A Review of Glaphyra hattorii (Coleoptera, Cerambycidae), with Description of a New Subgenus

2006·5.4 MB·

by  Niisato, T

El、・fia,Tok、・o,34(1):223-232,May20.2006
AReviewof(:ilaphyrahattorii(Coleoptera,Cerambycidae),
withDescriptionofaNewSubgenus
TatsuyaNIlsATo
BioindicatorCo.,Ltd..Yarai-cho126,Shinjuku,Tokyo,162-0805Japan
Abstract Anewsubgenus.}(1,11atog/aph、:,・lanov.isestablishedforG/1ph、:・,-a/lat-
te''ll(01-IB、YAsHl)forthereasonofsuchpeculiaritiesasthefinevelvetypubescenceonthe
antennaestartingfromsegment3.thevestigialpresternalprocess, thesimpleanalveinof
thehindwingandthemarkedlyelongatemalegenitalorgan.ThclcctotypcofG. /1attol・ll
isdesignatedinviewofthelosso、ftheholotype.Twocomponentsofthenewsubgenusarc
redescribed.
Introduction
Glaphyr'ahattorI1(0HBAYAsHI,1954)isaratherraremo1orchinemonophagouson
Elaeagnus(Elaeagnaceae), and is knowntooccur ineasternHonshuand southern
HokkaidooftheJapaneseIslands. Thoughhavingunico1oredsmallblackbodyordi-
narylookinginfaciesatfirstsight,Ghattor11isprovidedwithsuchhighlyspecialized
structuresasthefinevelvetypubescenceontheantennaestarting fromsegment3.the
vestigialpresternal process, thesimpleanal veinof thehindwing,andsoon. It is
doubtlessthatanewhighertaxonshouldbeproposed forGhatto,-t1sinceitsautapo-
morphiesareclearlydiscriminated fromthoseofany other congeners of thegenus
Glaphy1a' NEwMAN.
Themainpurposeofthepresentpaper istoerectthesubgenusY』(nlat)glaph、1-(1
nov for G hatto,-lI,andalsotoredescribetwocomponentsofthenewsubgenus,with
designationofthelectotypeforthetypespecies.
SubgenusYanlatoglaphyranov.
Typespecies: Motel'chushatto11'10HBAYAsHl,1954.
Small-sizedmo1orchineofwhollyblackishcoloration, with relativelyshortap-
pendages.Colourblacktoblackishbrown,moreor lessdull, withoutmaculationon
elytra. Hairs and pubescencesparse in general, without pubescent maculation on
pronotumand ventral surface;antennae,clothedwith fne velvety pubescence from
segment3toterminus.
Head less voluminous withlargebut weakly prominenteyes,almost equal in
width tothebaseofpronotum;genaeveryshallow;mandiblesshort,brie yhookedat
apices;maxillary andlabial palpi relatively short. Antennae longas orslightly
as
224 TatsuyaNils、T()
longer thanbody in 11-segmented,slightly broadened towardsapical segments,
,
withscapehardlyclavate,middlesegmentscompressed,terminalsegmentsimple,not
pedunculateat theextremity in(3.Pronotumelongate,moderately narrowedapicad,
withsmall tuberclesatsidesbehindmiddle,withdiscalmostevenlypuncturedexcept
for thesmoothareasatsidesandposterior tomiddle.Elytralong,about14timesas
longaswide,attainingtoabdominal tergite3,completelycoveredwiththesidesof
metathorax, narrowlydehiscent at least inapical fifth,completely attenedinprofile
evennearapices.Hindwingreachingtergite6,withsimpleveintA3十2A,andwithout
vein3A.Presternalprocessvestigial.invisibleinexternal view.Legswithhindfemur
weaklyclavate,tarsalsegmentsshort.
Medianlobeofmalegenitalorganmarkedlylongandslender,elongate,withlong
medianstruts,dorsalplatesimply narrowedapicad. Tegmenwithparameresaturate-
formed,withafewveryshortsetaeatapex.Tergite8longerthanwide.Sternite8sub-
quadrate,concaveatmiddleofapicalmargin.
