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A New Donacia from Laos, with New Record of Sominella longicornis (JACOBY) (Coleoptera, Chrysomelidae, Donaciinae) PDF

6 Pages·2003·6.3 MB·English
by  HayashiM
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Preview A New Donacia from Laos, with New Record of Sominella longicornis (JACOBY) (Coleoptera, Chrysomelidae, Donaciinae)

Eli・t,-a、Tok、,)31(1):31-36,June30,2003 A New onacza fromLaos,withNewRecordofSomzKeffa oKgfcorms (JACOBY)(Coleoptera,Chrysomelidae,Donaciinae) Masakazu HAYASHI HoshizakiGreenFoundation,1659-50kinoshima,Sone-oho,Hirata,691-0076Japan Abstract Two new recordsof theDonaciinae(Coleoptera,Chrysomelidae)are reported from Laos. A new donaciinespecies, 0,facia ( onac1o111加7a)yes/lire,1111sp nov.,isdescribed.Itresembles 0,facia(0o1lelc1o1川Illa)l'tipi'ossaPAYKULLfromthewest- ernPalearcticRegionbutendopha1lusisusc、ful theiridentification.So,nine//a/o,1glco・,川s (JACOBY)isrecordedforthefirsttimefromLaos. The donaciine fauna of Laos is poorly known, only one species, Donacla (Cyphogaster)JavanaWIEDEMANN, havingbeen recordedby KIMoToandGREssITT (1979). In 2002, Dr. Hiroyuki YosHIToMl, Dr. Masataka SAT0 and Dr. Nobuo OHBAYAsHl visitedLaos, and theycollected twospeciesoftheDonaciinaeatPhuPan, HouaphanProvince.0neofthem,belongingtothegenusDonacia,isrecognizedasa new speciesbased onitsendopha11ic features. Theother species is identifiedwith Somine11a1onglco1・nis(JACOBY)previouslyknownfromSouthChina.Itisrecordedfor the first time from Laos. I gratefully acknowledge toDr. Hiroyuki YosHIToMl, Dr. MasatakaSAT0, Dr. NobuoOHBAYAsHlandDr.TatsuyaNIlsATo,whoprovidedmewithvaluablematerials. onacia( onacfom加a)yes/Ii'fo,nil'sp nov. (Figs.1-21) Diag11osls. Pronota1discwithoutsetae;legsmetallic;endophaIlusofmalegeni- taliaentirelyelongate,medianprocessstraightlyelongate,apexnarrowlytruncatewith ostiumbursae,paireddorsalscleritesslender,basalsupportingblockelongate. Description. Male. Bodyentirelyblackishcoppery,sometimesredorpurple. Eyes small; supraocular furrow presentbutshallow; vertex pubescentand swollen, withdeepmedianline.Antennaentirelyblackishcoppery;antennomere5thelongest of 2 to6; antennomere4slightly longer than3; antennomere4 twiceas longas2. Pronota1outlinequadrate, length longer than width, anterior and posterior corn ers prominent;anterolateralcallipresentbutcallosalsulcusindistinct;discfinelypunctate without transverserugae;medianlineindistinct; basalsulcuspresentbutshallowand sparselypunctate.Elytronwithtwoshallowdepressionsonbase-suturalandmid-su- tural partsof disc;sutural interval finelypunctate, withoutrugae,graduallynarrowed MasakazuHAYASHl 32 〇 DonaciinaeChrysomelidsfromLaos 33 2 9 l l I '6 Figs. 5-16. Donaclal・os1/tto,tutsp nov. - 5-6,Pronotum(5.male;6.female);7-9.elytra(7,basalto middlepartofleftelytron;8,apexofleftelytron;9,suturalintervalofelytra);10-11.metafemur(10, male;11, female);12-13,pygidium(12,male;13, female);14,malegenitalia;15-16,laststemite (15,male・16, female). Scalebar=1.0mm. towardsapex; other intervalsfinelyrugoseandpunctulate; apex truncate,outerand inner apical angles rounded. Legs entirely metallic colored; outer apical angleof protibiaacutewithasmallspine;metafemurwithasmall tooth.Pygidialapexemar- ginate.Medianlobeofgenitalianarrowedapically,withamedianlip;acapoftegmen slender.Sternaentirelycopperyandpubescent; laststernite(sternumVII)punctate, Figs. 1 onacla_1・os1/110,1111spnov:1-2,male(holotype);3 female. - 1,3,Dorsalview;2,4 . , ventral view. Scalebar=5.0mm. 34 