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Orange ladybird Halyzia 16-guttata in Hyndland PDF

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Preview Orange ladybird Halyzia 16-guttata in Hyndland

platypTh.yllos corTd.ata eurTo.xp.aea P(onrowme’Cosmummomne.rSwiinftsGl’)aAspguoswabpeugsinasrriwvhe.enMyswififrtsst Glasgow 134 1 225 sightingsthisyear(2001)asusualwerefromthe WestEnd roofgardenofourHyndlandflat(NS560675).I Outwith 6 - 2 seethemclearlysilhouettedagainstthedusksky Glasgow overGartnavel chimneytower, Bingham’s Pond Survivors 13 1 5 taondacgtreaesneadacroenavsentoieintstsomuutsht.eTrhipsoilnotcaftoirontahpepmeartso Tanhdestaubrlveiviosrass(usememdalirnygsofwhthiechnuhmabveersliovfedsetehdrloiungghs g3a0t0h0ermeinacohrdeevretnoinmgierboe-fsolreeepfloynintgheupwitnogpweirthhaopust atleastonewintersincegermination)foundbyor collisions and heading into any wind to avoid rtheeproerftoerdeteoxtuesndisntShceotrleacnodrdsinob2t0a0i1n.edTheiaschreypeoarrt d1r9i8f0t;inBgltaocokfmaarnf2r0o0m1)t.heWirestwaorntidnegrphoionwtt(hBeryomjhuadlgle since1997. thedirectionofwindwhenaloftinthedarkwithout Acknowledgements referencepointsduringnightwhenitisnotalways NS.ocRi.etGyriastn,dMM..HM.aHtathneswesnoafndtheP.MeMta.cpOhffeircseo.nofthe Tclheeayrannudmubnecrleodude3d.onMay11th(3dayslaterthan Reference lastyear’sarrival,alsoof3).Thoselastseenalso Gray,R.K.S.&Grist.N.R.(2001).NaturalRegeneration numbered3onAugust20th(2onAug.182000)- ofLimes(Tiliaspp.)inScotland.TheGlasgowNaturalist theirdeparturesignallingtheendofsummer.Their 23(6),19-21. numbersroseto22bytheendofMaywith16the averagemaximuminJuly-August.Thesetotals OGRlAaNsgGoEwNLatAurDaYliBstI.R2D00H2a.lVyozlia241.6-Pgaurttta1t.a94IN wweerreesseoemnewinhaJutlyf.ewMearxtihmaunmlasctouynetasriwnheeanrli2e4rytoea3r0s HYNDLAND were25(‘94),28(‘95),20(‘96-97),18(‘98),20+ NormanR.Grist (‘99). 5AHyndlandCourt,6ASydenhamRoad,Glasgow It is always a challenge to count these rapidly G129NR movingbirdsabouthalfakilometerawayasthey The short note in the last Glasgow Naturalist wheelindividuallyandingroups.Mostflyinloose (PutterandPutter2001)drewmyattentiontothe pairsandshowupblackandclearagainstthebright interest ofmy own sighting ofa single orange dusksky,becomingalmostinvisiblewhentheyturn ladybirdonMay22, 1999.Inoticedthisunusual head-onortail-ontotheobserver,toreappearas ladybirdinourgarden,onaroseleafIthink,one they bank side-on. Patient scrutiny with the sunnyafternoon,collectedandphotographeditand binoculars for several minutes can eventually releaseditnextmorning. Thephotographswere achieve a reasonably steady count, avoiding showntoE.G.Hancock,morerecentlytoRichard double-countingasfaraspossibleandconfirmed WeddleandRichardSutcliffe,andtherecordwith by consistent counts over several consecutive photographicevidencewasdulyenteredasthefirst evenings. inGlasgowforthisspeciesinGlasgowBiological Thenumbersinearlyweeksaremodest,around8 Records. Thepossibleassociationofthespecies to 12,increasingtoroughlydoubleinJuly,then withsycamoreswasmentionedbyPutterandPutter fallinginAugustto aboutthestartingnumbers. (2001),andthereisonematuresycamoreinthe Perhapsthisrepresentstheadditionoftheyoung gardenabout12metersfromwhereIfoundit.The birdsoftheyearthatinAugustflybacktoAfrica orange ladybird is primarily a mildew feeder unaccompanied.Thisleavestheirparentsfreeof (Majerus1994),butaphidsandhoneydewarelisted responsibilitytoenjoysomeremainingweekshere assecondaryfoods.Mosttreesinoururbangarden ontheirownbeforetheytooreturntoAfricato arecommonlimes(Tiliaxeuropaea)whichusually escape our winter. That the youngsters are generate much honeydew and black mould on geneticallyprogrammedtomigrateontimetothe vegetationbelow, and did so in1999. Are these rightplace withoutparental guidance is one of handsome ladybirds increasing in this northern thoseamazingthings.Anotheristhespeedwith latitude? which parental mating and egg laying, andthe References hatching,fledgingandachievementofflightbythe Putter,S.&Putter,K.(2001).OrangeLadybirdHalyzia youngstersarecompletedinthefewweeksofour 16-guttata(L.)inDumbarton.TheGlasgowNaturalist23 midsummer-atributetothequantityandqualityof pt.6,120. our ‘aerial plankton’, mainly invertebrates Majems,M.(1994).Ladybirds.HarperCollins,London. windbomeoverthecity. GlasgowSNaUtuMraMliEstR.T2I00M2.EVSolWI24F.TPSart1.94-95 CSlwiafrtesD(aSrcloetsltaonnd,)’,Cohoarsdindartaowrnoaftte‘nCtoinocnertno tfhoer 5AHyndlandCouNrot,rGm61aA2nS9Ry.NdeRGnrihsatmRoad,Glasgow ptdahvroaaotinblolmatebymlteshsrioyonfswtmuemormusbatcatnihocfslwiotigbhfhsettesocrinvwtaiytt.thihiMosnfypserwooaebwnrldnenmeros,ebtcsbioeunrrtgdvsapItlhimaoocapneyess 94

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