Range. Japan:S.Hokkaido(0shimaPen)andE.Honshu;China:Sichuanand
Gansu
Notes. Itmaybepossible toestablisha full genus forG hattor11 because of
suchhighlyspecializedcharacterstatesasmentionedabove.Itisdoubtlessthatthepu-
bescenceontheantennae,thevestigialpresternalprocessandthewingvenationinthe
typespeciesareallautapomorphiesseparablefromanyothercongenersofGlaphy1a'.
Inthemembersofthenominotypica1subgenus,thefinevelvetypubescenceonthean-
tennaestartsfromsegment4or5,thepresternalprocessisusuallywelldevelope and
thehindwingsareprovidedwithwelldevelopedvein3A.Thenewsubgenusiscom-
posedofthe followingtwoisolatedspeciesfromJapanandChina.
Glaphyra(Y‘amatoglapllyr'a)hattorii(OHBAYAsHI, l954)
(Figs.1-3,5-6)
1fo1orc'/1tis(s.str)1/ _01'1lOHBAYAs1-11.1954.Ent.Arb. Mus.Frey 5.p.13: typelocality: Inadanoborito,
Tokyo[sic;correctlyKanagawa].
Glap1/y1・a/1tltto,・11:H、、'^sill, l983,Check-listColeopt_1apan,(24),p it.
Gla/)1/、1,て1(subgen?)/1at1o1・ll:NIlsATo, l992,1llustr.GuideLongic.-Bcctl.Japan,p492.
Bodylength5.0-8.4mm(fromapicalmarginofclypeustoabdominalapex).
Smalltomedium-sizedspeciesofrelativelyslenderbody.Colourblacktobrown-
ishblack,weaklyshiny,withfaintdarkbluishgreentintonelytra,almostalwayschest-
nut brownonappendages, tarsi andpalpi yellowishbrown. Hairs ingeneral long,
rathersparseandsilverywhiteincolour,especiallylonganderectonhead,pronotum
andatelytra1bases.
Male. Headmoderate,aswideasthemaximumwidthof pronotum,scattered
withcoarsepunctures; frons3/4thelengthofthebasalwidth, attened, witha fine
weakmediangroove,usuallysmoothonanteriorhalf;clypeusstrongly transverse, ar-
cuatelyemarginateatbothbasalandapicalmargins;genae1/3thedepthoflowereye-
ReviewofG/af・り・,, altai,o・,1'
225
3
clapり/・,-a(rama一ー-a)species. - 1,a(つ} Ila//o'?1(0HBAi - , f「omt O
Figspe1n ofHokkaido;2, ditto, from AomoriofN.Honshu;3,ditto,leCtOtyPe f「omTSukeC io i
pref..c.Honshu;4,G.(Y)aemulataHoLzscHuH, fromGanSu,NW・China・
226 TatsuyaNllsATo
lobesjn frontalvjew. Antennaratherstout,nearlyequalinlengthtobody,WithPale
brownvelvetypubescenceonapicaleightsegments;scapeconical,COa「SelyPunCtu「ed,
slightlylongerthansegment3andequalinlengthtosegment4,so9mentS3and4dis-
tinctlythickenedapicad,segments5-9moreorlesscompressed,So9menSt 6and7(o「
8)nearlyequalinlengthandthelongest,1.4timesaston9asscape,te「mina1Se9ment
hardlyarcuate.
pronotummoderatelylong,1.6timesaslongasapicaland12timesaston9as
maxjmumwidth,slightlycontractedtoapex;sidesalmoststraightlydilatedtoblunt
lateraltuberclesatbasal7/20,thenarcuatelynarrowedtobasalcollar;discweaklyCon-
vex,almostalwaysraisedatmiddleandsidesofbasal fourth,sometimesatthesidesof
apical fourth, closely coarsely punctured throughout except for the longitudinal
smoothareajustbehindmiddleandtwopairsofroundedonesatsidesbeforeandbe-
hindmiddle,thoughthelateralsmoothareasaresometimesconnectedor inconspicu-
ousaccordingtoindividuals.Scutellumsmall,spatulate,denselypalepubescent.
