Three New Species of the Genus Callistethus (Coleoptera, Scarabaeidae, Rutelinae) from Sulawesi and Mindanao

9 Pages·2002·9.8 MB·English

by  Wada, K

Eht,・a,To( ,o,30(1):173-181,June30.2002
ThreeNewSpeciesoftheGenusCa111stethus(Coleoptera,
Scarabaeidae,Rutelinae) fromSulawesiandMindanao
KaO「u WADA
2-17,Hijirigaoka,Tama-shi,Tokyo,206-0022Japan
Abstract ThreenewspeciesofthegenusCa11istet/ulsBLANCHARD,1850arede-
scribed from Sulawesi and Mindanao: C so,na1sp nov., Cto,1danoenslssp nov, (Su-
lawesi); Cmindanaoe,Isissp nov.(Mindanao).Ca11istelh1lso/faust immacu/atusHELLER,
1898isregardedasacolorvariationofCo11austo11aus1HELLER, l898.
ThegenusCa11istethusBLANCHARD,1850ischaracterizedbytheabsenceofpro-
trudingmesosterna1processandtheprosternum.Theohaus1group iseasilydistin-
gujshed fromothergroupsof thegenusby themesosterna1processveryshort and
roundedattheapex.Sixspeciesandonesubspeciesoftheohausigrouphavehitherto
beenrecordedfromJava,SumatraandSulawesi:Ca11istethustrivlttatusPERTY,1831,
C.ohausiohausiHELLER,1898,CohausilmmaculatusHELLER,1898,CepicholiCuS
OHAUs,1914,CaegrusOHAUs,1916,C.catoptricusOHAUS,1916andCfuSCiVent「IS
OHAUs,1926.
InthecourseofmytaxonomicstudyconcerningthegenusCa11istethus,I found
outsomesjbljngspeciesincludedintheohausigroup.Thoughtheyareverysimilarto
oneanotherandnoteasilydiscriminatedontheir facies,theyhavepeculiardiffe「enCeS
jntheshapeofthemalegenitaliaandtheinnersac.RecentlyIhaveexaminedinne「
sacsofspecmj ensfromvariousareasincludingthetypelocality,andamconvincedof
theirspeciation.
Inthjspaper,Iamgoingtodescribethreenewspeciesbelongingtotheohausi
group,ca11jstethussoma1sp nov., C tondanoenslssp nov.,andC mindanaOenSiSSP・
nov, the former two from Sulawesi and the latter from Mindanao. MACHATSCHKE
(1g72)regardedCa11istethusohausivar.immaculatusHELLER,1898asaSubspeciesof
C.ohaus1HELLER,1898,butitisnothingbutacolo「Va「iatiOn.
Beforegojngfurther, Iwishtoexpressmycordialappreciationto Dr. Kimio
MAsuMoToofOtsumawomens' University,Tokyo, forhisconstantencouragementof
myentomologicalstudies.DeepindebtednessshouldbeexpressedtoDr.Di「kAHRENS
ofthestaatlichesMuseumfiirTierkunde,Dresden,andDr.MartinBAEHRoftheZoo1o-
gjschestaatssammlung,Miinchen, forloaningmaterialsundertheircare.Mythanks
areduetoDr.wolfgangScHAwALLER,StaatlichesMuseumfiirNaturkunde,Stutt9a「t,
andMr carstenZORN,Dresden, fortheirkindhelpofmystudy.Mythanksa「ealso
174 Kaoru WADA
duetoDr.ShigeruDAIGoBo,Dr.YuIoKAwAandMr.TakahikoITO,JoetsuUniversity
ofEducation,Niigata, for theirhelpin takingstereoscopicmicroscopephotographs.
Finally, Iwishtoexpressmydeepest appreciationtoDr.Shun-IchiUENo,National
ScienceMuseum,Tokyo, forhiscritical readingofthemanuscript.Theho1otypesof
thesenewspecieswillbepreservedinthecollectionoftheDepartmentofZoology,
NationalScienceMuseum(Nat.Hist),Tokyo,andsomeoftheparatypeswillbepre-
servedinthecollectionoftheStaatlichesMuseumfiirTierkunde,Dresden.
