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Guatemala 産 Simulium (Simulium) Latreille 属 の 1 新種の記載と S. (S.) metallicum Bellardi の再記載

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(1)

Guatemala 産 Simulium (Simulium) Latreille 属 の 1 新種の記載と S. (S.) metallicum Bellardi  の再記載

著者 Okazawa Takao, Onishi Osamu journal or

publication title

衞生動物 = Medical entomology and zoology

volume 31

number 3

page range 167‑179

year 1980‑09‑15

URL http://hdl.handle.net/2297/11695

(2)

屏縢鱸櫻糯騨薄灘譲鱸》鐇騨鯲料蕊

〔JapJ・Sanit,Zool Vol、31No.3 pl67-1791980〕

DescriptionofanewSpeciesofS〃"ノノ剛(S伽"ノノ棚)

LatremeandredescriPtionofS〃"ノノ脚(S〃"ノノ伽)

川clfaノノ伽川BenarClifrolnGuatenlala

(Diptera:Simuliidae)*

叩I■CJluPi‐味一sr阯0●rⅡ‐し』》・肝』‐pⅢ。↑’1,1叩DIIlllIt●l凸o1I16や1‐LSl1IIf6q

TakaoOKAzAwA**andOsamuONIsHI***

La6oMoγioaeI>zucsZigac伽Csα〃城cas‘`D抗ZmoTaaa,,汐amCb冗加Mem

O"choce7・CO鍼S,Sb”ic〃」MzcfD"αZ‘んEmzaicacjd〃cJemMZzmがα,

5αAUC"〃α,ZZ-乎0,Zb"αZZ,α"ααα‘たG"αze柳α肱,G"α花加α〃

(Received:December24’1979)

AbStract:AnewantllropophilicspeciesofthegenusSYタブz"胸加(sジブ,z"肋、)Latreille isdescribedfromtheendemicareaofhumanonchocerciasisinGuatemalaandalsoS (SlMz伽Z"cz`"zBellardiisredescribed・T11enewspeciesisverysimilartoS(SL)

meZZz〃cz`、,wllichisoneoftlleVectorofhumanoncllocerciasisintropicalAmerica,

andseparablebythefeaturesofgenitaliaatadultstageandbycolorationatlarval

stage.

lnthecourseofoursurveyonblacMlies

asapartoftl1eonchocerciasiscontrolprOject inthemunicipalitiesSanVicentePacayaand Palin,DepartmentEscuintla,Guatemala,we fbundanewspeciesofthegenusSYタブz"胸加 (S伽"/如加)Latreille・Thisspeciesclosely

resemblesS.(S・Mz伽肋czZmBellardiatall stages.S(8)meZzzZZjcz"?zisoneofthemost commonanthropophilicspeciesandhave beenconsideredtobeavectorofhuman

onchocerciasisinCentralAmerica(Gibson

andDalmat,1952)andinnortllernSoutll

America(LewisandlMnez,1962).The

larvaeofthisnewspeciesarealsocommonly collectedandadultfemalesareoftencaptured

frommanmixedwithSk(SMz抑Z"cz`mat coffeeplantationareainGuatemala・The so-calledSk(SMzcZzzZZ伽"zinGuatemalais

thougl1ttohavebeenincludingthiSnew

species・Inthepresentpaperthenewspe‐

ciesisdescribedatadult,pupalandlarval stages,andalsoSk(Sb)〃zeZzzZZjcz`"zisrede‐

scribedfbrmakingacleardistinctionsince tllepreviousdescriptionsareinsufIicient.

醜"0"伽川(Si"M"川0)んowJcioi newspecies

肋7z"恥加(S航"吻沈)sP、Onishi,OkazaWa

andOclloa,1977,GkノCRCPO-MnVHAP

R妙伽,NO2,ppl-8(larva,

pupalrespiratoryorgan)

Dcsc7か伽〃

Zne77zqりん.Generalbodycolordarkbrown

toblack・Length:2.3-2.6mm,wing2.5-2.8

1nm・

Headbrownisllblackcoveredwithblack

llairs、Honsfaintlygreyishpollinose,with

someblackllairsalonglateralmargin,width atvertexandantennalbasesubequaLabout l/2aswideaslength,andl/5widthofhead・

ClypeUsgreyishpollinose,1ongerthamwidth,

withsparseblackllairs・Occiputcovered witlldenselongblackllairsdorsally・AnteL

*ThisstudywassupportedbytheMiniStry ofPublicHealth,GuatemalaandtheJapan lnternationalCooperationAgency,Japan

(GJCRCPO-MENSAPSeriesNo、2)

**Presentaddress:ZoologiCalInstitute,Fac‐

ultyofScience,HokkaidoUniversity,

SapporoO60,Japan

***Presentaddress:SanitaryPestControl

Section,CenterofEpidemicPrevent,Kyoto

604,Japan

**岡沢孝雄:北海道大学理学部動物学教室

(〒060札幌市北区北10西8)

