A new genus and species of Tortricinae (Lepidoptera: Tortricidae) from China

2005·1 MB·

by  Xinpu Wang

©EntomologicaFennica.16December2005
Anew genus and species of Tortricinae
(Lepidoptera: Tortricidae) from China
XinpuWang&HouhunLi*
Wang,X.&Li,H.2005:AnewgenusandspeciesofTortricinae(Lepidoptera:
Tortricidae)fromChina.—Entomol.Fennica16:263–265.
AnewtortricidgenusPlatyhomonopsisisproposed.Thetypespecies,P.dentata
sp.nov.,isdescribedbasedonspecimenscollectedinGuizhouProvince.Illustra-
tionsoftheadult,head,wingvenationandmalegenitaliaareprovided.
XinPuWangandHouhunLi*,DepartmentofBiology,NankaiUniversity,Weijin
Road 94, Tianjin, 300071, China; correspondent author’s e-mail: lihouhun
@nankai.edu.cn
Received3July2004,accepted28January2005
1.Introduction thorns.Gnathosabsent.Valvabroad,withapatch
oflargedensethornsinmiddleportion.Transtilla
The genus Platyhomonopsis gen. n. belongs to broad. Sacculus with free termination. Juxta
Archipini,Tortricinae.Itisverycloselyrelatedto large.Aedeaguswithsmallcoecumpenis,caulis
HomonopsisKuznetsov.Thetypespecies,Platy- absent.
homonopsis dentata sp. nov., is described from Diagnosis. The new genus is similar to Ho-
Guizhou Province, China. The type specimens monopsisKuznetsovinthepresenceofabroad,
are deposited in the Department of Biology, bilobeduncusandapatchoflargedensethornsin
NankaiUniversity,Tianjin,China.Theterminol- thevalva.Itcanbedistinguishedfromthelatter
ogyinthispapermostlyfollowsHorak(1984). bythefollowingcharacters:labialpalpusexceed-
ing vertex; veins M and CuA stalked in both
3 1
forewingandhindwing;discocellulardegenerate
2.Newtaxa inforewing;tegumenveryshortandbroad;uncus
provided with long hairs and the distal portion
2.1.ThegenusPlatyhomonopsisgen.n. with a few short thorns; gnathos absent; valva
withapatchoflargedensethornsinmiddlepor-
Typespecies:Platyhomonopsisdentatasp.n. tion.
Description. Ocellus posterior. Chaetosema Distribution.China(GuizhouProvince).
developed. Labial palpus ascending, exceeding Etymology.Thegenericnameisderivedfrom
vertex.Forewingbroad,termenmoderatelycon- the Greek prefix platy = broad, and the generic
cavebetweenR andM,tornusbroadlyrounded. nameHomonopsis,referringtothesimilarity of
5 3
Venation. Discocellular degenerate in fore- thenewgenuswithHomonopsis.
wing,veinsM andCuA stalkedinbothforewing Remarks.Costal1/4ofthemalehindwingin
3 1
andhindwing. thenewgenusisprovidedwithalargeclusterof
Male genitalia. Tegumen broad and short. darkhairsandbroadscales,whichmightbeaspe-
Uncusbroad,withdense,longhairs,concaveter- cialized scent organ. Forewing has some large
minally,bilobed,distalportionwithafewshort scales on the underside of costal base, which
264 Wang&Li (cid:127) ENTOMOL.FENNICAVol.16
(cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:4)(cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:7)(cid:9)
(cid:10)(cid:7)(cid:11)(cid:12)(cid:13)(cid:12)(cid:14)(cid:15)(cid:10)(cid:4)(cid:3)(cid:4)(cid:3)(cid:6)(cid:7)(cid:4)(cid:8)(cid:4)(cid:9)
(cid:10)(cid:11)(cid:12)(cid:13)(cid:12)(cid:14)(cid:15)(cid:7)(cid:16)(cid:4)(cid:17)(cid:4)(cid:18)(cid:19)(cid:20)(cid:13)(cid:14)(cid:4)
(cid:21)(cid:4)(cid:22)(cid:16)(cid:17)(cid:19)(cid:4)(cid:23)(cid:4)(cid:24)(cid:16)(cid:8)(cid:17)(cid:14)(cid:2)(cid:12)(cid:8)(cid:4)
(cid:19)(cid:4)(cid:25)(cid:17)(cid:13)(cid:16)(cid:3)(cid:16)(cid:8)(cid:2)(cid:14)(cid:17)(cid:13)(cid:2)(cid:17)(cid:4)
(cid:26)(cid:23)(cid:17)(cid:13)(cid:16)(cid:21)(cid:17)(cid:27)(cid:28)(cid:4)(cid:29)(cid:30)(cid:30)(cid:4)
mightbeanancillarystructureofthescentorgan able in the classification of Tortricinae. Absent
inthehindwing.ButthespeciesofHomonopsis gnathos of Platyhomonopsis gen. n. could be
donothavethisorganinthehindwing.Itispartic- autapomorphy.
ular that veins M and CuA are stalked in both LargethornsinthevalvaarerareinArchipini,
3 1
forewingandhindwingofthenewgenus.How- butcommoninOlethreutinae. Thethornscould
ever,theyarenotstalkedinHomonopsis,butcon- be synapomorphy of Platyhomonopsis gen. n.
natefromangle. and Homonopsis Kuznetsov, but different loca-
The genus Homonopsis was well studied tionofthornsmightbearesultofdiverseevolu-
(Obraztsov,1967,Yasuda,1972,1975,Kawabe tion.
1982, Razowski 1987, Kuznetsov 2001, Liu &
Li,2002).BothPlatyhomonopsisgen.n.andHo-
monopsispossessverybroadandbilobeduncus, 2.2.Platyhomonopsisdentatasp.n.
