3 ,samelocalitybut“above
Camp 2/2750m, 25.VII i994”/“[C21]”; 1d, same locality but “aboveCamp 2/
266 Shun-lobiUENo
2750m,25.VII i994”/“[C22]”; 2ed,5 ,samelocality but“Lakeabv. Camp2/
2750m,25.VII i994”/“[C23]”;19,samelocality but“aboveCamp2/2850m,26.
VII i994”/“[C24]”;1 ,samelocality,altitudeanddate,but“[C25]”; ldsamelocal-
ity anddate,but “2800m”/“[C26]”; 3 ,same locality but“Lakeabv. Camp2/
2750m,27.VII i994”/“[C27]”; 1d,1 (tenera1),“CHINASichuanGongga/Shan,
Hailuogou,above/Camp3,3050m6.VII 96/29°35N102°00EC52//collectedby/
A. Smetana”; 1 (tenera1),same locality anddate, but“3000m”/“[C53]”; 15 d
13 , same locality but “Hailuogou, in front of/Glacier 1, 2800m 9.VII 96”/
“[C58]”: 11ed, 11 , same locality but“Lake/aboveCamp2, 2750m/29°35N
102°00 E, 4.VII./1998, A.Smetana [C74]//1998ChinaExpedition/J. Farkac, D.
Kra1,/J.Schneider/& A.Smetana”; 10(5d,7 ,samelocalitybut“Hailuogou, for./
aboveCamp2,2800m/29°35N102°00E,5.VII./1998,A.Smetana[C75]”.
Localities. All theknowncollectingsitesofthistrechinebeetlearelocatedin
theHailuogou aboveMoxi in LudingXian, western Sichuan, between 2,750mand
3,350minaltitude.ThevalleyrunsdowntheeasternslopeofMt.GonggaShanandis
well knownasascenicplace. Itmay occur inother valleysofMoxi Zhen, likethe
MoxiGouandtheYanziGou,butnointensiveinvestigationshaveso farbeenmadein
thoseplaces.
Notes. This is an unusually variablespecies, whose largest individuals look
specificallydifferent fromthesmallest.Indee Ihadanimpressionthatthereoccurred
twoormorespeciesofEpaphiopsisintheHailuogouonMt.GonggaShanwhenIre-
ceived fromSMETANA thefirst lot ofhis collection of theTrechinaemade in 1994 in
theMoxiarea.Thankstohisrichmaterialcollectedlater in1996and1998,however,I
wasfinally convincedthatall thespecimensofEpaphiopsisfromtheHailuogoube-
longtoasinglevariablespecies,E gonggalca,thoughIhaveneverseensuchavari-
abilityinanystrictlylocalizedspeciesofflightlesstrechines.
Epaphiopslsgonggalcaisalsopeculiar inthedispositionofthepreapica1poreon
theelytra,whichapproachestothestatecharacteristicofEpaphiama.Inotherrespects,
however, itseemsclosesttoE.perreau1ofMt.EmeiShanofallthedescribedspecies
ofEpaphiopsls,andthereforehadbetterberegardedasaspecializedmember ofthe
subgenus Pseudepaphius. Similar inconsistency of “diagnostic” characters is also
foundinundescribedspeciesofthegenusfromsouthernSichuanandnorthernViet-
nam(UENo,unpub1data),sothatathoroughrevisionofthecontinental formsofthis
groupoftrechinebeetlesisneededforobtainingasatisfactoryunderstandingoftheir
phy1ogenetica1relationships. Incidentally, both E gonggaica and E. perreau1have
strongiridescenceontheirelytra,a featurewhichisonlyexceptionally foundinthe
AsianTrechinae.
AccordingtoSMETANA,E gonggalcaseemstooccur invariousenvironment,but
wasmost abundantona“sidemoraineovergrownby deciduousshrubsand trees”,
wherethetrechinewascollectedby“siftingrottingleavesandotherdebrisincrevices
betweentherocks,andofhumusdeeperundertherocks”.Manyotherspecimenswere
s量l edout from“thick layers ofmosson thegroundandon fallen trees” inmixed
Trechineso「GonggaShananditsVicinities 267
forests,“particularlyunderthegrowthsoflargerhododendrons
pap io -'s(ipap lama)m'0aS.UENo,sp nov.