Elytralong,1.4timesaslongasthehumeralwidth,attainingtothebaseoftergite
3;sideswithweaklybutroundlyproducedhumeri,almoststraightlynarrowedtoapi-
cal2/7,thenarcuatelynarrowedtoseparatelyroundedapices,withsuturenarrowlyde-
hiscentinapical3/14;disccompletelyflattenedinprofile,ratherwidelydepressednear
suturebehindscutellum,gentlysoonobliquepartnearmiddle,closelycoarselypunc-
turedthroughout.
Venterofthoracescloselyandheavilypunctured,withstrongtransversefurrows
onprosternum,denselypalepubescentonmesothoraxandnearhindcoxae.Abdomen
elongate,arcuatelydilatedapicadinbasal threeventrites, thenarcuatelynarrowedto
anal ventritewhich iswidelyemarginateatapicalmargin, rathersparselyprovided
withlargepuncturesandpalehairs.
Le9sratherstout;hindpairwithfemurweaklyclavateinapical3/5,tibiadensely
P「oVidedwithminutedents,1stsegmentoftarsusalittleshorterthanthefo11owjng
twocombined.
Male9enita1o「9anmoderatelysclerotizedandremarkablyelongate,wjthmedjan
1obealittleleSSthanhalfthelengthofabdomen.Tergite8withweaklyroundedapical
ma「9inWhichboa「SSeveralmeduim-sizedsetae.Sternite8separatelyroundedatapical
ma「9induetodeepmedianconcavity,witheachlobeprovjdedwjthshortIomedium_
Sized Setae・Median lobemarkedly slender except for somewhat thickened
base
Weaklya「CuateinP「ofile,Withdorsalplateaml oststrajghtlynarrowed10thesublrun_
ateapex,Whichexposesthebluntapicalpartofventralpalte;medianstrutsslendera
ittel elSSthanahalftheelngthofmedainolbe.Tegmenwjhlparamereeolngatesatu'_
laet'Sli9htlythickenedOtWa「dapex,whichsiprovjdedwjthtwoveryshortsetae p
::;ale・Antennaeme「eSlender thanin
, reachjng the base of terg1te5
pron ShO「to「thanin ,Withfen9th1.5timesatapicalor12tmi esatthemaxi
m m .dtlf,Sides9entlya「Cuatelydilatedtoveryweaktuberclesatbasal5/2
do l in al「yi a「CuateatSides,withanalventrjtetruncateatapex Ab
eCu00'P feSf9naf101'・G/aPり/''a' 1/affor1'(0HBAYAsHl,1954)wasOriginallydo_
ReviewofG/ao/n・,・r1/Ia'rot-11 227
Fig.5. G/a 1/v1・a(ya,11afog/ap/11・,a)/7arro1・11(0HBA、'Asl-lリ, fromMinamiaizu,Honshu
scribedunder thegenusMo1o1-chusonthebasisoftwofemalespecimenscollectedat
twodifferent localities,“Inadanoborito、Tokyo” and“Tsukechi, Gifu”. Theholotype
fromInadanoboritowaspreservedintheprivatecollectionofHitoshiHATToR1andthe
paratype fromTsukechi isintheauthor'scollectionaswasmentionedintheoriginal
description.AccordingtoapersonalcommunicationfromMr.H. HATToRI,theholo-
typespecimeninhisprivatecollectionwaslostmorethanthirtyyearsago.Therefore,I
wouldliketodesignatethe femaleparatype fromTsukechi asthelectotypeof this
species.ThislectotypespecimenwasillustratedinOHBAYAsHI(1963,pi t44,fig.19).
Lectotype: , Mo1orchus hatto1-11 0HBAYAsHI: “Tsukechi/Gifu1、J3.1952/H.
Ohiraleg”“Paratype(yellowishorangecard)”“Mo1orchus(s.str)hattoriimihi/DET.
