Metaleptobasis lillianae spec. nov. from Bolivia (Zygoptera: Coenagrionidae)

2004·0.81 MB·English

by  Daigle, J J

Odonatologica33(2): 195-198 June I,2004
Metaleptobasislillianaespec.nov. fromBolivia
(Zygoptera:Coenagrionidae)
J.J.Daigle
2067 LittleRiverLane,Tallahassee,Florida32311,UnitedStates
e-mail:[email protected]
ReceivedApril29,2003/ ReviewedandAcceptedJune 15,2003
Thenewsp.isdescribedandillustrated.Holotype<3 andallotype5 (incopula):Boliv-
ia,CochabambaDepartment,Chapareprov.,lake 2.5kmWofVillaTunarigate onHwy4,
12-XI-2001;both depositedin U.A.G.R.M.inSantaCruz, Bolivia, c3c? arecharacterized
by theknobbed shapedparaprocts,andthehomochromatic 9 9bytheirblack ovipositor.
Both canbedistinguishedfrom other congenericspp.bytheirdark,almostblackterminal
abdominal segments.
INTRODUCTION
Previously, theywere 18knownspeciesofMetaleptobasis (DAIGLE,2003),allne-
otropical. However,IincludedMetaleptobasis rosea (Selys, 1877)[[Leptobasis] inthis
genus,butthisis nowknownasInpabasis rosea (Selys, 1877)[Leptobasis] (GARRI-
SON, 2002). Thisreducedtheknownnumberofspecies to 17. TheadditionofM. lil-
lianae,whichis mostsimilartoM. manicaria(WILLIAMSON,1915)fromnorthern
SouthAmerica, increasesthetotalto 18species. Thegenusisrecordedforthefirsttime
fromBolivia.Thelarvaisunknown.
DESCRIPTION
METALEPTOBASISLILLIANAE SP. NOV.
Figures1-5
Material. —Holotype<3 andallotype9(incopula):BOLIVIA,Cochabamba Department,Chapare
prov.,lake 2.5kmWofVillaTunari gateonHwy4,12-XI-2001,JerreU J,Daigleleg.(JJD); —Paratypes
(186,1 9):samedata asholotype,1<3,1 9(JJD),1<5JimT.Johnsonleg.(JTJ)and4(3 Ken J.Tennessen
leg.(KJT);samedataasholotypebutll-XI-2001,12<3(JJD). —Theholotype,allotype,andaparatypeare
depositedintheUniversidadAutonoma“GabrielReneMoreno”(U.A.G.R.M.)inSantaCruz, Bolivia.The
196 J.J.Daigle
remainingparatypesareinthecollectionsofJferrellJ.Daigle,KenJ.Tennessen,JimJohnson,RosserW.Gar-
rison,theFloridaStateCollection ofArthopods(FSCA),theInternational OdonataResearchInstitute(IORI)
inGainesville,Florida,andtheNationalMuseumofNaturalHistory(USNM)inWashington,D.C.,USA.
Etymology.— Thespeciesisnamedaftermymother,LillianAgnes Russett Daigle,
forencouragingmetoexplorethewondersofthenaturalworld.
male(holotype):Head. — Eyesinlifegreen,posteriorquarterportionblood-redand
edged withblack.Lightbrownlabrumwithbluishtinges andasmalldarkcentralspot.
Mandiblesand genaelightblue. Anteclypeus mottledblue, postclypeus darkbrown.
Anteffonslightblue,postfrons darkbrown.Antennaebrownwithbasalsegmentsringed
withblack,blue,andbrown.Occiputandvertexmostlybrownandlightbrown,bluish
areabetweenantennae andeyes (Fig. 1).Ocelliringed withblackbasally,two parallel
black slashmarks lateraltoocelli.Rearofheadlightbrown.
Thorax. — Prothorax brown, slightly darker dorsally.Twostout mesepistemal
horns(0.7 mmlong) tapering apically. Homs directedantero-laterally (Fig. 2).Black
middorsalcarina; mesepistemum black in medialquarter, brown laterally. Mesin-
fraepistemum, mesepimeron, metepistemum, metinfraepistemum, and metepimeron
allbrown.Venterpalebrown.
Legs. — Palebrown; armature black, no clawteeth.
Wings. — 13postnodal crossveins inforewings, 12inhindwings. Veinsblack;dark
brownpterostigma overlying 1cell, itsproximal sideoblique.
Abdomen.— Mostly blackdorsally withbrownlaterally, incompletepalebasal