***大西修:京都市防疫事務所(〒604京都市中

京区壬生東高田町1)

167

(3)

灘,

VoL31No、31980 169

sclerotized,armsmoderatelybroad,distally ratherheavilysclerotizedSpermatl1eca ovoid,longerthanwide,heavilypigmented,

withasmallclearcircularareaatjunction withspermathecalduct・

MzZe・Generalbodycolorbrownishblack toblack・Length:body2.6-3.0mm,Wing

22-2.4mm・

Fronsbrownishblack,greyishpollinose、

Clypeusdarkbrown,slightlylighterthan frons,withbrownishblackhairsPosterior marginofeyeswitharowoflong,erect,

blackllairs・Uppereyefacetsinaboutl6 rows・OcciputwithblaCkhairslaterally・

Antennadarkbrown,scapeandpedicel oftenyellowisl1brown,basalportionoffirSt flagellomereusuallyyellowishbrown,dorso- distalmarginofscapeanddorsalmarginof pedicelwitharowofblackbristles;first flagellomerel、3-1.5timesaslongaspedicel;

allsegmentscoveredwithfinebrownpubes‐

cences,intersparsedwithpalebrownhairs exceptforscapeandpediceLMaxillary palpuSbrownwithbrownishblackhairs;

segmentmshorterandslightlywiderthan segmentⅣ,segmentVabouttwiceaslong assegmentm・Sensoryvesicleaboutl/3- 1/41engthofitssegment・

Pronotumdarkbrown,withdarkbrown hairs・Scutumdarkpurplishbrownto velvetybrownishblack,coveredwithgolden hairs;bandsofwhitishpollinosityextending mediodorsallyfromanterolateralmarginof scutum,betweenbandsV-shapedgreyish pollinosity,asawholeappearinginverted W-shapedinfrontview;lateralmargin withwidewhitisl1pollinosity,whichcon‐

tinuestobroad,greyishpollmoseprescutellar part;allpollinositiesiridescentatsome angleinliglltasthoseoffemale;prescutel‐

lumwithratllerlongblackishbrownhairs・

Scutellumdarkbrown,anteriorlycovered withhairsconcolorouswiththoseofpre‐

scutellum,posteriorlywitharowoflong,

erect,blackhairs.Postscutellumdark brown,greyishpollinose.P1eurondark brown,lighterthanscutum,denselygreyish pollinose;mesepimeraltuftsmallandshort,

ofblackhairs、Wingmembranel1yaline;

veinsyellowishbrown;allhairsonveins darkbrown;fringeofcalypterandalarlobe paleyellow・Legsasinfemaleexceptfor

fOrelegswhichareoftenwl1ollydarkbrown・

Forebasitarsusabout5timesaslongas broadHindbasitarsusslender,about5.0-

5.5timesaslongasbroad・

Abdomenblackishbrown、Basalfringe oflong,darkbrownhairslaterally,rather shortblackhairsdorsolaterally,extendingto distalmarginofabdominalsegmentm・

Tergiteniridesescentpollinose;tergites IV-Ⅸconcolorouspollinoseanterolaterally,

thispollinositybecomesmoreobscureand lessinextenttowardsdistaltergite;tergite Xsmall,subrectangular、Sterniteltrapezoi‐

daltosubtriangular;sternitesm-Vmsubrec‐

tangUlarwithblaCkhairsnearposterior margin・GenitaliaasinFig3・Basimere subrectangular,longerthanwidthinventral view,innersurfaceanddistall/3ofouter surfacesparselysetose・Distimeresubrectan‐

gularinventralview,slightlylongerthan basimere,about2/5aswideasitslong,

innermarginconcavedshallowly,itswidth reducedatbasal2/31engthandbroadened distally;withasingleterminalspineanda short,blunt,innerprOjectionnearbase・

Bodyofventralplatebroad,heavilysclero‐

tized;inventralview,apicalmarginslightly concave,withashort,haired,roundventral lipprojectingposteroventrally;basalarms long,broad,extendinganterolaterally,about aslongasbody;medianscleritelong,broad,

lleavilysclerotized,distallyexpandinginto roundplate、Endoparameralorganheavily sclerotized,with51ongand5shortspines,

basallyexpandingintosubtriangular,wrin‐

kledplate、

UPb4Pa・Length:body2.2-2.6mm,respira- toryorgan3、9-4.7mm・Cephalicapotome ofheadanddorsumofthoraxroughened withnumerous,slightlyrised,roundgraL ulesAntennaoffemalereachingtohind marginofhead;antennaofmalereaching aboutonehalfdistanCetol1indmarginof headCephalicapotomewith3pale,long,

two-branchedtrichomesateachside,twoof themalongantenna,restonelateralto antennalbase;thoraxoneachsidewith5 pale,longtwo-brancheddorsaltrichomes and2ratherlong,simple,lateraltrichomes;

5-7palesetaenearanteriormarginofbase ofrespiratoryorgan.Respiratoryorgan consistingofashortbase,wl1ichgivingrise

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VoL31No、31980 171

bycolorationandreportedasS.(8)sp.

