TThhee LLeepipdiopdteorpoltoegircaollSoocgieitycal Society ooff JJaapapnan uttth 7hans. Iopid.Soc.koan 47(2):ID3-10J5u,ne1996 A record of the host plant and larval biology of .IVokona rubra Arita and Tosevski,1992 (LepidopteSresai,idaef)rom Japan Yutaka ARITAi) and Oleg G. GoRBuNov2) i)Zoological Laboratory, Faculty of Agriculture, Meijo University, Tempaku-ku, Nagoya,468 Japan 2]Institute for Problems of Ecology and Evolution, Russian Academy of Sciences, Leninsky 33,Moscow V-71,117071,Russia" pro.spekt Abstract A new host plant, Ilaederia scandens CRubiacea ies )recorded for fVbleona mbm Arita and Tosevski ,1992 from Okinawa-jima I. ,the RhykYus. R scandens is well-known as a host plant fer NL Perni xin Honshu, Shikoku and Kytishu. Key words Sesiidae, AJbkona mbra, host plant, Ryukyus. Albkona ntbra Arita and Tosevski, 1992 was recently describe dfrom three specimens (on emale and two females )taken with net on Amami-Ohshima and Okinawa-jima Islands t,he Ryukyus, Japan ,without any record of host plant (Tosevsk aind Arita ,1992 ; Arita,1994). During our collecting trip to Okinawa-jim aIsland in Jul y1994, we found a few damages of the stems and vines of thederia scandens (Rubiace aien)jure dby Sesiidae ,similar to Nbhona Perni h(rLeech 1,889) , A littl ebit later ,in the beginning of September, this time on Amami-Ohshima Island, we observed numerous young larvae on the same host plant, but having no chance to breed such young instar sef clearwing rnoths, we did not collect any.In the beginning of Januar y1995 ,Mr M. Kimura sent us several stems of R scandens with clearly visible galls derivin gfrom Okinawa-jima Island .Insid ethese galls, we found a few medium-sized larvae of Sesiidae .After keeping them in the laborator yat a temperature about 280C ,two females of Nbfeona rabva successfully emerged. Thus, i:iteder iscnandens (Rubiacea ei)s the host plant both of AJbkona rubra and of AJI Pemix, Larval biology of the second species is werl-known (Yano ,1961 ; Arita et al,, 1994) . At the present time, we can cite that the Iarval biology of N rubra is very similar to that of N Pernix in many detail s(shap eof larva lgall ,very short larva lgarlery, pupation taking place in a very tough, black cocoon), but it differ sclearly in that the larva of N rabra hibernate sin a larva lgallery (i na tough cocoon in N Pernix )and constructs such a tough cocoon only in spring. Material 1 (holotypeJ)a,pan,Ryukyu Is,Amami-Ohshima I.,Ukenson, examined. c7 Akatsuchiyama, 14. VI. 1978 ,Y. Arita leg ,(collect iofo nthe senior author (MUT)) ; 1 9, Japan,Ryukyu Is,Okinawa-jima I.,Shuri, 18. VI. 1970, M, Kinjo leg.(MUT); 2 4, Japan R,yukyu Is ,Okinawa-jima I, ,Naha-shi, Torr,],a r3i0,. XII. 1994, e-" '1. ,M. Kirr,]iura leg,,host Ptzederia (Rubiaceae>, 23,IV. 5.VI.1995 plant : scandens rnoth emerged and (MUT). ' Visitin gScholar of Zoological Laboratory ,Facurty of Agricultur eM,eijo University, Tempaku-ku, Nagoya, 468 Japan. NII-Electronic Library Service TThhee LLeepipdiopdteorpoltoegiroaollogical SSoooiceityety ooff JJaapapnan 104 Yutaka ARITA and Oleg G. GoRBuNov Fig.1. FreshIy emerged fema 】e of △娩 o翩 瓶 ゐ用 Arita and Tosevski,1992、 Ackmowledgements We wQuld like to express our cordial thanks to Mr M . Kimural Naha Okinawa, for his , aid during our collecting trip to Okinawa and collecting and 』ending the larvae of N . rubra to us . We are indebted to Dr T . Saito Osaka Mr Y . Araki the president of , , , Natural Environment Co. Ltd, Osaka and Mr M , Ikeda Tokyo for their generous help during our clearwing −moth sur,vey in ,Amami −Ohshima ,I. We ,also thank Dr S.1. Go1− ovatch , Institute for Problems of Ecology and Evolution Russian Academy of Sciences , , Moscow Russia, for his linguist ihcelp. , References − AA’rriittaa,, YY..,, 1In9o9m4.a taTh, eT .c laendarw iMng, I kmoetdhsa,1 9o9f4 J. apSaensi(Liedpa ieodf oJpatpearna:. Se}sセi4i0d卿a)e. (I1i5∂9l)a:r1c. −tL29ep(iind .J1a;p6a9ne8s1).e. rosevski, J. and Y . Ari亡a,1992. A Ilew spec 至es of dearwlrl gmoth Qf Nokona (Lepidoptera, Sesiida)e from the Ryukyus.ノ砂. f,劭 ’,60:619−623. Yano , K ,1961. Studies on six species of the genera Paranthrene IIUbncr and Con 〔4)ia HUbner from Japan(Lepidopter,a Aegeriida)e. f, Fac. Ag癬. K)ushu 鼠η勿.11:209236 , pls ll−21. 摘 要 アカス カシバ Nokona rubra Arita and Tosevski 1992 (鱗翅目 スカシバ ガ科)の食草と幼 虫生態の記録 (有田 豊 ・Oleg G. Gorbunov) , , 1994年7月に沖縄島でス カ シバ ガの採集調査を行っ た お り,アカ ネ科 (Rubiaceae)の ヘ ク ソカズ ラ (Paederia scandens )の ツル にス カシバ ガ類の蛹の脱皮殻のつ い た虫エ イを見っ けた.その蛹の 脱皮殻 の っ い た 虫エ イは ヒ メア トス カ シバ 1>bkona Pernix(Leech 1889)に酷似 して い た の で . , , 我々はアカスカシバ N .rubra Arita and Tosevski ,1992で ある と推定した.同年9月に も奄美大島 で も多くの小さい幼虫が入っ た虫エ イを見つ けたが,幼虫が小さい ため飼育は断念 した: 翌年 1995 年 1月に那覇市在住の木村正 明氏より同地のヘ ク ソカズラの虫エ イを送っ て もらい 飼育 した とこ ろ, 一 NNI工I工-EElleoetcrotniroonic LLiibrbarryary Service TThhee LLeepipdiopdteorpoltoegiroaollogical SSoooiceityety ooff JJaapapnan Host Plant and Larval Biology of Nokona mbra 105 予想通 りアカス カシバ が 2 ♀ 4月 23 日と6月5日に羽化 した,蛹化 に際 して はヒメア トス カシバ , 同様黒褐色の 鞘状の繭を作るが,ヒメア トス カシバ で は越冬前に作るの に対 して,ア カス カ シバ で は越冬後に繭を作っ た. (Acceptcd December 14 /995) , Pc/u0b0lgaitsahe d bByu ithled iLnegp2量−d1op7t eIrmoa旦b agischail 3S−cohco[meety , ofCh Juaop−aknu, Osaka,541 Japan , , , 一 NNI工I工-EElleoetcrotniroonic LLiibrbarryary Service