Figs 1-5.Metaleptobasislillianaesp,n.,holotype6 (1-4),andallotypeS (5);(1)dorsalviewofhead; —
(2)lateralviewofcephalad-directedleftthoracichorn; —(3) dorsalview ofcaudalappendages;—(4)lat-
eral viewofcaudal appendages;—(5)lateral view ofovipositor.
Metaleptobasislillianaesp.n. 197
ringsanddarkapicalringsonsegments3-6.Segment 1and2 mostlybrownwithblack
dorsally.Segments3-4withlightbluishtinges overlaying thebrownlateralareas. Seg-
ments5-6 withdarkerbluetinges, almostblack. Segment 7 brownwithblack tinges
basallyandlaterally,pale basalringonly. Segment 8brownwithdarkerbrowninbasal
half.Segment 9withabasaltriangular-shaped darkbrownareaextendingrearwardand
downbothsidesof segment.Segment 10variegated withequal amountsofblackand
yellow-brownareas.Dorsalmarginelevatedandtrapezoidalinlateralview;slightlybifid
tobasebutstronglytruncateddorsally.Caudalappendages darkbrown,black apically.
Indorsalview,both cerciandparaprocts converging inwards attips(Fig. 3).Cerci in
lateralviewwideatbase, thennarrowingapically withblack tips hookeddownward.
CerciaboutVithelength oftheparaprocts. Viewedlaterally,brownparaproctsof uni-
formwidth,blackerapically, roundedandknobshaped towardsapex(Fig. 4).
Measurements (mm). —Totallengthincludingappendages48.0,abdomen40.5,forewing24.2,
andhindwing24.1.
FEMALE(allotype). — Verysimilartoholotypeincluding thoracichorns;incomplete
abdominalrings not as distinct. Colorpattern very similarexcept abdominalsegment
10uniformly darkbrown.Ovipositor blackwithdarkbrownareadorsally,extendsjust
beyond posterior marginof segment10andtolevelofdarkbrownconicalcerci(Fig.
5). No vulvarspine; styliblack.
Wings. - As inholotypeexcept 13postnodal crossveins inhindwings.
Measurements (mm). —Totallengthincludingappendages46.0,abdomen39.0,forewing25.5,
andhindwing25.0.
VARIATIONAMONGPARATYPES.— Paratypes similartoholotypeandallotype.Some
3 withbent, depressedorbrokenthoracichorns.Totallength(mm)of3 rangesfrom
44-48,948;abdomen337-40.5, 940;forewing 322-24,925; hindwing 3 22-24,9
25.5.Postnodalcrossveins inforewing 3 11-14,9 13andhindwing 3 12-14,9 13.
DISCUSSION
Metaleptobasis lillianaeisknown only from centralBolivia. Thenearest relative,
M. manicaria,isknownfromTrinidadandVenezuela.Thisspecies was foundinthe
shadedand tangled forest marginof alargelake. OtherOdonatafoundnearby inthe
shadewereAnatyajanuariaRis andLestesfalciferSjbstedt.
Thedarkenedterminalabdominalsegmentswill distinguishM.lillianaemalesand
femalesfromM.rmmicariaWilliamson, whichhavepaleterminalabdominalsegments.
Thecerciare barelydecurved,notstrongly decurvedas inM.manicaria.Viewedlater-
ally, thedorsalmarginofabdominalsegment 10ismoreelevatedandtrapezoidal than
inM.manicaria.Thethoracichornsaremoredepressedanddirectedmorelaterally than
theconspicuously elevated,anteriorly anddorsally directedhornsofM. manicaria.
198 J.J. Daigle
ACKNOWLEDGEMENTS
IwishtothankSIDNEYW.DUNKLE, ROSSERW.GARRISON,and KENJ.TENNESSENfortheir
commentsandreview.
REFERENCES
DAIGLE, J.J.,2003. Metaleptobasisminterispec.nov.from Ecuador(Zygoptera:Coenagrionidae).Odo-
natologica32(4):371-374.
GARRISON,R.W.&J.M.COSTA,2002. TheidentityofAgrion?minutissimum Selys,1876 andLeptoba-
sisroseaSelys, 1877(Zygoptera:Coenagrionidae),Odormtologica31(4):395-401.
WILLIAMSON,E.B.,1915.Notesonneotropicaldragonflies.Proc. U.S.Nat.Museum48(2089):601-638.