(OnisllicML,1977),thatis,dorsalpartof abdominalsegmentsⅦ-Ⅸisblackishbrown

toblaCkandallheadspotsareindistinct

andofpositivepatterninS.(8)ho7zzcioi,

whileinS.(S、)?"伽ZZic"7'zabdominalseg- mentsⅦ-Ⅸareconcolorouswithsegments

V-Ⅵ,browntopurplishbrownandhead spotsaregeneranydistmctandpostero‐

medianandposterolateralonesofnegative

pattern(Fig.8).Atadultstage,inthe

femaleofS.(S、)ho7zzcioi,asinFig1,small

butwellsclerotizedsteniteⅦispresent;

1engthofanallobeatventralmargin,in lateralview,isshorterthanthatatanterior margin,inventralviewinnermarginofanal

lobeisratherconcavedandposteroinner

angleispointedandweaklysclerotizedln

thefemaleofS.(S、)?MaZZic""z,asinFigd

2,sterniteⅦisnotsclerotized;lengthof

anallobeatventralmargm,inlateralview,

issubequalorlongertllanthatatanterior margin,inventralviewinnermarginiscon‐

vexed,posteroinnerangleisnotpointedand

wellsclerotized・Intl1emaleofS.(8.)AC、‐

cioi,asinFig、3,basimereisonlysparsely setosedwithoutpatchofsetaeatinnerdorsal surface,inventralviewdistimereisreduced

initswidthatbasal2/31engthanddistally

broadenedagain;ventrallipofventralp1ate,

interminalview,roundedandshort・In themaleofS.(8)7"伽ZZ伽川asinFig、4,

basimerehasapatchofdensesetaeatin‐

nerdOrsalsurface;inventralviewdistimere iscurvedinwardsatbasal2/31engtl1and

taperingdistallytoaslenderapex;ventral lipofventralplate,interminalview,conical andstronglyprojectingventrally・Pupaof S(8)homcjoZdiffersfromS.(8.)?"抑ZZic川 inabsenceofspinesonanteriormarginof

tergiteⅥ、

8.(8.)ハo'nciojisalsoalliedtoS.(S、)九6‐

肺siVargas,MartinezandDiazandS(8.)

〃igiVargas,MartinezandDiaz、Thenew speciesisseparablefromtheformerspecies bythefeaturesofgenitaliainadultespecially

inmaledistimerewithanapicalspineand

apicolateralcornersareprojectingposterior‐

ly;inlarvaheadcapsulewhonylightbrown axidabdominalsegmentsVH-Ⅸareblackish

browntoblackincontrasttoanterior

segments,andfromthelatterspeciesbytlle deInvestigaci6nesCientificas“Dr,Isao

Tada,,,ServicioNacionaldeErradicaci6n delaMalaria,CiudaddeGuatemala,Gua‐

temala Reco7qcZs

MzreriaZc工α"zi"CCZ、DepartmentEscuintla3

SanVicentePaCaya:FincaPeiiaB1anca,

11-Ⅳ-1978,s、Ito(299).Panruncito,Rio Jazmines,12-V-1978,s・ItoandTOkazawa (699).ElInjerto,26-V-1978,SItoand Y・Yamagata(999).FincaGuachipilin,

19-Ⅶ-1978,T・Okazawa(19).Smalltribu‐

tarystreamsofupperRiachueloGuachipilin,

r7-Ⅱ-1978,T・OkazawaandEGramajoM.

(61arvae);13-Ⅵ-1978,OOGudielEand

RPichillAR.(l01arvae).Smalltributary streamofQuebradaElAmateinFincaSan FranciscoElAmate,29-Ⅶ-1976,T・Oka‐

zawa,K・MatsuoandOOnishi(51arvae).

SmalltributarystreamsofRioJazmines,

13-Ⅸ-1977,T・OkazawaandELJtlalezO.

(91arvae);21-Ⅳ-1978,TOkazawaandE GramajoM.(l221arvae).Palin:Allstreams

arelocatedinChilar・Smallstributary

streamsofQuebradaE1Rodeo,19-1V-1978, T・OkazawaandEGramajoM.(l01arvae).

SmalltributarystreamsofupPerQuebrada dePajal,4V-1977,T・Okazawa,M、A、

Gome2andOOGudielP.(l461arvae).

Guanagazapa:Smalltributarystreamsof

RiachueloElSilencioinFincaSanRam6n,

24-1-1978,T、OkazawaandS、Ito(91arvae).

