Three new species of the leafhopper genus Oncopsis Burmeister, 1838 (Hemiptera: Cicadellidae, Macropsinae) from Sichuan Province of Southwestern China

2018·1.9 MB·

by  Hu Li

©EntomologicaFennica.19March2018
Three new species of the leafhopper genus Oncopsis
Burmeister, 1838 (Hemiptera: Cicadellidae, Macropsinae)
from Sichuan Province of Southwestern China
HuLi,Ren-HuaiDai*&Zi-ZhongLi
Li,H.,Dai,R.-H.&Li,Z.-Z.2018:Threenewspeciesoftheleafhoppergenus
OncopsisBurmeister,1838(Hemiptera:Cicadellidae,Macropsinae)fromSichu-
anProvinceofSouthwesternChina.—Entomol.Fennica29:30–38.
ThreenewspeciesoftheleafhoppergenusOncopsis:O.graciaedeagussp.n.,
O. hailuogouensis sp. n. and O. ludingensis sp. n., from Sichuan Province,
SouthwesternChinaaredescribedandillustratedinthecurrentpaperalongwith
amapshowingthetypelocality(Hailuogou)ofthesenewspeciesinSichuanPro-
vince,China.
H.Li,ShaanxiKeyLaboratoryofBio-resources,ShaanxiUniversityofTechnol-
ogy,Hanzhong,Shaanxi,723000P.R.China;E-mail:[email protected]
R.-H. Dai (* corresponding author) and Z.-Z. Li, Institute of Entomology of
GuizhouUniversity;TheProvincialKeyLaboratoryforAgriculturalPestMan-
agement of Mountainous Region, Guiyang, Guizhou, 550025 P.R. China; E-
mails:[email protected],[email protected]
Received7February2017,accepted16June2017
1.Introduction Duringourstudyoftheleafhoppersubfamily
Macropsinaein Hailuogou in theMoxitown of
ThemostlyHolarcticleafhoppergenusOncopsis Luding County, Sichuan Province, southern
is the second largest genus in the sub-family China,threenewspeciesofthegenusOncopsis,
Macropsinae (Hemiptera: Cicadellidae). It was O.graciaedeagussp.n.,O.hailuogouensissp.n.
firstreportedbyBurmeister(1838)asasubgenus and O. ludingensis sp. n., were identified. The
of the genus Bythoscopus. Later, Westwood present paper includes the detailed descriptions
(1840)raisedOncopsisasagenusandfurtherre- of these three new species along with illustra-
ported Cicada flavicollis Linnaeus, 1761 as the tions,imagesandamapshowingtheirtypelocal-
typespecies.Subsequently,manyauthors(Laute- ity.
rer & Anufriev 1969, Hamilton 1980, 1983,
Kuoh 1981, 1985, 1987, 1992, Korolevskaya
1984, Anufriev & Emeljanov 1988, Tishechkin 2.Materialsandmethods
1992,2008,2011,2017,Liu&Zhang2003,Xuet
al.2006,Okudera2008,Mühlethaler2008,Liu The morphological terminologies used here for
2009,Dai&Li2013,Yang&Zhang2015)stud- thespeciesdescriptionsfollowtheworksofAnu-
iedOncopsisandcategorizedanumberofspecies friev (1967), Hamilton (1980) and Tishechkin
asbelongingtothisgenus.Todate,atotalof90 (2017). The examination of some holotypes of
specieshavebeenrecordedworldwide,including OncopsisisbasedonastudyreportedbyLietal.
23speciesfromChina. (2014,2015).Thebodylengthismeasuredfrom
ENTOMOL.FENNICAVol.29 (cid:127) ThreenewspeciesofOncopsisleafhoppers 31
Fig.1.MalesofnewOncopsisspeciesindorsal(a,d,g),lateral(b,e,h)andfacial(c,f,i)view.–a–c.Oncopsis
graciaedeagussp.n.–d–f.O.hailuogouensissp.n.–g–i.O.ludingensissp.n.Scalebars=1.0mm,except
forc,f,i=0.5mm.
theapexoftheheadtotheendoftheforewings LudingCounty,Moxitown,Hailuogou,3,000m
andisexpressedasmillimetres(mm). above sea level, 102.027572 N, 29.584225 E,
Thetypespecimensofthenewspeciesarede- 29.VII.2012, LiHu, Fan Zhi-Hua&Jiao Meng
positedintheInstituteofEntomology,Guizhou leg. Paratypes, 5## 3$$, samedataasholo-
University,Guiyang,China(GUGC). type.