CallistethusohausiHELLER,1898
(Figs.1,2,4,14)
Caliistethusohaus1HliLLER,1898,Abh.Ber.zool.Mus.Dresden,7,p 24.
Ca11istet/1usohausivar.1mmacu/atusHELLER,1898,Abh.Ber.zool.Mus.Dresden,7,p 25
Materialexamined. Holotype: Pie Bonthain,S.Sulawesi,Mus.Dresd.No.
,
9490.Paratypes:1(5、,samedataasfortheholotype,Mus.Dresd.No9490.1 ,Pangie,
S.Sulawesi,leg.H.RIBBE,Mus.Dresd.No il365.
Bodylength:14.8-16.8mm,width:8.7-9.4mm.
Dorsalsurface,tibiaeandtarsiyellowishbrowntoreddishbrown,ventralsurface
and femorayellowishbrown;headwithapairofbrownspotsinposteriorpart;prono-
tumwithapairofbrownspotsatthemiddleoflateralportion,apairoflongitudinal
brownlinesinlateral2/3,andalongitudinalvaguebrownlineinmiddle,theselines
beingvariableinsize;elytra,ventralsurfaceandlegswithvariouslysizedyellowish
browntoreddishbrownparts;pygidiumwithapairofbrownspotsinlateralportions;
legsanddorsalsurfaceexceptelytrawithgreenishmetalliclustre,elytrawithcoppery
metallicluster,ventralsurfacewithratherweakluster.
Headmicrosculptured;clypeusemarginate,about2.1-2.2timesaswideaslong,
reflexedalongoutermargin,denselypunctate,thepunctureslargeinmiddle,reticu_
latelyrugose-punctateinlateralportions;fronsdenselypunctateinmiddle,thepunc_
turesbecominglarger anddenser latera smallerandsparser towardsvertex, reticu_
latelyrugose-punctateinlateralportions;vertexirregularlyscatteredwithroundpunc_
tures.
Pronotumabout16timesaswideaslong,distinctlynarrowedapicadinapical
2/5,thencurvedinwardbasally,widenedposteriadinbasal t/5;frontanglesrectangu_
far,hindanglesslightlyroundedatcorners;discirregularlyscatteredwithsmallpunc_
turesinmiddle,whichbecomedenserandlargerlaterad,andellipticalandpartlycoa_
leScent inthelateralportions;lateralmarginsfurnishedwitha fewerectyellowsetae
(0.5-1.0mminlength)alongmargins,withrimsextendingtohindangles.Scutellum
irregularlyscatteredwithroundpunctures.
Elytrawitheightrowsofdeeproundpunctures,weaklywidenedinbasal4/5,nar_
「owedapiCadinposterior i/5; intervalsdenselypunctate, thepuncturesroundedjn
middle, becoming larger laterad and elliptical in lateral portions; distal margins
Slightlyrounded;lateralmarginswithrimsthickenedinbasal4/5,becomjngthjnnerjn
NewCc111istet111lsfromSulawesiandMindanao
175
1 2 3
Figs. l-3. HabitusofCa11istelhtlsspp;1,Cohaus1HF_LLF_R,1898,holotype, ;2,C ohails1imnlacu/a-
tusHELLER.1898,holotype, ;3,CmInda,lace,Isisspnov..holotype,
.
apical1/5,anddisappearingathindcorners;marginalmembranenarrow,startingfrom
basalhalf,andextendingtoapices.
Pygidiumreticulatelyrugu1ose,withsomeerectyellowishbrownsetae(0.5-1.05
mm inlength) inmarginalportion; outermarginsrimme nearly straight in lateral
sides,roundedatapex.
Metasternum sparsely punctate inmiddle, thepunctures largeandsetigerous,
each with a yellow suberect seta (0.25-0.75mm in length) in lateral portions;
mesosterna1processshort,withobtuseapexinlateralview.
Abdominalstemitesirregularlypunctate,thepunctureslargeandelongate,witha
transverserowofyellowdecumbentsetae(0.3-0.9mminlength)becomingdenserlat-
erad.