DepartmentGuatemala:Smallstreamsin FincaRinc6n,VillaCanales,23-V-1978,T・

Okazawa,Y、YamagataandI・Tanaka(147 larvae).DepartmentSantaRosa:Small tributarystreamsofRioFrioinFincaE1

SilencioPuebloNuevoVifias,21-X1-1977,T、

Okazawa(211arvae).DepartmentChimar‐

tenango:FincaBuenaVista,Acatenango,

27-Ⅱ-1980,T、Okazawa,EAlvarad,(10 larvae).DepartmentSuchitep6quez:Small tributarystreamsofRioNicainFincasLa

ConchitaandSantaMonicalbon6,ChicaCao,

8and9-Ⅸ-1976,0.Onishi,K・Matsuoand TOkazawa(l041arvae),DepartmentSololA:

SmalltributarystreamsofRioNicainFinca

MonteQuina,Atitlan,9-Ⅸ-1976,OOnishi,

K・MatsuoandT・Okazawa(561arvae).

Remarks・Tl1isspeciescloselyresembles

S(8)加伽ZZ柳川andwasfirstlydistin‐

guishedfromS(SL)?"抑ZZfczJ'〃atlarvalstage

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謬鐘霧篝麺風 蕊霧壹墨i電

鍼籍慰燭 ;壽、,需鰯、ii《論

Figs、1-4

1-2,femalegenitalia:1,sI,""Z〃72(8.)ノioγαcioi;2,8.(8.)?,zeZaZZicw'".(a)

ventralviewwithleftovipositorloberemoved;(b)rightlateralviewofanal lobeandcercus;(c)spermatheca、3-4,malegenitalia:3,8.(8.)ACγαczoz;

4,8.(8.)’〃αZZicw7".(a)ventralviewwithleftbasimereanddistimere removed;(b)leftlateralviewofventralplate,medianscleriteandendo‐

parameralorgan;(c)terminal(end)viewofsamestructures;(d)innersurface ofbasimereanddistimere;(e)ventralviewofleftarmofendoparameral

organ

I featuresthatbasitarsusofhindlegisslender

inadultmale,cercusisaboutl/2aswide aslonginfemale,cocoonflattenedand rounded,whileinSk(8.)〃igibasetarsus

ofhindlegsisofspindleforminmale,

cercusisaboutaswideaslong,cocoonis

conlc・

ThisspeciesisnanledforDr・Horacio FigueroaMwhohasbeenstudyingon humanonchocerciasisinGuatemala.

BioZogjcaZ7zoZes、Thelarvaeofthisspecies

arefoundinverysmallstreamsinthe mountainousarea,whicharecalledas“in.

fant,,or``youngstreams,,byDalmat(1955),

andwerecollectedthroughouttheyear・

Thelarvaeattachthemselvestosubmarged

leavesandoftentostonesurfaceofthe streambottom.Adultfemalebitesman・

Asingleindividualwasalsocapturedon

cowmixedwithnumerousS(8.)沈伽"伽"Z

lIl

(7)

VoL31No、31980 173

錘三li)

: i;

3

{iL

湾鐵

S Figs、5-6Adult

5,8'"z"肋"u(S、)hoγzzcioi.(a)-(9)female,(a)maxillarypalpus;

(b)distalpartofcibarium;(c)mandible;(。)maxilla;(e)

antenna;(f)hindleg;(9)clawofhindleg.(h)-(j)male,

(h)Maxillarypalpus;(i)antenna;(j)hindleg、6,8.(8.),"eraノー 此"?".(a)-(d)female,(a)maxillarypalpus;(b)distalpartof cibarium;(c)antenna;(d)hindleg.(e)-(9)male,(e)maxil‐

larypalpus;(f)antenna;(9)hindleg

VOL69,Art、10,P41,1927(female).-

Fairchild,A"".E"Zo7"oZ・ASbc.A'".,VOL 33,No.4,pp712-713,1940(female,

maleandpupa).-Vargas,&u・血鉱.

SbZb`67.E〃と?”.Tmqp.,VOL3,N○.3,

pp、234-236,1942(maleandfemale genitalia).

Sf7""胸"zauj血?〃Hoffmann,A".I)2S2.BiOZ.,

Univ、M6xico,VOL2,pp,207-218,1931 inFincaGuachipilin,SanVicentePacaya,

DepartmentEscuintla,onJulyl9,1978.

SimzU肋、(S伽mJiJm0)metα"伽"O

Benardi

SYm"胸加meZZzZZicz4mBellardi,SaggiodiDit‐

terologiaMessicana,VOL1,p14,1859

(originaldescription,male).-Dyar andShannon,」Fmoc・uSLZVZz’.MMS.,

'Ⅱ

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174

Jap.J・SanitZool

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Figs,7-10Larva

7-8,dorsalandventralviewsofheadcapsule、7,ぶれ""""z(8.)ho7・acioi.

8,s.(8)〃zeZzz雌"',z、9,hypostomialteeth:(a)S、(SWbomcioi;(b)

8.(S・Mz伽恥邸沈.10,apexofmandible:(a)88(8.)ん07.zzcioi;(b)8.

(86)加eZaZZ伽加

(larva,pupaandgenitalrodoffemale).225,1955(larva,pupa,maleandfemale).