MasakazuHAYAsH 19 20 21 18 17 Figs. 17-21. Malegenitaliao、fDotlaclt1、,oshiton111sp nov. - l7,Tegmen;18,apexofmedianlobe 19-21,endophallus(19,dorsalview:20.lateralview;21.ventralview). Scalebar=1.0mm. apicalshapetruncate,apicaldepressionshallow. Female. Body entirely blackish coppery or red. Pronotal outlinequadrate, widthlongerthanlength,pygidialapexgentlyrounded.Apicalshapeof laststernite entirelyacutebutroundedatapex. Bodylength:males8.4-8.9mm, females9.3-9.8mm. Co,7?parison. Thenewspecies resembles onac1a lmp1-essaPAYKuLL inmost characters.Apicalshapeofendopha1licmedianprocessisthemostusefulcharacterfor theiridentification:medianprocessstraightlyelongateinthenewspecies,short,slen- derandbenttowardtheposteriorsideinD.lmpt-ess(1. Remarks. ThesubgenusDonac1omlmaMEDvEDEvisarelativelylargegroupin theDonaciinaeandincludesabout50Palearcticand20Nearcticspecies(AsKEvoLD, 1990,1991).ThenewspeciesisthefirstmemberofthesubgenusfromSoutheastAsia. s「rfbl'f'o'1. Laos. Hostplants. Cyperaceae. Typese11e.s. Holotypeand77paratypesaredesignated. Holotype. Phu Pan , (Mt),BanSaleui,HouaphanProv., Laos,28-IV~6-V-2002, H. YosHIToMl leg. (in coll etEUMJ:EntomologicalLaboratory,FacultyofAgriculture,EhimeUniversity, Matsuyama,Japan).Paratypes.11 4 ,samedataasholotype 23 8 ,same , , DonaciinaeChrysomelidsfromLaos 35 ,・l-,. 、 、・ - ( : ・一 一 25 :: _ Figs. 22-25. Sonllne//a/onglco1・川s(JACOBY);22-23,male(22,habitus;23,righthindleg);24-25,fe- male(24,habitus;25,righthindleg). localityasholotype,28-IV~2-V-2002, M.SAT01eg 26 5 ,same locality as , holotype,27-IV-2003,T.NllsAToleg.ParatypesarehousedintheEUMJ,SNM(Shin- jikoNatureMuseum, Hirata,Japan), 0MNH (OsakaMuseumof Natural History, Osaka,Japan),andMasatakaSAT0collection,Nagoya,Japan. Etymology. Thespecificnameof thenewspeciesisdedicatedtoDr.Hiroyuki YosHIToMI,whocollectedtheholotypeofthenewspecies. Sominella1ongicornls(JACOBY) (Figs22-25) Donacia1onglco,・nisJACOBY,1890,Entomologist,23:84. Records. 1 1 Mt.PhuPan,BanSaleui, XamNeua, HouaphanProv., Laos, , , alt.ca l,500-1,700m,4-V-2002,N.0HBAYAsHlleg.(incoll etEUMJ). Distribution. Laos (newrecord); China(Zhejiang, Hubei, Fujian) (this report; Taneta1.,1980). 1dans, Themarsh,habitat of ac1ayosヘftoml an Semi,7eff fongfcorms i show i o Fig 26. 36 MasakazuHAYAsH Fig.26. Habitat of onaclayes加o川, 1andSo,n加effa/o,Igloo,・nls marsh on PhuPan(photobyH YOSHITOMl). 要 約 林 成多:ラオス産Donacla属の1新種の記載とSo,nlne11a/ongicornis(JACOBY)の記録 (甲虫 目ハムシ科ネクイハムシ亜科). - 筆者は, 2002年の春に吉富博之博士, 佐藤正孝博士, 大 林延夫博士がラオスの高地の湿地で採集された2種のネクイハムシを検討する機会を得た. Donacia属の雄交尾器骨片 (内袋) を含めて詳しく検討した結果, 新種であるという結論に達 し, Donacia(1Donaclomima)yoshitom11spnov.として記載した. 本新種はヨーロッパから知られ るDo,1actalmp,・ossaPAYKuLLに似てぃるが, 骨片先端部の突起の形状が明瞭に異なる. また, Somine1/a/ong,co・,n,sはこれまで中国南部のみから知られていたが, ラオスから初めて記録され た. なお, Dyoshitomiiの正基準標本は, 愛媛大学農学部昆虫学研究室 (EUMJ) に保管されて いる. References AsKEvoLD, 1. S., 1990. Reconstructed phylogeny and reclassification of the genera of Donaciinae (Coleoptera:Chrysomelidae). Quaestent.,26:601-664. - 1991. Classification,reconstructedphylogeny,andgeographichistoryoftheNewWorldmem- bers of Plate1lmaris THOMSON, l859 (Coleoptera: Chrysomelidae: Donaciinae). Me,n ent. Soc. Can.,157:5-l75. KIMoTo,S.,&J. L.GREssITT,1979. Chrysomelidae(Coleoptera)ofThailand,Cambodia,LaosandViet- nam.1.Sagrinae,Donaciinae,Zeugophorinae,Mega1opodinaeandCriocerinae. Paclf Ins.,20:191- 256. TAN,J.,P.YU,H.L1,S.WANG&S.JIANG,1980. Coleoptera:Chrysomelidae(I).FaunacfChineseEco- nomic1、nsects,(18).xiii十213pp.SciencePress,Beijing.(InChinese)

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