Foretibiaewithtwoouter teeth, theapicaloneobtuseandslightly roundedin
male; innerclawofforelegandouterclawofmiddlelegapicallyincise formingtwo
branches, theupper branchof forelegabout3/5timesthewidthof thelower one;
outerclawofforeleg,innerclawsofmiddleandhindlegssimpleandacuminate.
Callistethussomaisp nov.
(Figs 5,8,9)
Bodylength:15.2-16.5mm,width:8.1-8.8mm.
Antennae,tibiaeandtarsireddishbrown,bodyand femorayellowishbrown;head
withapairofbrownspotsattheposteriorpart, thesespotsvaryinginsizeandcon-
nectedwitheachother;pronotumwithapairoflongitudinalbrownlinesinlateral2/3,
176 Kaoru WADA
4 5
6
7
Figs. 4-7. Malegenitalia(scale:1mm). - 4,Ccl11istetlutso/faustHELLER,1898, lateralview;5,C
somaisp nov.,lateral view;6,Cto,Ida,7oe,tsissp nov.,lateralview;7,C,m,1danaoe,Isissp nov.
lateral view
andalongitudinalvaguebrownlineinmiddle;ventralsurface,tibiaeand femorawith
variouslysizedreddishbrownareas;pygidiumwithapairofbrownspotsatthemiddle
oflateralportions,apair ofbrownroundspotsatantero-latera1corners,andashort
longitudinalspotatthemiddleofapicalportion;hea elytra,tibiaeandtarsiwithcop-
perymetallic luster,pronotumwithgreenishmetalliclustre, femora,pygidium and
ventralsurfacewithratherweakluster.
Headmicrosculptured;clypeusbroadlyemarginate,about2.1-2.2timesaswide
aslong,weakly reflexedalongoutermargin,denselypunctate,thepuncturescoales-
centandreticulatelyrugose-punctate; fronsdenselypunctate,thepuncturescoalescent
andreticulatelyrugose-punctateinanteriortomiddleportions,becomingsmallerlat_
era smallerandsparsertowardsvertex;vertexirregularlyscatteredwithsmallpunc_
tures.
Pronotum about15-1.6timesaswideaslong,distinctlynarrowedapicadinapi_
Cal l/3,almostparallelinbasal2/3,weaklywidenedlateradbeforehindangles; front
an9lesobtuse,hindanglesrectangularandslightlyroundedatcorners;discirregularly
Scatteredwithpunctureswhicharesmallandroundinmiddle,becominglargerlaterad
andposteriad,ellipticalinantero-1atera1portions;lateralmarginsfurnishedwithafew
yellowerectsetae(0.1-0.23mminlength)alongmargins,withrimsextendjngtohjnd
angles.Scutellumirregularlyscatteredwithoblongpunctures.
Elytrawitheightrowsofdeeproundpunctures,weaklywidenedinanteriorhalf,
NewCaliistethtlsfromSulawesiandMindanao 177
narrowedposteriad in posteriorhalf; intervals irregularly scatteredwithroundpunc-
tures,whichbecomelarger in lateralportions;distalmarginsalmoststraight; lateral
marginswith rimsthickenedinbasal3/5,becomingthinner inapical2/5,anddisap-
pearingbeforehindcorners;marginalmembranenarrow,starting frombasal3/5, and
extendingtoapices.
Pygidiumweaklyreticulately rugu1ose, withsomeyellowerectsetae (0.45-0.8
mm in length) inmarginalportion;outermarginsrimmed,nearlystraight inlateral
sides,roundedatapex.
Metasternumpunctate, thepuncturessparseinmiddle, denseandsetigerous in
lateralportions,eachwithayellowsuberectseta(0.25-0.75mminlength);mesoster-
na1processshort,withapexobtuseinlateralview.
Abdominalsternitesirregularlypunctate,thepuncturesoblonginmiddle,becom-
ingdenser latera reticulately rugu1osein lateralportions,withatransverserowof
yellowdecumbentsetae(0.22-0.50mminlength)inapical2/5.