SIiクワZ"肋"Z(&〃"吻加)”eZZzZZm`mBellardi; so"itz〃MmCbZZ.,VbL125,pp、220-DBS”P肋〃 p、175,1946(larva).---Dalmat,珈妨一organofpupa). 5tz〃筑助允加.TmAV01.7,N0.3, Vargas,MartinezandDiaz,Reu・ん鉱. 、成伽.Z1mP.,V01.17,p、384,1957 --VargasandDiaz,RCD・血suf・StzZz`67. (femaleandmalegenitalia,resp1ratory

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VoL31No、31980 175

remainderofsegmentsdarkbrown;all segmentscoveredwitlldensefinepalebrown pubescences,interspersedwithpalebrown llairsexceptforscapeandpedicelMandible with24-27serrations,confinedtoinner apicalmargin.Bladeofmaxillawithl9-22 retrorseteethMaxillarypalpusbrownto greyiShbrown;segmentⅢshorterthan segmentⅣ,subequalinwidth;segmentV abouttwiceaslongassegmentm・Sensory vesicleaboutl/3orlessaslongasits segment,widtMengthofvesiclel/2-2/3,

proximallysituated,withroundmouth・

Cibariumwithoutarmatures,medianprox‐

imalspacesomewl1atsquared,dorsolateral armsheavilysclerotized

PronotUmbrownishblackposteriorly,with whitisl1pollinositywhicllshinesiridescently atsomeangleinlight,coveredwitllblack hairs・Scutumblack,coveredwithsl1ort,

recumbent,blackhairs;mediallythree longitudinal,velvetyblackstripesongreyish pollinosegroundmanterodorsalview,but inposterodorsalviewgreyishpollinosestripes onvelvetyblackground,tl1esestripesex‐

tendingfromanteriormargintoprescutellar part;anteriorandlateralmarginwith broadiridescentpollinosityatsomeangle,

lateralpollinositycontinuestoprescutellar part;prescutellumgreyishpollinose,shines iIisamecoloraslateralmargin,covered withsparse,ratherlong,blackl1airs、

Scutellumblackishbrown,faintlygreyish pollinose,witharowoflongblackl1airs・

Postoscutellumconcolorouswithscutellum,

lighterthanscutum,greyishpollinose・

Pleuronbrownishblacktoblack,greyish pollinose;pleuralmembranegreyishbrown,

nakedMesepimeraltuftsmall,ofrather longblackhairs、Katepisternumconcolorous withpleuron,bareWingmembranehya‐

line;veinsbrowntopalebrown,stemvein andbaseofcostawithratherlongblack hairs;baseofradiusbare;R1witharow ofblackspinules,Rswitharowofshort blackhairs;fringeofclyptorandalarlobe palebrown・Basalstemofl1alterdark brown,restofhalteryellowishwhitePre‐

coxalbridgeabsenLCoxa,trochanterand femuroffOrelegbrown,ofmidandhind legsdarkbrown;foretibiabrownwithbasal andapicall/4darkbrown,midandhind

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Figs、11-12戯,""胸"Z(S)Aomcioi

ll,larva:(a)rectalgill;(b)rectal sclerite;(c)antennal2,pupa:(a)

dorsalandventralviews;(b)basal portionofrespiratoryorgan;(c)cocoon,

dorsalview;(d)cocoon,lateralview

11 ’’

11111J

几"zaZe、Generalbodycolordarkbrown toblaCk、Length:body1.9-2.6mm,Wing

1.9-2.3mm・

Headalmostblack,coveredwitllblack llairs・Fronsfaintlygreyishpollinose,with someblackhairsalonglateralmargin,widtll atvertexandantennalbasesubequaLabout l/2aswideaslength,and2/9widthofhead C1ypeusgreyishpollinose,longerthanwidth,

coveredwithsparseblackhairs・Occiput withdenselongblackhairsdorsally・AL tennall-segmented;scape,pediceland basalhalfoffirstflagellomerelightbrown,

witharowofblaCkbristlesatdorsodistal

marginofscapeanddistalmarginofpedicel;

11

1口11

J‐

L'''1

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(10)

176 JapJ、Sanit、Zoo1.

tibiaedarkbrownwithbasalapexoften brown;foretarsuswhollybrownishblack,

midandhindtarsiyellowishbrownbasally anddarlEbrowndistally,forebasitarsus about5timesaslongasbroad,hindbasitar‐

susparallel-sided,about6timesaslongas broad;calcipalaandpedisculcuswellde‐

veloped;clawslenderwithasmalltooth

nearbase・

AbdominalsegementsⅡ,Ⅵ-Ⅸbrownto barkbrowndorsally,segmentsm-Vvelvety brownishblackdorsally,allsegmentsgreyish pollinoseventrally;basalfringeyellowish brown;tergiteⅡiridescentpollinose,about 3timesaswideaStergiteⅢ;tergitesm-Ⅳ reduced,withsparseblackhairs;tergites V-Ⅸlustrouswithbrownishblackhairs;