(Figs.l-3)
Length:3.00-3.15mm(fromapicalmarginofclypeustoapicesofelytra).
Closely similar toE budhalca(DEuvE) fromMt.EmeiShan,butrecognizedat
firstsighton thepositionofpreapica1poreonelytra,which issettledat theapical
anastomosisofstriae2and3inthefieldofapicalstricto.Besides, thepronotum is
morestrongly contracted at the baseand has morewidely rounded sides, and the
aedeagusismuchthickerandhasmuchlargerbasalpart.
Body robust,glabrousonbothdorsumandventer; innerwingsabsent.Colour
reddishbrown,shiny;elytrausuallyalittlelighterthan forebodyand faintly irides-
cent;buccalappendages,antennae,venterofprothoraxandhindbody,andlegsmore
orlesslighterthandorsum.
Head transverse, withdeep frontal furrows whichareobtusely subangulateat
middleandwidelydivergentposteriad; fronsandsupraorbitalareasgentlyconvex,the
latterbearing twopairofsupraorbitalsetaeonlinessubpara11e1toeachother;mi-
crosculpturecoarse,mostlyconsistingofwidemeshesbut partially (particularlyon
vertex)ofisodiametricones;eyessmallandflat,thoughalwaysevidentlylongerthan
genae,thelattertumid,completelyglabrous,andthree-eighthstothree-fifthsaslongas
eyes;neckverywide,neckconstrictiondeepandsharplymarkedatthesides;labrum
shallowlyemarginateattheapex;mental toothporrect,eitherbifidorslightlyemar-
ginateat thetip;palpishortandstout;antennaeshortandstout,subfiliform,reachin9
basalfifthofelytrain(S,usuallyreachingbasalsixthofelytrain ,segment2about
fjve_sjxthsaslongassegment3or4,segments5-10graduallydecreasinginlengthto-
wardsapex,eachsubova1and15timesormoreaslongaswide,terminalsegmentthe
longest,slightlylongerbutnarrowerthanscape.
pronotumlarge, transverse,obviouslywiderthanhead,widestatabout four-sev-
enthsfrombase,andalittlemoregraduallynarrowedtowardsbasethantowardsapex;
pw/Hw142_1.51(MI45),PW/PL133-1.48(MI39),PW/PAt46-1.63(MI52),
pw/pBl38_1.50(MI.44);sidesmoderatelyborderedthroughout,moderatelyarcuate
jnfront,lesssobehincしandhardlyoronlyveryslightlysinuateclosetoobtusehind
angles;twopajrofmargjna1setaepresent,theposteriorpairslightlyremovedfoWr a「dS
from hindangles; apex slightlyemarginate,somewhat narrower than base, PB/PA
102_10g (M 1.06), with front angles narrowly rounded and not produced; base
sljghtlyarcuateatmiddle,verybrieflyandroundlyobliqueoneachsideclosetohind
angles;surfaceconvex,particularlyattheantero-1atera1parts,microsculPtu「eCOnSiSt-
jngoffjnetransverselinesthoughpartiallyobliterated;medianlinedistinct,Widened
jnbasalarea;apical transverseimpressionshallowthoughobvious;basal t「anSVe「Se
1mpressjondjstjnct,withalongitudinalfoveoleoneachsideofmedianline,andlate一「
allyarcuateposteriad;basalfoveaefairlylargeanddeep;postan9ularCa「inaeShe「tand
268 Shun-lobiUENo
Fi9. 1. Epap1/iopsls (Epaphia'na) nlba S. UENo, sp nov., fromMt. NibaShanof theDaxiang
LingMountains. ,
obtuse;basalareamoreorlessuneven,oftenlongitudinallystrigose.