Description. Holotype. Colouration. Body
(Fig.1a–c)patternyellowishbrown.Crownwith
3.Descriptionsofnewspecies a transverse black band. Face yellowish, eyes
palebrownanddorsalmarginofthefrontdark;
3.1.Oncopsisgraciaedeagussp.n. centralareawithadorsallyarcingblackbandbe-
(Figs.1a–c,2a–o,5) low ocelli and a middle constriction, fronto-
clypeuswithsomedarkmarkingsonlowerarea.
Type material. Holotype, #, China: Sichuan Pronotum yellowish brown, with dark brown
prov.,TibetanAutonomousPrefectureofGarzê, markings,denseinmiddleandsparseathindmar-
32 Lietal. (cid:127) ENTOMOL.FENNICAVol.29
Fig.2.Oncopsisgraciaedeagussp.n.–a.Malepygofer,lateralview.–b.Subgenitalplate,lateralview.–c,e,g.
2ndabdominaltergalapodemes.–d,f,h.2ndabdominalsternalapodemes.–i.Aedeagus,laterview.–j.Aedea-
gus,ventralview.–k.Dorsalconnective,lateralview.–l.Style,dorsalview.–m.Connective,dorsalview.–n.
Connective,lateralview.–o.2ndvalvulaeofovipositor.
gin, except at yellowish area of frontal margin longitudinal band in middle. Scutellum dark.
neareyes.Mesonotumreddishbrown,withtwo Forewings yellowish brown, with hyaline fene-
darktriangularspotsinsideanglesandonedark strae and dark areas, veins concolourous with
ENTOMOL.FENNICAVol.29 (cid:127) ThreenewspeciesofOncopsisleafhoppers 33
theirsurroundingareas,weaklyvisible.Legsyel- mediallydeeplydepressed,withtwolateraldor-
lowishbrown,withdarkmarkings. sallybentarms.
Body (Fig. 1a–c). Stout and cuneiform, i.e. Female.Bodycolourationpatternandappear-
typicalofthegenus.Headshortenedandpromi- ancesimilartothoseofmales,exceptmoreorless
nent forward; head, including eyes, narrower lighter in colour and stronger, and face without
than pronotum. Face, including eyes, broader obvious suture from frontoclypeus. Seventh
thanlong;frontoclypeuswithobviouslongitudi- sternitebroadandhindmarginsinuatedandme-
nalandobliquestriationsinblackareasbetween dially excavated; length of midline approxi-
andbelowocelli.Loradistinct,withobvioussu- mately 1.5 times length of sixth sternite. Ovi-
ture from frontoclypeus; anteclypeus basally positor definitely projecting beyond pygofer.
broad, tapered to pointed end and projected be- Secondvalvulae(Fig.2o)withapproximately12
yondgena;distancebetweentwoocellinearly3 subapicalteeth.
timesmorethanthatfromanocellustoadjacent Measurement.Length(includingtegmen):#
eye.Pronotumonwardandbilaterallydeclivous, (holotype+paratypes),4.7–5.0mm;$(paraty-
with strong transverse striations, 2.5 times pes),4.8–5.2mm.
broaderthanlong,withposteriormarginslightly Distribution.China(SichuanProvince)(Fig.
incurvateatmiddle.Scutellumnearlytriangular, 5).
with a rough surface and weak striations and Host.Betulaspp.(Betulaceae).
punctum,medianlength1.4timeslengthofpro- Remark.Thenewspeciesissomewhatsimilar
notum.Forewingssubdistallybroader,withthree toO.melichariLauterer&Anufriev,1969inthe
anteapicalcells,venationprominent. lateralaspectoftheslenderaedeagus.However,it
Secondabdominaltergalapodemes(Fig.2c, differs in the following aspects: the face has an
e, g) broad, with a round apex and sporadically obviouslyvisiblelorum,thepresenceofasuture
sinuated inner margins. Second abdominal ster- betweenthelorumandfrontoclypeus,thepointed
nalapodemes(Fig.2d,f,h)short,slightlydevel- anteclypeus in males, aedeagus with medial
oped,small,triangularandbasallybroader,with intumescentiaandfineprotuberancesontheven-
tipssubacutetoacute. tralmarginbelowthesubapicalgonoporeandthe
Male genitalia with a basally broad pygofer shapeofthedorsalconnective.