tergiteXsmall,subsquare、SterniteIweak‐

lysclerotizedlaterally;sterniteⅧwide,

lleavilysclerotized、GenitaliaasinFig2・

Anallobe,inlateralview,subtriangular,

lengthatventralmarginsubequalorlonger thanthatatanterodorsalmarginwhichis somewl1atconcaved,posteroventrallyround‐

ed,prOjectingbelowlevelofcercus,dorsally tapering,reachingtodoralmarginofcercus;

inventralviewsubtriangular,innermargin ratherconvex,posteroinneranglewellsclero‐

tizedbutnotpointed,spacebetweenlobes narrow・Cercussubtriangular,denselycov‐

eredwithlightfinesetae,innermargin weaklyandnarrowlysclerotized、Stemof genitalforMongandslender,heavilysclero‐

tized,armsmoderatelybroad,distallyheavily sclerotized・Spermathecaovoidtosubspher‐

icaLslightlylongerthanwidth,heavily

pigmented,withasmallclearcirculararea atjunctionwithspermathecalduct・

Mz肱Generalbodycolordarkbrownto black・Length:body1.9-2.4mm,win92.0-

2.2mm・

Fronsbrownishblack,greyishpollinose・

Clypeusblackishbrown,slightlylighterthan frons,greyishpollinose,coveredwithblack‐

ishbrownhairs・Posteriormarginofeyes witharowoflongerect,blackhairs、

Uppereyefacetsinaboutl6rows・Occiput coveredwithblackhairslaterally.Antenna darkbrown,scape,pedicelandbasalportion offirstflagellomereyellowishbrown,dorso‐

distalmarginofscapeanddistalmarginof pedicelwitharowofblackbristles,first

flagellomereL5-2、Oaslongaspedicel;all segmentscoveredwithfine,brownpubes‐

cences,intersparsedwithpaleyellowish brownhairsexceptscapeandpedicel・

MaxillarypalpusbrownwithbroWnishblack hairs;segmentⅢshorterandslightlywider thansegmentⅣ;segmentVabouttwice aslongassegmentⅢ、Sensoryvesicleabout l/3-1/51engthofitssegment・

Pronotumblackishbrown,withdark brownhairs,whichareyellowinlight・

Scutumvelvetybrownishblack,covered withshorthairsconcolorouswiththoseon pronotum;whitiShpollinosebandsextending dorsomediallyfromanterolateralmargin,

betweenbandsV-shapedgreyishpollinosity, asawholeappearinginvertedW-shapedin frontview;lateralmarginwitl1wide,

whitishpollinosity,whichcontinuestobroad,

greyishpollinoseprescutellarpart;allpol‐

linositiesiridescentatsomeangleinlight;

prescutellumwithrat]herlong,blackhairs、

Scutellumdarkbrown,witharowoflong,

erect,blackishbrownhairs・Postoscutellum darkbrown,greyishpollinose・Pleuron darkbrown,lighterthanscutum,densely yellowishgreypollinose;mesepimeraltuft smallandshort,bfblackhairs・Wing membranehyaline;veinsbrowntopale yellowishbrown,allhairsonveinsdark brown;fringeofcalypterandalarlobepale brown、LegsasinfemalaForebasitarsus about5timesaslongasbroad.Hind basitarsusslender,about4.8-5.4timesas longaswidth

AMomenblackishbrown・Basalfringeof longbrownhairslaterally,extendingto distalmarginofabdominalsegmentⅢ,of rathershortblackhairsdorsolaterally・

Tergiteniridescentpollinose;tergitesⅣ-

ⅨlateranyconcolorouswithtergiteⅡ,pol‐

linositylessextenttowarddistalsegment;

tergiteXsubrectangular・Sterniteltrap ezoidal;sternitesm-Vmsubrectangularwith blackhairsnearposteriormargin、Genitalia asinFig4・Basimeresubequalinwidth andlength,withaninnerdorsalpatchof densesetae,remainderpartofinnersurface anddistall/2ofoutersurfacesparsely

setose・Distimerecurvedinwardsatbasal

2/31ength,taperingdistallytoaslender

apex,longerthanbasimere,about2/5wide

iii

礼Hw皿乢huB回脾円旧Ⅳ雁Ph

(11)