Elytraovate,wider thanprothorax,widestatabout four-ninths frombases,and
moregraduallynarrowedtowardsbasesthantowardsapices,whicharerathernarrowly
andalmostConjointlyrounded;EW/PW124-1.40(M I34),EL/PL2.43_264(M
2.58),EL/EW135-1.49(M I39);shouldersrounde(i,notsoprominentasinc bu_
dhaica,withprehumera1bordersslightlyarcuateandalittlemoreobliquethaninE
budhalca;sidesmoderatelyre?exedthroughout,morewidelysothaninc budhalca,
TrechinesofGonggaShananditsVicinities 269
gentlyarcuateatmiddle,graduallyconvergentbehin andrathernarrowlyandalmost
conjointlyroundedatapices;dorsumconvexthoughlightlydepressedonthediscin
basalthird;apicaldeclivityrathersteep;microsculptureformedbyfinetransverselines
thoughlargelyobliterated;striaeentire, finelybutdistinctlypunctate,stria3usually
formingapicalanastomosiswithstria2,stria8deeplyimpressedbehindthemiddleset
ofmarginalumbilicatepores;scutellarstrictoshortbutclearly impressed;apicalstri-
ctoshort but deep,moderatelycurve freeattheanteriorendthoughdirectedtostria
5;intervalsmostlyflat,apicalcarinaobtuse;stria3withtwosetiferousdorsalporesat
about1/4and l/2frombase,respectively;preapica1porelocatedattheapicalanasto-
mosisofstriae2and3oratleastontheapicaldeclivitymuchbehindthelevelofthe
terminusofapicalstriole; interval5orstria5withasinglesetiferousdorsalporeat
about2/3frombase;marginalumbilicateporeswellaggregatedandregular.
Ventralsurfacesmooth;analsternitebisetosein (i quadrisetosein Legsshort
.
andstout;protibiaeratherwidelydilatedtowardsapices, feeblyarcuateinapicalthird,
andlongitudinally groovedoneachexternal face; tarsomere1aboutas longastar-
someres2-3together inbothmeso-andmetatarsi;ind, twoproximalprotarsomeres
widelydilate stoutly producedinwardsatapices,and furnishedbeneathwithadhe-
siveappendages.
Malegenitalorganidentical inbasicconformationwiththatofE budhaica(cf.
284-285, figs 6-7), butmuch thicker, with obviously larger basal bulb, sig-
pp
moidallycurvedapicalpartpointedatthetip,andmoredevelopedteeth-patchcover-
ingthewholeinnersac.Aedeagusabout two-fifthsaslongaselytra,stronglyarcuate
particularlyinproximalhalf,andinprofile,graduallyacuminatefrombehindmiddle;
basalpartverylarge,stronglycurvedventrad,withsmallbasalorificewhichfacessub-
apicalpartofmedianlobe;nosagittalaileron;apicalparttwistedtotherightandsig-
moidallycurvedonthehorizontalplanesoastomaketheapical lobeparalleltothe
mainaxis;vieweddorsally,apicallobeelongatedsubtriangularwiththeextremitynar-
rowlyrounded;viewedlaterally,apical lobeproducedobliquelyventradandstraightly
tapered tothepointedextremity;ventralmargindeeply emarginatebeforemiddlein
profile. Innersacarmedwithavery longslendercopulatorypiece,whoseapicalhook
islongerthaninc budhaica;teeth-patchmoreextensivethaninc budhaica,particu-
larlyinitsproximalpart.Stylesasinc budhaicathoughobviouslythicker.
Type set・ies. Holotype: d allotype: 26-IX-1996, S. UENo leg. Paratypes:
,
4 d, 2 (incl tenera12 d,19),26-IX-1996,S.UENo &S.NoMuRAleg.Allde-
positedatpresent in thecollectionoftheDepartmentofZoology,NationalScience
Museum(Nat.Hist),Tokyo.
Typelocality. Mt. NibaShan,2,320minaltitude, of theDaxiang LingMoun-
tains,inYingjingXianofwesternSichuan,SouthwestChina.