Foretjbjaewith twoouter teeth, theapicaloneobtuseandslightly roundedin
male,stoutandspatulateinfemale;innerclawofforelegandouterclawofmiddleleg
apically incised, forming twobranches, theupperbranchof forelegabout3/5the
wjdthofthelowerone;outerclawofforeleg,innerclawsofmiddleandhindlegssim-
pleandacuminate.
Holotype: Pedamaran,TanaToraja,Sulawesi,7-XII-1985,leg.K.SOMA.Allo-
,
type: ,samedataasfortheholotype.Paratypes:5 1 ,samedataasfortheholo-
,
type;2 2 ,samelocalityandcollectorasfortheholotype,7-VII-1985.
, ThisnewspeciesiscloselyrelatedtoCa11istethusohausiHELLER,1898,
Notes
butcanbedjstinguishedfromthelatterbythepronotumdifferentinshape,male9eni-
taliaofthepeculiarshapeandsmallsize.
Callistethustondanoensissp nov.
(Figs6,10,11)
Bodylength:14.9-17.6mm,width:8.1-9.1mm.
Dorsalsurface,tjbiaeandtarsidarkyellowishbrowntoreddishb「own,Vent「al
surfaceandfemorayellowishbrown;headwithapairofbrownspotsinPesto「iO「Pa「t;
pronotumwjthapairofbrownspotsatthemiddleoflateralportion,andaPal「of1on-
gltudjna1brownljnesinlateral2/3,andalongitudinalbrownlineinthemiddle,these
lniesbejngvarjablejnsize;elytrawithvariouslysizeddarkyellowishb「owna「eaS;
ventralsurfaceandlegswithvariouslysizedbrowntoblackareas;pygidiumWitha
longbrownljnejnthemiddleandalongapicalmargin,apairofbrownSpotsinlate「al
ions;elgsanddorsalsurfaceexceptelytrawithgreenishmetalliclust「e,elyt「aWith
port
copperyluster,ventralsurfacewithratherweak9reenishmeta11iCluSte「・
Headmjcrosculptured;clypeusemarginate,about2.2-2.3timesasWideaston9,
exedalongoutermargin,denselypunctate, thepuncturescoalescent inmiddle,
re
reticulatelyrugu1oseinlateralportions; fronsdenselypunctateinmiddle,thePunC-
178 Kaoru WADA
tureslargeinmiddle,coalescentandreticulatelyrugu1oseinanteriorportion,becom-
ing larger anddenser laterad, reticulately rugose-punctate in lateral portions, and
smallertowardsvertex.
Pronotumabout15timesaswideaslong,distinctlynarrowedinapical2/5,par-
allel-sidedinbasal3/5; frontanglesobtuse,hindanglesalmostrectangularatcorners;
discirregularlypunctate, thepuncturessmallinmiddle,becominglarger lateradand
posteria partlycoalescent inantero-1atera1portions; lateralmarginswitherect yel-
lowishbrownsetae(0.5-0.88mm inlength),rimmed,therimsextendingtohindan-
gles.Scutellumirregularlyscatteredwithroundpunctures.
Elytrawith8rowsofroundpunctures,weaklywidenedinanterior4/5,narrowed
posteriadinposterior i/5;intervalsdenselyscatteredwithlargeroundpunctures;distal
marginsalmoststraight; lateralmarginswith rimsthickenedinbasal4/5,becoming
thinner inapical 1/5, anddisappearingbeforehindcorners;marginalmembranenar-
row,startingfrombasalhalf,andextendingtoapices.
Pygidiumwithvaguedepressionsatantero-1atera1portions;discreticulatelyrugu-
lose,withsomeyellowishbrownerectsetae(0.25-0.75mminlength)inmarginalpor-
tion;outermarginsrimme nearlystraightinlateralsides,slightlytruncateatapex.
Metasternumirregularlypunctate,thepuncturessmallandsparseinmiddle,large
andsetigerousinlateralportions,eachwithayellowsuberectseta(0.37-0.8mm in
length);mesosterna1processshort,withapexslightlyroundedinlateralview.
Abdominal sternites irregularly punctate, thepunctures largeandelongate,be-
comingdenser laterad,eachsternitewithatransverserowofyellowdecumbentsetae
(0.25-0.75mminlength).