(Fig.2a),arelativelysmalllobe,truncatecaudal Etymology.Thespecificnameisderivedfrom
margin and weakly undate ventral margin. theLatinword“graci”,indicatingthattheaedea-
Subgenitalplate(Fig.2b)slenderwithmarginal gusisslenderinthelateralview.
setaelargelyonventralmargin,obviouslyshorter
than ventral margin of pygofer. Aedeagus (Fig.
2i–j),typicalofthegenus,basallybroader.Inlat- 3.2.Oncopsishailuogouensissp.n.
eral view, shaft slender, distal half above gono- (Figs.1d–f,3a–j,5)
porenarrowandmarginsparallel,withadorsally
expandedapexandastrongdorsalapodeme;in Type material. Holotype, #, China: Sichuan
ventralview,shaftinflatedinmiddle,withsome prov.,TibetanAutonomousPrefectureofGarzê,
fineprotuberancesonventralmarginbelowsub- LudingCounty,Moxitown,Hailuogou,3,000m
apical gonopore, shaft apex narrow and deeply above sea level, 102.027572 N, 29.584225 E,
depressedinmiddle.Dorsalconnective(Fig.2k) 29.VII.2012,JiaoMengleg.
stronglydeveloped,medialprocesslargeandbi- Description. Holotype. Colouration. Body
furcated,dorsalbranchstoutandlong,apexblunt (Fig.1d–f)patternbrown.Crownbrownwitha
anddirectedcaudoventrally,ventralbranchrela- transverse black median band. Face yellowish;
tively slender, “S”-shaped, apex truncate and frontoclypeus with a central black “n”-shaped
ventrallytwisted.Style(Fig.2l)stemstout,with marking, its lateral corners extending to ocelli;
setaeonoutermarginandanacutetip.Connec- alsowithanarrowblackbandinthemiddlejoin-
tive (Fig. 2m–n) with anterior margin broader ingittocrown.Lowerpartoffrontoclypeuslater-
than posterior margin; anterior margin further ally dark to medially darker, anteclypeus black,
withlongfinger-likeprocesses,posteriormargin eyes reddish brown. Pronotumdark, with black
34 Lietal. (cid:127) ENTOMOL.FENNICAVol.29
Fig.3.Oncopsishailuogouensissp.n.–a.Malepygofer,lateralview.–b.Subgenitalplate,lateralview.–c.2nd
abdominaltergalapodemes.–d.2ndabdominalsternalapodemes.–e.Aedeagus,laterview.–f.Aedeagus,
ventralview.–g.Dorsalconnective,lateralview.–h.Style,dorsalview.–i.Connective,dorsalview.–j.Connec-
tive,lateralview.
maculaeneareyes.Mesonotumyellowishbrown, ocellustoadjacenteye.Pronotumwithtransverse
withtriangularblackspotsinlateralcornersanda stripes,2.2timeswiderthanlong.Anteriormar-
pairofsmallspotsinthemiddle.Scutellumgrad- gin prominent forward, posterior margin medi-
uallybrowntowardbasetodarkerbrowntoward allyconcave.Scutellum1.1timesmediallength
distal side. Forewings translucent brown, with ofpronotum. Forewingswithclearly prominent
distinctly darker brown veins. Legsbrown with veinsandthreeanteapicalcells.
blackspots. Second abdominal apodemes (Fig. 3c–d)
Body (Fig. 1d–f). Slender. Head, including weakly developed, small and short; tergal apo-
eyes,shortandparallelmargined;headnearlyas demeswithroundapexes,sternalapodemeswith
wide as pronotum. Face across eyes wider than acuteapexespointedateachother.
long, striations on surface weakly visible, dis- Malegenitalia.Withabasallybroadpygofer
tancebetweenocellinearly5timesthatfroman side(Fig.3a),nearlysquaredlobe,inciseddorsal
ENTOMOL.FENNICAVol.29 (cid:127) ThreenewspeciesofOncopsisleafhoppers 35
Fig.4.Oncopsisludingensissp.n.–a.Malepygofer,lateralview.–b.Subgenitalplate,lateralview.–c,e.2nd
abdominaltergalapodemes.–d,f.2ndabdominalsternalapodemes.–g.Aedeagus,laterview.–h.Aedeagus,
ventralview.–i.Dorsalconnective,lateralview.–j.Style,dorsalview.–k.Connective,dorsalview.–l.Connec-
tive,lateralview.–m.2ndvalvulaeofovipositor.