Notes. Thoughevidently different fromE budhaica of Mt. cruel Shan in the
positionofthepreapica1pore,E nlbasharesthepeculiaraedeaga1structurewiththe
latterspecies.Thisisenigmaticifwefollowthecurrentclassificationoftrechinebee-
tles,sincetheformercharacterstateisregardedasadiagnosticfeatureofthesubgenus
270 Shun-lobiUENo
j
・
o
5
、 /
/、一一 /
Figs. 2-5. MalegenitaliaofEpaphiopsis(Epaphiama)spp; leftlateralview(2,4),andapicalpartof
aedeagus,dorso-apica1view(3,5). - 2-3.E.(E)mbaS.UENo,sp nov., fromMt.NibaShanof
theDaxiangLingMountains. - 4-5.E.(E)erlangensisS.UENo,sp nov., fromMt.ErlangShan
oftheJiajinShanMountains.
EPaPhiamaJEANNEL(1962, pp. 175, 188;UENo, 1978, p. l25), not found in any
speciesofPseudepaphiusS.UENo(1962,p 70)withtheexceptionofE gong:galea
(refer tothenoteonpp 265,266).Sofarasconcernedwiththeexternal features,E
budhaicahastoberegardedasamemberofPseudepaphius,buttoadoptsuchaclassi_
TrechinesofGonggaShananditsVicinities 271
7
-、 -ー◆-,
-/.'''''・'l
ノ
,
l /
、、__/
l l
0.3 mm
Fi9S. 6-7. MalegenitaliaofEpaphiopsls(Epaphia,na)budhaica(DEuvE), fromLeidongpingonMt
cruelShan;leftlateralview(6),andapicalpartofaedeagus,dorso-apicalview(7).
ficationiscontradictorytothefactthatitsmalegenitaliaarecloselysimilartothoseof
E nlba and E erlangensis,bothofwhichshouldbelongtoEpaphlama.Besides,E
budhaicaismuchclosertothetwowesternspeciesthantoE.perreau1andEgong_
gazcainitsexternalmorphologyexcept forthepositionofthepreapica1pore.I there_
foreregardEbudhalcaasanaberrantspeciesofEpaphiamadirectlyrelatedtoE nlba
andE e11'angensis.Furtherdiscussiononthissubjectwillbegivenattheendofthis
paperundertheheadingofEpaphiopsls(Epaphiama)budhaica(DEuvE).
ThetypespecimensofE nlbawereobtainedbysiftingleaflitterinasecondary
forestofdeciduousandevergreenbroadleavedtreeswithpatchesofbamboogroves.
ThisforestislocatedattheheadofanarrowbranchoftheYangtanGoutothenorth-
eastof thepassoftheDaxiangLingMountainscalledtheNibaShan Yakou,andis
about72kmdistanttothewestbynorthfromMt.cruelShan.Thebeetlewasbyno
meanscommon,onlyeightspecimenshavingbeencollectedafterhoursofsiftings
madebyfourentomologists,probablyduetolimitationoffavourablehabitat.
Epaphiopsis(Epaphiama)erlangensisS.UENo,sp
nov.
(Figs.4-5,8)
Length:2.90-3.10mm(fromapicalmarginofclypeustoapicesofelytra).
CloselyalliedtoE nlbaandagreeingwiththelatter inmany respects,but the
prothoraxisrelativelynarrowonanaverageandalittlelesscontractedattheapex,the
apicalstrictooneachelytronislessarcuateanteriadandusuallydirectedtostria7,and
theaedeagusisalittlelargerandobviouslythicker.
Colourasinc nlba,thougho量oninfuscatedonthediscofeachelytron.
272 Shun-lobiUENo
Fjg 8. Epaphjopsls(Epaphiama)et・1angenslsS.UENo,sp nov., , fromMt.ErlangShanof theJiajin
ShanMountains.
Head as in c nlba,withgenaeone-fourthtotwo-thirdsaslongaseyes;antennae
somewhatthicker thanin c nlba,thoughusuallyreachingbasalfifthofelytra.
Pronotumsomewhatnarroweronanaveragethaninc nlba,widestatabout four-
sevenths frombase,and rathergraduallynarrowed towardsapexandbase;PW/HW
1.35-1.48(M I41),PW/PL127-1.40(MI35),PW/PA t38-1.53(M I46),PW/PB
1.36-1.45(M I 39),PB/PA1.00-1.09(M1.05);sidesmoregentlyarcuatethan in
.