K. 0HBAYAsHl”“0hbayashi-zu251”.Thefollowingtwolabelsareaddedtothefoote-
type:“LECTOTYPE/Mo1o1・chushatto1・110HBAYAsHI,1954(redcard)”and“Glaply1'a
(Yamatoglaphy,a)hattor11(0HBAYAsHI,1954)/Det.T.N、IsATo,2006.Thelectotypeis
atpresentpreservedintheEntomologicalLaboratory,EhimeUniversity,Matsuyama.
Specimense、.,amlned. [Hokkaido]12 3 Haraguchi, Matsumae-cho, 0-
, ,
shimaPen., Hokkaido,N. ls1-llHAMAleg; 35 19 ,samelocalityandcollectoras
,
the preceding, 29-V-1996. [Honshu] 2 2 Hirataki-mura, Kizukuri-machi,
, ,
Nishitsugaru-gun, Aomori Pref., N. Honshu, 18-V-1996, R. MIKAMI leg; ld, 19,
228 TatsuyaNllsATo
Yoshizumi-cho, YonezawaCity, YamagataProf., 21-IV-1984, K. YosHIKAwA leg;
2 4 Yunohana-Hinoemata,Minamiaizu-gun,FukusimaProf.,22~23-V-1982,
, ,
H.MIURA&M.TAKEDAleg;2 Shimobe,YamanashiProf.,C.Honshu,hostcoll. in
,
XI-2003,emergedoutinIV-2004,T.NllsAToleg;1 1 Kaida-kogen,Kaida-mura,
, ,
hostcollected in V-1982,emergedouton24~26-IV-1983,K.YosHIKAwA leg;1(3,
1!,YokelSportsPark,ShimadaCity,ShizuokaProf.,17-IV-1988,K. IcHIKAwAleg;
3 4 Tokunokuchi,IshikawaPref.,C. Honshu,12-V-1990, M.IMuRAleg;1
, ,
(1ectotypedesignatedabove),Tsukechi,GifuPref.,3-V-1952,H.0HIRAleg.
Distribution. Hokkaido(0shimaPen)(newrecord)andE.Honshu,Japan.
Hostplants. Elaeagnusm1lltjf1o1'aTHUNB.var.crispa(MAXIM). Itismostprob-
able that G hattor11ismonophagousonEmultjfioraoratleastonElaeagnusshrubs.
ThereportofAceraldzuensemaybemisidentificationoftheElaeagnusspecies(nee
YUzAwA,1977).
Notes. Nogeographical variation isshown in thespecimenslistedabove. The
specimensfromvariouslocalitiesofEastJapanaslistedaboveperfectlyagreeinevery
respectintheco1orartion,bodysizeandotherexternalmorphology.
Thisspecies wasconsidered tobeoneof the rarest species in the Japanese
mo1orchinesuntil thediscoveryofthehostplant in1982bythe lateKenichiEMoTo.
Forinstance,thehabitatatthetypelocalitynear “Inadanoborito” wasdeterioratedby
urbanization,andonly a fewadditionalspecimenswerecollectedbeforethe1970's.
LarvaeofG hatto1・t1areeasily foundat present from freshlydeadtwigsofE multi-
fora.However,naturalhabitatsofG hattoriiaregenerally much limitecしandusually
threatenedbytheimpactofcollectors.
Glaphyr、'a(Y‘amatoglaphyra)aemul,ataHoLzscHUH,1998
(Fig4)
Glaphy1・aae,mllataHoLzscHul-l,1998,FBVA-Berichte,(107),p38,fig48;typelocality:“China,Sichuan,
Nanping:Jiuzhaigou,2500m”.
Body length6.2-7.4mm.CloselyrelatedtoGhattorii incoloration,arrangement
ofpubescenceandconformationofbody,butbarely discriminatedbythe following
characteristics:1)Antennaelongerandslenderer,exceedingbodyatsegment10in
orreachingthebaseoftergite6in ;2)pronotumlonger,1.4timesin or f 3 times
in as longasthewidthacrossblunt lateral tuberclesbehindmiddle,withdisca1
punctationweakerthan that ofG hattor1i.Suchothercharactersastherelativelength
ofantennalsegmentsshownintheoriginaldescriptioncannotbeused fordifferentia-
tion,at least intheadditionalspecimenexamined.
