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
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)andinnortllernSoutllAmerica(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-MnVHAPR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
:
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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
toblaCkandallheadspotsareindistinctandofpositivepatterninS.(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
initswidthatbasal2/31engthanddistallybroadenedagain;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
browntoblackincontrasttoanteriorsegments,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・SmallstributarystreamsofQuebradaE1Rodeo,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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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.)〃igibasetarsusofhindlegsisofspindleforminmale,
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"ZlIl
VoL31No、31980 173
錘三li)
髄
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垣
a 3
5
驍
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fS 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
M
I
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.,
!
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174
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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
'1111MW
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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
il 1A〃Wpl,iMii1'llI1Iil
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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
Ⅱ 」
11 ’’
11111J
Ⅱ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
Jl1il
ll
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1ll1 J|’
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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;
灘
iii
!
礼Hw皿乢huB回脾円旧Ⅳ雁Ph
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
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arvaa3DuDaeand2881旱)_C DB 〕lackflies(Di℃
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ll-l976-T BLO-C
。。G、B・(1940):Notesc Ⅱ列 aeand3886早早LDG
liiiilll
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:
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.