Foretibiaewith twoouterteeth, theapical oneobtuseandslightlyroundedin
male;innerclawof forelegandouterclawofmiddlelegapicallyincised, formingtwo
branches,theupperbranchofforelegabout3/5thewidthofthelowerone;outerclaw
offoreleg,innerclawsofmiddleandhindlegssimpleandacuminate.
Holotype: Tondano, N.Sulawesi,V-1988, N. NlsHIKAwA leg. Allotype:
, ,
samedataasfortheholotype.Paratypes:6 8 ,samedataasfortheholotype.
,
Notes. ThisnewspeciesiscloselyrelatedtoCa11zstethusohausiHELLER,1898,
butcanbedistinguishedfromthelatterbythepeculiarshapeofmalegenitalia.
Callistethusmindanaoensisspnov.
(Figs3,7,12,13)
Bodylength:14.1-17.0mm,width:8.4-9.4mm.
Dorsalsurfaceyellowishbrown, ventral surfaceexcept forabdominal sternjtes
yellowishbrown, abdominalsternitesyellowishbrowntoreddishbrown; headand
P「onotumwithstronggreenishmetallicluster,scutellum,elytra,propygidiumandpy_
gidiumwithcopperytogreenishmetallicluster,ventralsurfacewithcopperyluster.
Headwithsparse,erectreddishbrownsetae(0.42-0.57mminlength)alongeyes;
clypeusbroadlyrounded,about2.2-2.3timesaswideaslong,weaklyreflexedalong
NewC11iistet/11lsfromSulawesiandMindanao 179
8 9
10 11
1 2
13
14
Fjgs 8_14 MalegenitalorganofCa/11stet/ulsspp.(aedeaguswithanapicalPlate). - 8-9, CSOma1
sp nov,8 dorsal vjew,9,lateralview;10-11,C tondanoenslssp nov.,10,dorsalView,11,late「al
vjew,12_13, c ,nt,1danaoenslssp nov.,12, lateral view,13,dorsal view;14, C ohauSl HELLER,
1898,dorsalview.
180 Kaoru WADA
margins,closelypunctate, thepuncturesroundanddeep,partlycoalescentinmiddle,
becomingsparser laterad; fronsdistinctlypunctate,thepuncturesdeepandpartlycoa-
lescent inmiddle,becomingsparser lateradandposteriad;vertexscatteredwithsmall
roundpunctures.
Pronotum1.55-1.62timesaswideaslong,narrowedapicadinapical1/3,linearly
andslightlywidenedinbasal2/3; frontanglesobtuse,hindanglesalmostrectangular
andslightlyroundedatapices;discdenselypunctate,thepuncturesroundandsmallin
middle,becominglargerlatera withsparse,yellowishbrownsuberectsetae(0.55mm
inlength) alongmarginalportions; rimsoflateral marginsdisappearingbeforehind
angles.Scutellumtriangular,irregularlypunctate.
Elytrawithfourrowsofroundpunctures,weaklywidenedinanterior1/5,almost
parallel inmiddle,narrowedposteriadinposterior2/5; intervalsdenselypunctate,the
puncturesroundandlargeinmiddle,elliptical inlateralportions;distalmarginsalmost
straight; lateralmarginsrimmed,therimsthickenedinbasal3/5,becomingthinnerin
apical2/5anddisappearingathindcorners;marginalmembranenarrow,startingfrom
basalhalfandextendingtoapices.
Pygidiumreticulatelyrugu1ose,withsomeyellowishbrownerectsetae(0.15-0.7
mminlength)inapicalandlateralportions;outermarginsrimme nearlystraightlat-
erally,roundedatapex.
Metasternumsparselypunctateinmiddle,thepuncturessmall,becominglarger
anddenser laterad,eachwithalong,yellowdecumbentseta(0.45-0.8mminlength);
mesosterna1processshortwithapexroundedinlateralview.
Abdominal sternites irregularly punctate, the punctures sparse and crescent-
shape 1st to5thsterniteswithatransverserowofyellowishbrownsuberectsetae
(0.42-0.53mminlength)ineachlateralportion.