whichmightbesynapomorphyofthetwogenera. (Fig.1a–d)
Bifurcate uncus occurs in several genera of Ar-
chipini,suchasChiraps,DiplocalyptisandAphe- Type material. Holotype #: China, Jiangkou
lia,butitisalwaysslender,whichmayhaveun- County(33.43N,107.03E),GuizhouProvince,
dergonevariousevolutionaryevents. alt. 550 m a.s.l., 2.VI.2002, leg. Xinpu Wang,
Gnathos is absent or atrophied in Tortricini genitalia slide No. WXP02463. Paratype: 1 #,
andCochyliniofTortricinae,butitisubiquitous samedataasholotype.
inArchipiniandshowsvariation,forexamplelat- Diagnosis. The new species resembles
eral process present. So gnathos might be valu- Homonopsis illotana (Kennel) by having small
ENTOMOL.FENNICAVol.16 (cid:127) NewgenusandspeciesofTortricinae 265
metallicspotsintheforewing,butdiffersfromthe convexmedially.Juxtainvertedpentagonal-like.
latter in the following characters: (1) ground Aedeagus pointed apically, with small coecum
colorofforewingdarkbrown;(2)uncusprovided penis;caulisrudimentary;vesicawithoutcornuti.
with dense and long hairs, distal portion with a Female.Unknown.
fewshortthorns;(3)gnathosabsent;(4)ventral Distribution.China(Guizhou).
margin of valva distally with a large dent; (5) Hostplant.Unknown.
juxta inverted pentagonal-like; (6) aedeagus Etymology.Thenewspecificnameisderived
pointedapically. fromtheLatinworddentatus=dentate,inrefer-
Description. Male (Fig. 1a–b): Wing span encetothedentintheventralmarginofvalva.
17.0–18.5 mm. Frons with short pale yellowish
scales. Vertex provided with procumbent black Acknowledgements.WethankMr.K.R.TuckoftheNatu-
scales.Labialpalpus1.5timeslongerthandiame- ralHistoryMuseum,London,forcheckingthespecimens
andprovidingvaluablesuggestions.Wearealsogratefulto
ter of compound eye; first segment short, with
Dr.M.HorakoftheDivisionofEntomology,CSIRO,Can-
blackscalesindistalpart;secondsegmentslender
berra,andDr.MeiLingChanoftheNationalMuseumof
and long, gradually dilated; third segment thin NaturalScience,Taipei,forprovidinguswithhelpfulref-
andshort,yellowishbrown.Antennathick,with erences,andtoProf.ZizhongLioftheInstituteofEntomo-
dense cilia on ventral surface. Thorax dark logy,GuizhouUniversity,Guiyang,forassistingusinthe
field.TheresearchwassupportedbytheNationalNature
brown.Forewingbroad,costaprovidedwithan
ScienceFoundationofChinafortheSpecialProgram.
upwardfoldandsomelargescalesontheunder-
side of base; apex rounded; termen convex,
sinuate beyond apex; ground color dark brown, References
withsmallbluemetallicspots;basalpartofcosta
dark gray; cilia black. Hindwing and cilia dark
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gray, costa with a large cluster of dark hairs in structuresinTortricinae(Lep.,Tortricidae).—Mittei-
basal 1/4, posterior margin surrounded with a lungen der Schweizerischen Entomologischen
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darkbrown.Abdomenwithdorsalandlateralsur-
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Venation(Fig.1c):ForewingwithScgently lidae).—In:Ler,P.A.(ed.),KeytotheinsectsofRus-
sinuate,almoststraight;R frombehindmiddleof sian Far East. Vol. V. Pt. 3, Trichoptera and Lepi-
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thantoR;R distinctlyclosertoR thantoR;
1 3 4+5 2 Lepidoptera, Tortricidae. — Science Press, Beijing.
R andR longstalked;M andM obviouslysep- 463pp.
4 5 1 2
aratedatbase;CuA arisingfrom3/4ofcell;CuP Obraztsov,N.S.1967:NotesonthegenusHomonopsisV.
2
degenerative,only distinctontornus.Hindwing Kuznetsov (Lepidoptera: Tortricidae). — Entomo-
logischeBerichten27:173–175.
withScalmoststraight;RsandM long-stalked;
1 Razowski,J.1987:TheGeneraofTortricidae(Lepidop-
M slightlybentdownwards;CuA arisingfrom
2 2 tera). Part II: Palaearctic Childanotinae and Tortri-
4/5ofcell. cinae.—Actazoologicalcracoviensia30(11):141–
Malegenitalia(Fig.1d):Uncusgraduallynar- 355.
rowingtowarddistal,apexrounded.Valvaovate, Yasuda,T.1972:TheTortricinaeandSparganothinaeof
ventral margin distally with a large dent, dorsal Japan(Lepidoptera:Tortricidae)(PartI).—Bulletin
ofUniversityofOsakaPrefecture,Ser.B,24:53–153.
marginconvex;sacculusnarrowandshort,with
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weaklysclerotizedfreetermination,likeahook.
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