On Agonum (Agonum) jankowskii LAFER (Coleoptera, Carabidae)

5 Pages·1999·5.1 MB·Polish

by  Morita, S

Elyt1-a,「okyo,27(2):599-603,November l3,1999
On gOmm(4go m)Ja f LAFER
ows
(Coleoptera,Carabidae)
SeijiMORITA
Higashi-gotanda5-19-7,Shinagawa-ku,Tokyo,141-0022Japan
Abstract Asmallagoninecarabidbeetle,Agontm1(Ago,!urn)jankou,ski1LAFERis
redescribedfromSakhalinandJapan,andisnewlyaddedtothecarabidfaunaofJapan.
TherearetwoundeterminedspecimensofasinglespeciesofthegenusAgonum
inmyco11ection.0neofthemisamalefromSakhalinandtheotherisafemalefrom
theSarobetsuMoorofHokkaido,NorthJapan.Earlyinthisyear,Dr.G.Sh.LAFERhad
anopportunitytovisittheNaturalHistoryMuseumandInstitute,Chiba,Japan,andI
wasabletomeethimatChibaandsubmittedmyspecimenstohimthroughthecour-
tesyofDr.SAIToof themuseum.Althoughhedidnothaveenough timetoclosely
studythegenitalorgan,themalespecimenofmycollectionwasdeterminedbyhimas
AgonumJankowskii,whichhadbeenbrieflydescribedbyhimself fromthePrimorskij
Territory inthe“KeytotheInsectsofRussianFarEast”. Inthispaper,Iwillshowthe
malegenitalorganbasedonasinglemalefromSakhalin,andrecordthisspecies for
thefirsttimefromJapan.
The abbreviations used herein areas follows: HW-greatest width of head;
PW -greatestwidthofpronotum;PL- lengthofpronotum,measuredalongthemid-
line; PA -widthofpronota1apex;PB-widthofpronota1base, measuredbetween
postangular setae; EW-greatest width of elytra; EL-greatest length of elytra;
TL- lengthofmetatarsus;PTL -1engthofsegment2ofprotarsus,measuredalongthe
mid-line;PTW-greatestwidthofsegment2ofprotarsus.
Beforegoingfurther, IwishtoexpressmydeepgratitudetoDr.Shun-lobiUENo
oftheNationalScienceMuseum(Nat.Hist),Tokyo, forcriticallyreadingtheoriginal
manuscriptofthispaper.
ThanksarealsoduetoDr.GermanSh.LAFERofVladivostokfordeterminingthis
speciesandforhiskindsupport.MythanksarealsoduetoMr.Hideaki MATSUMOTO
forsupplyingmewiththespecimensusedinthisstudyandtoDr.AkikoSAITo forher
kindhelp.
600 SejjiMORITA
Agonum(Agonum)J'ankowskiiLAFER,1992
[Japanesename:Sarobetsu-kurohirata-gomimushi]
(Figs.1-8)
Agonum(Agonum)/ankowskiiLAFER,1992,Opredelite1'NasekomykhDal'negoVostokaSSSRvShesti
Tomakh,3(2):616,fig 290-1.
Length:7.4-7.6mm(fromapicalmarginofciypeustoapicesofelytra).
Bodyblack,not iridescent;mouthpartsandappendagesslightlylighterthandor-
sum;basesoffemorabrown.
Headmoderatelyconvex;frontal furrowsshort,veryshallowanddivergentposte-
riad; lateralgroovesshallowandclosetoeyes;anteriorsupraorbitalporessituatedat
themid-eyeleveloralittlebeforethatlevel;posteriorsupraorbitalporessituatedalit-
tlebehindthepost-eyelevelorat thatlevel,andweakerthantheanteriorones;eyes
moderatelyconvex;PW/HW l73in 1.66 in ;genaealittleconvexandalittle
,
shorter than eyes; ment加l 1tooth simpleandpointedat apex; neck wide; apex of
---' 1.:1,'・:111' - 1l'_,1'1111111・1
' 1-1 ,,1,,J l ・1 -ll・1
-
.-
:
一・
Fig. 1. Agonum(Agonum)J'ankowskiiLAFERfromSakhalin
OnAgonumJankowskiiLAFER 601
labrumstraightorslightlyemarginate;mandiblesshortandstronglyhookedatapices;
microsculpturecomposedofisodiametricmeshes;antennalsegmentIwithalongseta,
segmentIIwithalongsetaandashortseta,andsegmentIIIwithseverallongsetaeon
eachside; relativelengthsofantennalsegmentsasfollows: - I:II:III:IV:V:VI:XI
-1:0.5:0.9:1.03:0.94:0.90: 1.03 in 1:0.52:1.03:1.10:1.05:1.05:1.16in
, .