Foretibiaewithtwoouterteeth, theapical onenarrowandroundedatapexin
male,broadinfemale;innerclawof forelegandouterclawofmiddlelegapicallyin_
else formingtwobranches,theupperbranchofforelegslendererandslightlyshorter
thanthelowerone;outerclawofforeleg,innerclawofmiddleandhindlegssimple
andacuminate.
Holotype: Mt.Apo,MindanaoIs.,20-XII-1987.Allotype: ,samedataas for
,
theholotype.Paratypes:3 ,samedataasfortheholotype;3 2 ,samelocality
,
asfortheholotype,5-V-1987.
Notes. ThisnewspeciesisrelatedtoCa11istelhusohausiHELLER,1898,butcan
bedistinguishedfromthelatterbythedifferentcolorationofthedorsalsurfaceandpc_
culiarshapesofthemesosterna1processandthemalegenitalia.
要 約
和田 薫:スラウェシ島およびミンダナオ島から発見されたCa11isteth,,s属コガネムシの3新
種. - Ca11lstet/1us属のコガネムシ, C.so,flatsp nov., C to,1danoenstssp nov, をスラウェシ島
から, またC.1mndanaoe,mssp nov., をミンダナオ島からそれぞれ記載した. これらの種は中胸
NewCa11istethusfromSulawesiandMindanao 181
突起が短くてわずかに突出する特徴からohaus,群に含まれる種である. スラウェシ島の種はc
ohaus1HELLER,1898に非常によく似た種であり, 外形だけでの区別は難しいが, 雄交尾器およ
びその内部構造の形態の違いから区別できる. MAcHATscHK三」(l972)はCohaus,var.immaculatus
HELLER,1898を亜種として扱つてぃたが, 検討した結果, その特徴は色彩変異の一種であり,
形態の違いは雌の特徴を示している.
References
HELLER,K.M.,1898. NeueKafervonCelebes111. Abh.Be,:zool.Mils.Dt-esden,7:1-41.
MAcHATscHKE,J. W., 1972-'74. Scarabaeoidea: Me1o1onthidae, Rutelinae. In WILCOX, J. A. (ed),
Coleopte・,orum(ata1ogusSupplementa, (ed 2),(66):i-i十i 1-361[1972]十i十363-429[1974].Junk,
's-Gravenhage.
Etytra, 「okvo,30(1):181-182,June30,2002
ANewRecordofAceralusaequa11s(GRAVELY)(Coleoptera,Passalidae)
fromLaos,withNotesontheGeographicVariation
of
aequafzs
Masahiro KoN
SchoolofEnvironmentalScience,TheUniversityofShigaPrefecture,
Hassaka-cho,Hikone,522-8533Japan
AceraiusaequaliswasdescribedbyGRAVELY(1918)asOphrygonlusaequalisfromChaPa
[=SaPa],Vietnam.Later,BOUCHER(1993)transferredthisspeciestothegenusAceralus.Re-
cently,KoNandFuKINuKl(2001)recordedthisspeciesfromtheChinHills,Myanmar.When
theauthorexaminedaseriesofspecimensofthePassalidaefromnortheasternLaos,hefound
threespecimensofA aequa11samongthem.ThisisthefirstrecordofthisspeciesfromLaos.
Its collectiondataare as follows: 2 , 19, Mt.PhuPhan, 1,500-2,000m,BanSaluei, Hua
PhanProv.,Laos,20°15'N,104°02'E,26-IV~11-V-2001,J.BEzDEKleg.
TheauthormadeacomparisonbetweenthespecimensofAceraiusaequalisfromVietnam,
LaosandMyanmar.Consequently,nonoticeabledifferencewasfoundbetweentheVietnamese
andLaotianspecimens.However,itwasrevealedthatthespecimensfromtheChinHills,Myan-
mardifferalittle fromtheVietnameseandLaotianonesinthefollowingpoints:uppertoothof
leftmandiblerepresentedasasmalldenticlepointedupwardsandalittleforwards,whereasitis
represented as an obtuse angle in thespecimens from Vietnam and Laos; outer tubercles