Calicnemia zhuae spec. nov. from Shaanxi, China (Zygoptera: Platycnemididae)

2008·0.79 MB·English

by  Zhang, H-J

Odonatologica37(4):375-379 December 1,2008
Calicnemia zhuaespec. nov. fromShaanxi, China
(Zygoptera: Platycnemididae)
H.-j. Zhang andZ.-d.Yang
ShaanxiBioresource Key Laboratory,ShaanxiUniversityofTechnology,
Hanzhong-723000,Shaanxi,China
[email protected]
Received January31,2008/Revised andAcceptedSeptember5,2008
Both sexesofthenewsp. aredescribed andillustrated. Holotype<J and allotype
9:China,Shaanxiprov.,Langaoco.,MtDubashan,alt. 1200m,28-VI1-2006;both
depositedwiththeShaanxiBioresourceKeyLaboratory,Hanzhong,China.Thepat-
ternofthe headand synthoraxaresimilar toC. miles (Laid!.), fromwhich thenew
sp. differsin patternofthetopoftheabdomen andin thestructureofanalappend-
agesandpenileorgan.
INTRODUCTION
The genusCalicnemia Strand is confinedto Asia andits distribution is cen-
tredinthe Himalaya range. Mostspecies occur in themontane forest habitats.
So far, 8 species havebeen reported fromChinaand wererecently reviewedby
YU & BU(2008), viz. C. chaoiWilson, C. erythromelas (Sel.), C. eximia(Sel.),
C. gulinensisYu &Bu, C. haksik Wilson& Reels, C. miles(Laidlaw), C.porcata
Yu& Bu,and C. sinensisLieftinck.
Thespecimens ofthenewspecies werecollectedby ourstudents. MoFa-xiang
and Wang Hao-jie, from the Dabashan mountain, located Sof Mt Qinling in
centralShaanxi, ontheborderbetweenthenortherntemperatezoneandthecool
subtropical zone, i.e.,ontheborderbetweenthePalaearcticandOrientalbiogeo-
graphical regions.
TheDubashanmountainisactuallysituatedwithintheOrientalRegion. Cali-
cnemiazhuaesp. n. maybe aspecies withthenorthernmostdistributionforthe
genus.
376 H.-j.Zhang&Z.-d.Yang
CALICNEMIA ZHUAE SP. N.
Figures 1-7
Material. —Holotype<5:China,Shaanxiprov.,Langaoco.,MtDubashan(108o53’E,32°19’N),
alt. 1200m,28-VI1-2006,Mo Fa-xiangleg. — Allotype S:samedata. — Paratype 9;samelocality,
30-VII-1987,WangHao-jieleg.The holotypeandallotypewillbedepositedwith theShaanxiBiore-
sourceKeyLaboratory,Hanzhong,China.
Etymology. — Thespeciesisdedicated toProfessor ZhuHui-qian(ShanxiUniversity,Tai-
yuan,China)*inrecognitionofher magnanimoussupportofourodonatologicalresearch.
MALE holotype. — Head (Fig. 1).- Labium,anteclypeus, postclypeus, man-
dibleand genae(upward to posterior ocelli) orange-yellow, apartfroman iso-
lated,transverse blackstripe atthebaseofantennae. Posteriortoocelli, occiput
and ventrum black withprominentyellow stripe at sides, lightlyyellow elongate
triangularlateralspoton outersidesofoculus.Thefirst twosegmentsofantenna
yellow; flagellum dark, orange-yellow tobrownish-black.
Thorax. - Prothoraxand synthorax black(Fig. 2),marked withorange
stripes. Prothorax witha circularyellow spot atsideof mid-lobe, adjacent to a
small yellow spot at scarf of synthorax. Isolatedorangeantehumeralstripes.
Metepisternum withthinyellowbandcrossing spiracle, thebandbroadestante-
riorlyandnarrowedposteriorly. Second suture withbroadblack stripes, therest
of metepimeron light yellow. Mesinfraepisternum andmetinfraepisternum dark
yellow, thinlypruinescent at underside.
Legs: coxa andtrochanter yellowish-brown, femurblack with yellow spot at
sub-base, tibiaouter sideorange,innersideblack. Tarsusandclaw darkorange-
yellow, clawat topblack.
Wings hyaline. Venationalcharactersas inthecongeners.Fw 18Px, 16inHw.
Pt. darkyellow, diamond-shaped, covering 1.5cells.
Abdomen.— Segment 1 light yellow atsides, dorsumblackwith terminal
black ring. Segments 2-10 red, segments 2-6withthin black terminalring, 7-10
terminalring notobvious,but gradually dull, redto darkorange.
Analappendages darkorange(Figs 3-5).Superiorsslightlylongerthansegment
10; tipobtuseandslightly curved downwards,andtwo hugeventro-basalteeth;
theinteriortoothflatwithseveral smallteeth, outertoothtapered inlateralview.
Inferiorsslightly longerthanthesuperiors, withslight ventro-basalprominence,
wideboot-shaped subapically andupwardly curved at tip.Vieweddorsally,anal
appendages are pincer-shaped; superiors slightly broadenedinmiddleinteriorly,
withdullteethat tip. Inferiorsbroadenedbasally atinnerside, withblack thorn