I I

Vol、31No.31980 177

asitslong;withasingleterminalspmeand ashortbluntinnerprojectionnearbase・

Bodyofventralplatebroad,heavilysclero‐

tized;inventralview,apicalmargin concave,cOnicalventralliphairedexcept forapex,stronglyprojectingventrally;basal armsbroad,long,extendinganteriorly,

slightlylongerthanbody;mediansclerite long,elliptic,moderatelysclerotizedmedio‐

longitudinally・Endoparameralorgansclero‐

tized,with5-61ongspines;basallyexpanding intosubtriangularwrinkledplate

PZ力α・Length:body2.1-2.3mm,respira- toryorgan3、4-4.5mm・Cephalicapotome ofheadanddorsumofthoraxroughened withnumerous,slightlyrised,roundgran‐

ules・Antennaoffemalereacl1ingtohinCl marginofhead;antennaofmalereaching aboutonel1alfdistancetohindmarginof headCephalicapotomewith3pale,long,

two-branchedtrichomesateachside,twoof themalongantennaandrestonelateralto antennalbase;thoraxwith5pale,long,

two-branchedofsometimesthree-brancheCl dorsaltrichomesand2ratherlong,simple lateraltricllomes;3-5palesetaenearante‐

riormarginofbaseofrespiratoryorgan・

Respiratoryorganconsistingofshortbase whichgivingrisetoaventralpairof filamentswithratherlongpetioleandshort dorsalboughbearingtwopairsoffilaments;

ventralpairsplittingalmosthorizontally;

dorsalmostpairwithshortpetiole;middle pairwitl1ratl1erlongpetiole;allsixfilaments brown,long,slender,slightlytapering。is‐

tally.、Abdominaltergitelwitllalongseta laterallyoneachside;tergiteⅡwith6short setaeoneachside,4ofthemnearposterior margin,2anteriortoouteroneof4;tergites

Ⅲ-Ⅳeachwith41argeanteriorlydirected hooksnearposteriormarginandashortseta anteriortoouterhookoneachLside;tergite

Ⅵwith3shortposteriorlydirectedspines nearanteriormarginoneachside;tergites

Ⅶ-1meachwitharowofshortirregularly sized,posteriorlydirectedspinesnearanterior margin,rowontergiteⅦconsistingofabout 22spines,ontergiteⅧofaboutl5spines;

tergiteⅨwithabout7anteriorlydirected,

irregularlysized,shortspines;tergitesm-

Ⅷwithfine,granule-1ikespineslaterally,

thesearegroupedandlinked,formingmany

spine-combs,sometimesabsentontergites m-V、SterniteⅣwithanoutersimple anteriorlydirectedl1ookandaninnerseta towardeachside;SterniteVwith2fur‐

cated,anteriorlydirectedhooksnearhind marginoneachside,oftenouteronesimple;

sternitesV-Ⅶeachwithanoutersimple andaninnerfructed,anteriorlydirected hooksnearhindmarginoneachside;ster‐

nitesm-Ⅷwithfinegranule-lilEespinesason tergites、Caudalspinesshort,moderately sclerotized・Cocoonpocket-shaped,flattened,

roundedindorsalview,ratherloosely woven;anteriormarginslightlythickened

Lcz〃a、Lengtl14.8-5.6mm、Headcapsule (Fig.8)yellowishbrowntopalebrown;

cephalicapotomeovallydarkbrownme‐

dially,thispigmentationcontinuestodarlK brownposteriormargin;anteriormargin darkbrown;posteromedianandposterolat‐

eralspotsofnegativepattern,brownto palebrown;lateralsideofheaddarkbrown withposteriorspotsofnegativepattem,

anteriorlyyellowishbrown,eyespotmoderate size,surroundeClbycleararea;ventralside qfheadcapsuleyellowishbrown,areaalong postgenalcleftdarkbrown・Cervicalscle‐

ritessmall,brown,isolated,moderately sclerotized、Antennadistinctlylongerthan stalkofcephalicfan;proportionofsegments

I-Ⅳ13:12:11:1;segmentlbrown,seg-

mentⅡpalebrownwithmanytransverse microstriations;segmentmpalebrown・

Cephalicfanwith35-40rays(av、36).

Hypostomiumwith9anteriorteeth;median andcornerteethsubequalinheight;in‐

tjermedialteethsubequalinheig1,t;eacl1 lateralmarginwithtwolateralteethand 3-61ateralserrations;4-5hypOstomialsetae subparalleltolateralmarginofhypostomium・

Postgenalbridge2/31ongasdepthofpost‐

genalcleftandaslongasl1ypostomium・

Postgenalcleftratherlong,slightlypointed apically・Mandibularserrationoftwodis‐

tinct,triangularteeth,basaltoothalways smallerthandistalone・Maxillarypalpus2、2 -2.5timesaslongaswidtllatbase・Lateral plateofprolegsubrectangular;distalmargin witharowofbrownbristles,3-4bristles aregroupedandattachedbasally・Abdom‐

inalsegmentsl-Ⅳeachwitllbrownto darkbrownband,segmentsV-Ⅸbrownto

-■い■ⅡⅡⅡⅡⅢⅡrⅡ川邨I‐Ⅱ□T似!届卯M1肢h人似r□Ⅱ」w川口胆ⅡⅢⅡⅢⅡ■iPlⅡⅡⅡ10--1----

llil

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ゴョsalIv_Access2 】111【】SE【1 IVl【】IUY【:訂、【 bl(]

3-Ⅸ-1976.0.C DkazB

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ouebradaLoslav2

2,.28-XI ̄1976.T・C ヒエlロー〃Ⅱr]