Pronotumwide,convexandwidestataboutmiddleoralittlebeforethemiddle;
PW/PL136inc,1.32in !;PW/PA t60in c,1.59in9;PW/PB133in c,1.39in9;
PA/PB 0.83 in 0.87 in ;apexwidelyemarginate,andborderedthroughout;sides
,
stronglyarcuatethroughout;re?exedsidesverynarrownearapicalanglesandbecom-
ingwiderposteriadandmergingintobasal foveaoneachside;baseweaklyarcuate;
apical anglesslightlyproducedandwidely rounded; anterior transverse impression
vanishedatthesidesandfineatthemedianpart;anteriormarginalsetasituatedatthe
widest part or alittlebeforethat level;median linefine, reachingneither apexnor
base;basal foveaeshallow,wideandsmooth;posteriortransverseimpressionshallow;
hindangleswidely rounded;microsculpturecomposedoffinetransversemeshesor
wideones.
Elytrarathershort,convexanddilatedtowardsthewidestpartwhichisatabout
middle;basal part wide;shoulders widely rounded;EW/PW 135 in 1.33 in ;
,
EL/EW 143 in 1.44 in ; epipleurongraduallynarrowed towardsapex; apices
,
roundedoneachsideandslightlyseparatedfromeachother;basalborderstronglyar-
cuate;basalporesituatedatproximalpartofstria1;striaerathershallowthroughout,
smoothorveryweaklycrenulateandbecomingobsoletetowardsapices;scutellarstri-
ctosituatedonintervalIandjoiningbasalborder;intervalsslightlyconvex;in inter-
,
val IIIwith3pores,firstporesituatedaf t/5frombase,secondoneataboutmiddle,
andthirdoneat4/5frombase,thefirstandthesecondporesjoiningstriaIIIorcloseto
striaIII,thethirdonejoiningstriaIIorclosetostriaII;in interval IIIwith4pores,
,
firstporeaf t/4,secondoneat2/5,thirdoneat3/5-7/10, fourthoneat4/5frombase,
respectively,andthefirstandthesecondporesclosetostriaIII,thethirdonesoninter-
valII,thefourthoneonintervalIIIorclosetostriaII;marginalseriescomposedof15
poresin 16poresin ;microsculptureconsistingoffinetransversemeshes.
,
Ventralsideimpunctate,butthestemitesbear longitudinalandobliquewrinkles;
in ,analsternitewith4setaewhichareonatransverseline.
Legsslender;PTW/PTL1.00in 0.82in ; in ,segmentIofeachprotarsus
,
hardlybisulcateondorsum; in , twoor threeproximal segmentsofeachprotarsus
withshallow innerandoutersulci; fourproximalsegmentsofmeso-andmetatarsi
withinnerandoutersulciondorsalside;clawsegmentsofmeso-andmetatarsieach
withveryweakmediansulcusondorsalsideandseveralsetaeonventralside;TL/HW
1.29 in 1.23 in ;metatrochantershortandwithroundedapex;metafemoraeach
,
with4setaein and3setaein inventralview.
Genitalsegmentwithanelongatehandle;aedeaguselongate;basalpartnarrow,
andwithanelongatesagittalaileron;rightandleftwallsandventralsidecoveredwith
manystrongwrinkles,butthebasalpartandapicallobearesmooth;viewedlaterally,
602 SellliMORITA
Figs.2-8. Agonum(Agomtm)/ankowskiiLAFERfromSakhalin. - 2,Genitalsegment,dorsalview;3,
aedeagus,leftlateralview;4,apicalpartofaedeagus,dorsalview;5,apicalpartofaedeagus,ventral
view;6,rightparamere,leftlateralview;7,leftparamere,leftlateralview;8,1eftparamere,dorsal
view. (Scale: lmmfor2;0.5mmfor3-8.)
ventralsurfacestronglyproducedandformingaridge;apicallobeproducedwithapex
roundedinlateral view;viewedventrally,apexnarrowly roundedandsmooth; right
paramereelongateandwithwidelyroundedapex;leftparamerebroadandwithlarge
twistedbasalpart.