at tip(dorsal view).
Penileorgan(Figs6-7):terminallobeslightly concave, formingwingandslightly
curved ahead.
*Shanxi and Shaanxiaretwodifferent Chineseprovinces.
Calicnemia zhuaesp.n 377
Measurements (inmm).— Abdomen +appendageslength30;hw length23.
FEMALE. - Similarto male.Differencesinclude:blackstripewidestatbaseof
antennaaroundocellus, formingdumbbellshape; yellowelongatetriangularspot
expanding at innersideof oculus, andjoined withyellow spot atbaseofman-
dibleand genae. Black shortstripes at sidesoforange-yellow anteclypeus. Yel-
low spotlargeratsides ofprothorax, butantehumeralandsecond suture black
stripe thinner.Segments 2-5 laterally yellowish, segments 8-10 darkerand dull
brownlaterally, almost black dorsally. Cerci black. Ovipositor brownish-black
and longer than segment 10. Legs pale, mainly yellow, outer femoraandclaws
black, tarsidarkyellow.
Measurements (inmm). - Abdomen length27;hwlength23.
DISCUSSION
Basedon the structureof thepenile organ,LIEFTINCK(1984) dividedthe
genusintotwospecies-groups. In groupIthe recurved penis lobeis narrow, rib-
bon-likeorfilamentousapically,whereasingroupIIit isbroad,variouslyexpand-
ed andlacking filaments.Calicnemia zhuaesp. n.isreferableto groupII, butit
canbe distinguished fromtheotherspecies of thegroup(C. chaoi, C. haksik, C.
miles, C. miniata) bycolourpattern,andby thestructureofanalappendages and
Figs. 1-7Calicnemiazhuaesp.n.,male: (1)head,dorsalview; —(2)thorax,lateralview;— (3)caudal
appendages,lateral view; — (4)caudal appendages,dorsal view; —(5)caudal appendages,ventral
view;— (6)penileorgan,dorsalview; —(7)penileorgan,lateralview.
378 H.-j.Zhang&Z.-d.Yang
TableI
Comparisonofstructural featuresinCalicnemia zhuae sp.n.and C. miles
FFeeaattuurree zzhhuuaaeesspp..nn.. mmiilleess
MMiiddlloobbee BBllaacckk oonnssiiddeess,,wwiitthh aacciirrccllee OOrraannggee--yyeelllloowwoonnssiiddeess,,nnoossppoott
PPrrootthhoorraaxx YYeelllloowwssppoott
AAnntteehhuummeerraall OOrraannggeeyyeellllooww BBrriicckk--rreedd
ssttrriippeess
SSeeggmmeennttss22--66 wwiitthhtthhiinn bbllaacckk tteerrmmiinnaall rriinngg NNoo ssuucchhrriinngg
AAnnaallaappppeennddaaggeess EEnndd ooffssuuppeerriioorrssaannddiinnffeerriioorrssssttrroonnggllyy EEnnddooffssuuppeerriioorrssaanndd iinnffeerriioorrss
rreeccuurrvveedd,,ppiinncceerr--sshhaappeedd;; nnoottppiinncceerr--sshhaappee,,aannddnnootteeeetthh;;
SSuuppeerriioorrsswwiitthhoobbttuusseetteeeetthh,,iinnffeerriioorrss ssuuppeerriioorrsswwiitthh22tteeeetthh,,tthheettiippssooff
wwiitthh aatthhoorrnn aattttiipp;;ssuuppeerriioorrsswwiitthh wwhhiicchhaarreeddeeffiinniitteellyysswwoolllleenn,,bbuutt
22hhuuggeetteeeetthh,,iinnffeerriioorrttooootthhffllaattwwiitthh nnoottccuurrvveeddiinnddoorrssaall vviieeww
sseevveerraallssmmaallll tteeeetthhiinn llaatteerraallvviieeww,,tthheettiippss
ooffwwhhiicchhaarreeddeeffiinniitteellyyccuurrvveedd,,bbuuttnnoott
sswwoolllleenn iinn ddoorrssaall vviieeww((FFiiggss33--55))
PPeenniillee oorrggaann IInnddoorrssaall vviieeww,,tteerrmmiinnaall lloobbeeiissccuurrlleedd IInnddoorrssaallvviieeww,,tteerrmmiinnaalllloobbeeffoorrmmss
aattssiiddee,, ffoorrmmiinnggsshhaarrppllyy--ppooiinntteedd aabbrrooaadd ttrriiaannggllee,,wwhhiicchhiiss nnoott
ttrriiaannggllee.. ccuurrlleeddaattssiiddee..
IInnllaatteerraallvviieeww,,tthheeaappiiccaallttiippoofftteerrmmiinnaall IInnllaatteerraallvviieeww,,tthheeaappiiccaallttiippooff
lloobbeeffoorrmmssaattvveennttrraalleeddggeeaabbrrooaadd tteerrmmiinnaall lloobbeeaattvveennttrraall eeddggeeiiss
eeddggee,,wwiitthhccoommuutteedd ttiipp((FFiiggss66--77)) rroouunnddeedd,,wwiitthhoouuttccoorrnnuutteedd ttiipp
penile organ. Thepatternofheadandsynthorax of thenewspecies are similar
to thoseof C. miles,from whichitis differentiatedby the patternofthe topof
abdomenand by structureof anal appendages andpenis (cf. FRASER, 1933;
L1EFTINCK, 1977;ASAHINA, 1985. 1997). Acomparison ofthetwo species
is presented inTableI.
ACKNOWLEDGEMENTS
Wewishtoexpress ourwarm thanks toMr KEITH DP.WILSON,forhelpwith theliterature
and forhiskind commentsonthemanuscript.
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