margin and truncate hind margin. Subgenital apex and a subapical gonopore. Dorsal connec-
plate(Fig.3b)slender,shorterthanventralmar- tive (Fig. 3g) with pliers-like bifurcated medial
ginofpygoferandgradually taperedtoaround processes,withinnermarginmoreorlesssinuate
apex,withsomemarginalsetae.Aedeagus(Fig. and round caudally pointed tips; ventral branch
3e–f) laterally compressed and dorsally slightly stoutandlongerthandorsalone.Style(Fig.3h)
bent, with a round apex in lateral view, basally stout and apex slightly reflexed and truncate.
broaderinventralview,withadeeplyexcavated Connective(Fig.3i–j)typical.
36 Lietal. (cid:127) ENTOMOL.FENNICAVol.29
Fig.5.Mapshowingthetypelocality(Hailuogou)ofOncopsisgraciaedeagussp.n.,O.hailuogouensissp.n.
andO.ludingensissp.n.inChina,SichuanProvince.
Female.Unknown. apairofsmallblackspotsonposteriorpart.Scu-
Measurement.Length(includingtegmen):# tellumwithablackmediallongitudinalbandon
(holotype),3.3mm. basal half. Forewings with almost black veins.
Distribution.China(SichuanProvince)(Fig. Legspaleyellowish.
5). Body (Fig. 1g–i). Stout. Head shorter, and
Host.Betulaspp.(Betulaceae). crownacrosseyesnarrowerthanpronotum.Face,
Remark. The colouration and appearance of including eyes, wider than long, with dense
thenewspeciesistypicalforthegenus,butthe stripes and punctations; inconspicuous suture
speciescanbedistinguishedfromthecongeners present between lora and frontoclypeus, ante-
by the less developed second abdominal apo- clypeus with a round end. Distance between
demesofthetergiteandsternite,andthedifferent ocellinearly3.3timesthatfromanocellustoad-
shape of the bifurcated processes of the dorsal jacenteye.Pronotumforwardandbilaterallydec-
connective. livous, 2.3 times wider than long, with dense
Etymology. The new species name refers to transversestriations.Anteriormarginprominent
thetypelocality,Hailuogou(Sichuanprov.). onward,hindmarginmediallyexcavated.Scutel-
lumwithamiddlelength1.1timesthatofprono-
tum. Forewings with prominent venation and
3.3.Oncopsisludingensissp.n. threeanteapicalcells.
(Figs.1g–i,4a–m,5) Secondabdominalapodemesoftergite(Fig.
4c, e) wide, with nearly parallel margins and a
Type material. Holotype, #, China: Sichuan truncate apex. Second abdominal apodemes of
prov.,TibetanAutonomousPrefectureofGarzê, sternite (Fig. 4d, f) basally broad, tapered to an
LudingCounty,Moxitown,Hailuogou,3,000m acute or subacute apex. Distance between apo-
above sea level, 102.027572 N, 29.584225 E, demesnearly2timestheirmiddlelength.
29.VII.2012, LiHu, Fan Zhi-Hua&Jiao Meng Malegenitalia.Withabasallybroadpygofer
leg.Paratypes,1#5$$:samedataasholotype. (Fig. 4a), caudally slightly elongated lobe, in-
Description. Male holotype. Colouration. cised dorsal margin, truncate hind margin and
Body (Fig. 1g–i) pattern pale yellowish brown. ventralmarginwithsomesetae.Subgenitalplate
Face yellow with stripes, punctations and black (Fig.4b)slender,ventralhalfwithsetaeandapex
markings; frontoclypeus with black medial roundandnotprojectedbeyondpygoferterminal.
thyridial band below ocelli and lower part with Aedeagus(Fig.4g–h)basallybroad,witharound
large maculae near lora. Eyes pale brown, with apexinlateralviewandmediallyexcavatedapex
sporadic red tinge. Pronotum with sparse clear on ventral view. Dorsal apodeme developed,
blackmaculae.Mesonotumwithablackmedial gonoporesubapical.Dorsalconnective(Fig.4i)
longitudinalband,lateraltriangularmaculaeand strongly developed, medial process bifurcated,
ENTOMOL.FENNICAVol.29 (cid:127) ThreenewspeciesofOncopsisleafhoppers 37
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Korolevskaya,L.L.1984:AnewspeciesofthegenusOn-
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