_「【】:副n【

I-1L 1-1978 】UID別[ 111【】 】111。al子

EIelC oSacaDulas、z6-XI-19 Cl388.4旱甲 弧I【Ll

atanabe(/larvae).DF DfOuebradaElBarretaL28-Ⅶ-1976

jaiaVeraDaz2Riの DkazawaOOnishianC

oLlO-XH-lg

DDerRic ユ11LIlIDLr gLl4■』、Hr1■-Vに

3-V11-19760.C )kaz30vf

gLCKNOWLFp BDuDaeanc

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DDortstoourworktoD = ̄【1【

iL呂U⑩rf

J--197F DknznWa(10 lじ゛u【】IJErril

早早lRic 」ロ巳T【

Dtor OInZleC

9-Ⅶ-1976.0_(] )kaza,,Pmr

、、OchoaA-DeD2 OdeOncocercc DOL41arvae・lDuDaeandl8)_C

JL1aclona1ueLdrraqlcac10noela」v1円 ill【

Drn証【 COnT3

1-lb 〔)kazawaand

」BTH

DIVl_(4(] VⅡ=LDI】。副T】【

aboratorv-Ur・lsaoTadaフフforcollectinp

BG Also DL

976.0.C DIlVleの

lJrr

atsuo(b61arvae・YDuDaeandl81\ 。’【I【

= ̄lllHLIlr【】 【Ⅱ、【打

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【)k月冗az anoval6-V-19

Ouebrad2 eoandOuebrad2 lLZZ-I)

ゴIHIIUr jellaTr 359):JSaJ2eJ2rZoaiDitZeγoZogip

976.T・OkazawaO-C 4(l0rlnc

arvaa3DuDaeand2881旱)_C DB 〕lackflies(Di℃

」エIIlno Lr 皿【

〕urLzo・z9-VU-1976-O_(〕 JISCエoncnm rJJf,

〔)kazawaanC iLSOIHT牙

1K 〕、(19

〕uDaeand4887早早lRioSB 】I矛

Drthム D-wmEedfliesofthefz

ユⅡⅡIrrl2nLI【DTI 】IF

Elaef2γ℃

ll-l976-T BLO-C

。。G、B・(1940):Notesc Ⅱ列 aeand3886早早LDG

liiiilll

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aCanales2R化 DC_ム )1-7W

DaderqZb-Ⅶ

JDer【 」&【 L地

(13)

VoL31No、31980 179

newpotentialintermediatehostsofhuman onchocerciasismGuatemala.A"z・JbT?”、

MbcZ.Hy9.,1(5):848-851.

Hoffman,CO(1931):Lossim61idosdela regi6nonchocercosadeChiapas・Segundaparte Losestadoslarvales.A"・血sZ.BfoZ.,U"iu.

〃どjr.,2:207-218.

Lewis,,.J・andRIMnezdeA1decoa(1962):

Simuliidaeandtheirrelationtohumanon‐

chocerciasisinnorthemVenezuela・Bz`ZZ・WZa HZzhO799.,27:449-464.

Onishi,0.,T・OkazawaandJ・OOchoaA.(1977):

GJCRCPO-MZWiSAPR6Poが,No.2,pp、1-8,

Guatemala-JapanCooperationResearchand ControlProgramofOnchocerciasis,Malaria ErradicationNationalServiceandAdjointed Programs,Guatemala・

Vargas,L、(1942):Notassobrelaterminaliade algunossimdlidosdeM6xico、Reu.〃3t.Sα‐

ん61-.,旅”Z.T”・Mam0.,3(3):229-249.

Vargas,L、andADiazNAjera(1957):Simlilidos mexicanos・Reu.I)z肱StzZ"6γ、、'九γ'"・Tm'・

MEzico.,17:143-339.

Vargas,L,A・MartinezandA・DiazNAjera

(1946):SimtllidosdeM6xico・Reu、1ケzsr・1M"67..

助允γ、、TmP・Mar/C0.,7:101-192.

摘要

Guatemala産SY"z"Z"'〃(SZ"z"胸"z)

Latreille属の1新種の記載と SL(且)?72伽/此"ブノzBellardi

の再記載

中米グァテマラ共和国のオンコセルカ症流行地ES‐

cuintla県SanVicentePacaya郡およびPalm郡か ら,SZ"z"胸"z⑪、"Z〃72)Latreille属のブユ,1新種 を記載した.この種は人吸血種であり,中南米でオンコセ ルカ症媒介種の一つと考えられている,S・(S、),'zezaz‐

Z加加Bellardiに類似する.しかし雌の第7腹板がキ チン化する,雄の把握器はほぼ長方形で先端は細主らな い,幼虫頭部は黄褐色で額斑はきわめて薄い等の点で,

S・(S、)mezaZJic""zから区別できる.明確な同定がで きるよう,あわせて8.(8.),脚aZZic""zの再記載も行

った.

参照

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