Additionalspecimenexamined. 1?, Liujiaping (劉家坪), 2,000m in alt.,Won
Xin,GansuProv.,27-VI-1998,W-ICHOUleg.
Distribution. SichuanandGansu(newrecordfortheprovince),China.
Notes. Thesingleadditional specimenexamined fromGansuProvincedoubt-
lessbelongstothisspeciessincenodifferencewasobservedincomparisonwiththe
ReveiwofG/ap1/1,/a,/,af
' /01?/
Will9;b,!enl
nnni venlfafmandbl.Jeni
etrglte8IndVeiw;fme-
t5mn1)forf_「SalView;J,
230 TatsuyaNIIsAT0
Fig. 7. DistributionofGlaphy,a(Ya,natog/aph、,,a)species
originaldescriptionmadeonthespecimens fromSichuan.Glaphy1・aaemulatamay
occurratherwidelyonhighermountainsofwesterntonorthwesternChina.
GlaphytaaemulataalmostperfectlyagreeswiththeJapaneseG hattorii and is
barelydistinguishedbytheslenderbody form,especiallyinthelongerantennaeand
pronotum.It isveryinterestingthatsuchclosesimilaritiesare foundbetweentwoiso-
latedspeciesfromeasternJapanandwesternChina;theoriginofYatmatoglaphyramay
beratheroldwithinthemembersofGlaphyrainspiteofthehighlyspecializedbody
structure.
Acknowledgements
IwishtoexpressmyindebtednesstoDr.Shun-lobiUENo forhiscontinuousguid-
a ReviewofG/aJ・n'' /1_01'l 231
anceand for readingtheoriginalmanuscriptofthispaper.Special thanksaredueto
Dr.NobuoOHBAYAsHIofEhimeUniversityandDr.Wen-ICHOUofTaiwanUniversity,
Messrs.Kyoji IcHIKAwA,NorioIsHIHAMA,HideakiMIURA,MasashiTAKEDAandKen
YosHIKAwAfor their lendingorofferingtheinvaluableGlaphyramaterialusedinthe
presentstudy,andalso toDr.YasuakiWATANABEandMr.HitoshiHATToR1for their
kindnessingivingmedetailedinformationabouttheholotypeofMo1orchushattor11.
要 約
新里達也: クロツヤヒゲナガコバネカミキリの分類学的考察ならびに新亜属の記載. - ク
ロツヤヒゲナガコバネカミキリは東日本にやや局所的に分布する種で, 幼虫はグミ類 (バラ科)
の専門食として知られている. 本種は, 一見すると黒色で目立った特徴の少ないヒゲナガコバ
ネカミキリ類であるが, 触角第3節以降に細徴毛を備え, 前胸腹板突起が退化して見かけ上消
失し, 後翅臀脈が1本の縦脈(IA,+2A)で構成されるなどの特異性が, 新里(1992)によりすで
に指摘されてきている. これらの一連の形態は, ヒゲナガコバネカミキリ属のいかなる種とも
明確に区別でき, 本種と近縁種に固有の派生形質と考えられるため, 本種を基準種に新亜属
Ya1natoglaphy,-a (クロツヤヒゲナガコバネカミキリ亜属;和名新称) を創設した.
新亜属の構成種は束日本のクロツヤヒゲナガコバネカミキリとともに, 中国西部から比較的
最近になって発見された(J/aphy,-aaemu/ataの合計2種が知られている. この2種は大陸中央部
と日本列島東部にそれぞれに隔離された分布域をもつが, 形態的にはきわめて近緑で, わずか
に触角や前胸背板が長いなどの点で区別できるにすぎない. 大陸と本州に遠く離れて孤立した
集団が, このように形態的分化の低い状態にあることはたいへん興味深く, 多くの派生的な形
質をもつクロツヤヒゲナガコバネカミキリ亜属の起源が, 予想外に古いものではなぃかとぃう
可能性を暗示している.
なお, クロツヤヒゲナガコバネカミキリの正基準標本の紛失したことが保管者により証明さ
れたために, 本論文のなかで, 基準標本系列の岐l 阜県産の副基準標本を後基準標本に指定し
た.
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