Specimense:x:amined. 1?, 16-VI-1990, Korsakov,Sakhalin; 1?, 9-VIII-1991,
Wakkasakanai,Toyotomi-cho,Hokkaido,H.MATSUMOTO&T.ARAKl leg.
Range. Russia(PrimorskiJTerritory,Sakhalin);Japan(Hokkaido).
Notes. AccordingtoDr.LAFER,thetype1ocalityofthisspeciesisthemouthof
theRiv.Suyfun(=Riv.Razdolnaya)about26kmNWofVladivostok.Thetypespeci-
menswereobtainedattheleftbankoftheriver.
ThisspeciesiscloselyalliedtoAgonum(Agonum)sculptipes(BATES)(l883,p.
257),but isdistinguished fromitbythefollowingpoints:1)smallerbody,2)smaller
eyes,3) lessstronglyarcuatesidesofpronotum, 4)widerbasal part ofelytra, 5) ro-
busterlegs,6)PTW/PTL1.00in3,0.82in9,7)TL/HW129in c,1.23in9,8)han-
dleofgenitalsegment elongate, and9)peculiar shapeofmalegenital organ. [InA.
(A)sculptipes(BATES) fromMemanbetsuandUtonaiko,Hokkaido,NorthJapan,body
length: 8.8-10.2mm;PW/Pi t22-1.29 (M I25) in 5 , 1.21-1.29 (M I25) in
5 ; EL/EW 148-1.56 (M I 52) in 5 , 1.44-1.47 (M I 46) in 5 ; TL/HW
OnAgom//1リankolvskiiLAFER 603
1.48-1.55(M I51) in4 , 1.40-1.46(M I 44) in 5 ;PTW/PTL 0.63-0.70(M
0.66) ing ,0.56-0.71(M0.74) in7 ;handleofgenitalsegmentwideanddilated
apically.]
要 約
森田誠司:サロベツクロヒラタゴミムシについて. - ロシア沿海洲より記載された小型
のヒラタゴミムシ, Agonu,It(?igotutm)Jankou,skiiLAFER,1992をサハリン産の雄および北海道サ
ロベツ原野産の雌の標本を基に再記載した.
References
BATES,H.W.,1883. SupplementtothegeodephagousColeopteraofJapan,chiefyfromtheCollectionof
Mr.GeorgeLEWIS,madeduringhissecondvisit,fromFebruary,1880,toSeptember,1881. T1'a'!S.
ent.Soc.London,1883:205-290,pl.l3.
HABU, A., l978. Carabidae:Platynini (Insecta:Coleoptera). FaunaJaponica.viii十447pp., 36PIS.
KeigakuPub1.,Tokyo.
LAFER,G.sh.,1gg2. PodolriadAdephaga.InLER,])A.(ed),0predelite1'NasekomykhDal''lege1/bStOka
SSSRvShesti「o,nakh,3(2):602-621.(InRussian)
_ ,A.NNILSSON&S.K.KHoLIN,1997. AdditionalrecordsandnewsynonymsofCCi indelidaeand
carabidae(Coleoptera)fromtheIslandofSakhalinintheRussianFarEast. Ent. fetnn.,8:13-17.
Elvl;・a,Totkyo,27(2):603-604,November13,1999
NotesontheBembidiinae(Carabidae)ofJapan
XII. ARecordofTatchy1ophaovata(MOTSCHULSKY)
SeijiMORITA
Hjgashj-gotanda5-19-7,Shinagawa-ku,Tokyo,141-0022Japan
'nachy1,ophaovata(MoTscHULsKY,1851)isaremarkabletachyinecarabidbeetleCha「aCte一「
lzedaboveallbythetricoloredantennaeandpeculiarshapeofthehindan9lesofP「onOtumand
oftheelytra1shoulders.AhabitusdrawingofthisspecieswasshownbyANDREWES(l935)in
oneofhjsgreatworks,“TheFaunaofBritishIndia,includingCeylonandBurma,Ca「abidae
VOl.II”.
BRUNEAUDEMIRE(l966)reportedtheuniquestructureoftheAf「leanSpeciesof naChy一