The LepidopterologicalSocietyLepidopterological Society of Japan

en t wt Trans. tepid, Soc, Jopan 59 (1): 83-86, January 2008

First record ofMetendothenia mesarotia (Meyrick) (, Tbrtricidae, ) from Japan, with descriptions of the immature stages

Ybshitsugu NAsui)* and Satoru ToMiNAGA!)

i' 153-2, Nakado, I'Iashimoto, Wakayama, 648-O023 Japan ii 251-3, Kochinda, Kochinda, Okinawa, 901-0401 Japan

Abstract In July 2005, 1arvae of tlVeietzdofhenia nzesarotFa (Meyrick) fceding on Dt}petes tnat- sumurae (Euphorbiaceae) were found in Chinen-son, Okina-,a Pref. The is added to the Japanese moth fauna, and descriptions of the last instar larva and pupa given for the first time. The adult, larva and pupa are illustrated,

Key words , Metendothenia mes'arotra (Meyrick), larva, pupa, Dr)petes mats"inurae, Japan.

The genus Metendothenia Diakonoff. 1973 is a small genus ef the tribe widely distributed in the world except Australia, New Zealand and South America, and seventeen species have been recorded globally (Brown, 2005), The genus has a valva with a setose lobe on the posterior end of the costa of thc valva i'n the male genitalia (Razowski, 1989).

Three species have hitherto been recorded from Japan (Kawabe, 1978, 1982, 1987; Jinbo, 2004-2007). In July 2005, one of us, Tbminaga discovered unfamiliar olethreuine larvae feeding on the leaves ofDixpetes matsumuiue (Euphorbiaceae). The emerged are referable to Metendthenia mesarotra (Meyrick), which previously was recorded from Java and the So]omon Is. The larvae were known to feed on MischocarpMs sundaicus (Sapindaceae) (Robinson et at., 2001), In the present paper, the immature stages arc de- scribed for the first time, with illustrations of adult, larva and pupa.

Metendothenia mesarotra (Meyrick) (Figs 1-8)

Arg.vroploce mesarotra Meyrick, 191 1: 273; Clarke, 1955: 203; Diakonoff, 1966: 20, fig. 65 < l' genitalia). Metendoihenia inesarotra: Diakonoff, 1973: 450, figs 667, 668, 67e, 731 (a" \ gcnitalia, wing venation); Robinson et aL, 2001: 264; Brown, 200S: 421. Arg.N.'roploce stibaropa Meyrick, 1933: 420; Clarke, 1955/ 295; Brown, 2005: 421. Olethreutes stibaropa: Clarke, 1958: 551, pl, 274, figs 3-3a (adult, X genitalia).

Diagnosis. This moth is a medium-sized tortricid (forewing expanse ll-15 mm) with a dark brown fbrewing with several leaden lines margined with milky white lines, a 1arge olive triangular patch en the middle of the dorsum and an irregular olive ocelloid patch (Figs 1-3). Scxual dirnorphism is pronounced; the male hind wing has a protruding anal roil, pointed distally, and a swollen dorsum between the marginal points of Cup and IA+2A (Fig, 1). The male genitalia are characterized by a slender uncus with several thick setae on the top and blade-shaped valva with a large curved lobe with many thick setae on the poste- rior end of the costa (Fig, 7). The female genitalia are characteriLed by a depressed oval sterigma with a ventral groove and a circular signum in the cerpus bursae (Fig. 8). The species is distinguishable from its congeners in Japan by the olive triangular patch on the dorsum and the blade-shaped valva with a pointed apcx.

"'Con'cspondingauthor:fwik6205@mb,infoweb,ne.jp

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Figs 1-6. Metendothenia mesarotra (Meyrick). 1. g' adult. 2, \ adult. 3, Adult, resting posture. 4. Mature lai'va. 5. Pupal case. 6. Pupa.

Last instar larva (Fig. 4). Length ]3-14 nun. Head somewhat longer than broad, brown; galea and stemmatal area black, adfrontal areas extending nearly to epicranial notch; six stemmata in a semi-circle; spinneret, short, tapering dista]ly, Body greenish brown, becom- ing reddish before pupating; integument spinulose. Prothoracic shield blackish brown. Prothoracic legs blackish brown, mid- and hind-thoracic legs concolorous with body. Pinacula pale, except dark brown pinacula of L and SV groups on prothorax. Setae pale. Anal plate concolorous with body. Small circular plate present antero-dorsally from ventral proleg on abdominal segments 3-6. Crochets on ventral prolegs in a uniordinal circle, 40-44, Anal fork present, five- or six-fOrked. Chaetotaxy: On head, Pl closer to AFI than to AF2, A2 distinctly closer to Al than to A3. 0n abdominal segments 1-7, SDI and SD2 antero-dorsad to spiracle, l. group trisetose, Ll and L2 on a common pinaculum. On ab- dominal segment 8, SD1 and SD2 antero-ventrad to spiracle. SV group on abdomina] seg- ments 1-9 consisting of 3, 3, 3, 3, 3, 3, 3, 2 and2 setae, respectively. On abdorninal seg- ment 9, D2s on a common pinaculum, D1 and SDI on a separate pinaculum, L group trise- tose on a common pinaculum.

Pupa (Fig. 6), Length about 6 mm. Color greenish brown. Frons somewhat protruding. Clypeus with two pairs of setae. Maxillae not reaching tips of prothoracic Iegs, Antennae reaching tips ofmesothoracic legs. Mesothoracic legs not reaching tips of forewings, Tips of metathoracic legs exposed. Forewings not reaching posterior margin of abdominal seg- ment 4. Hindwings concealed by fbrewings at anterior margin of abdominal segrnent 4. Spiracles slightly protruding. Proleg scars discemible en abdoininal segments 5 and 6. TXsvo pairs Qf hooked setae present on both sides of anus. Abdominal segment 1O somewhat

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85 Metendethenia mesarotra from Japan pti'

.t/ sx s, 't･1 tt 1+.Z':tt4i'

l.,tt.,).,.ou,･.,･g;.-.l-k..lj

Figs 7, 8, Genitalia of Metendothenia mesarotrez l'1'"1/'//'/'1''t"i'''t' ,,i,/1,ltl(･1,111･i,ii,,-,llit･,Iil,,i･i, (Meyrick). 7, g', genitalia slide no, YN1206. 8, t,tLet..t'.t'.-,"t",,.tt,".A,'t.T...t-,"--'t- slide no. v.'Y,'de'e.". t'-'tf. 9, YN1207. Sca]e line:O.5 vr-t.t".t.-,/,.., genitalia tttlttttttrtt

.aJ･J mm. gege8

protruding, with four pairs of hooked setae and spinules on the surface.

Material examined. Adult, JAPAN; Okinawa Pref.: Chjnen-son, Seifa-UtakL 283?, emerged 28. V-10. VI. 2005 (S. [[bminaga leg,), 5 84 9, emerged 20. VII-22. VIII. 2005 (Y Nasu leg.). All adults were reared from larvae feeding on Drypetes matsumurae, Larva. The same locality as adult, 2 exs, fixed on 9. VII. 2005 (IL Nasu leg.), Pupa, The same lo- cality as adult, 1 9, fixed on 19. VIL 2005 (Yl Nasu ]eg.) and 5 g pupal skins. AII speci- mens are in the private collection o'fY] Nasu.

Distribution. Java Is., Solomon Is,, Japan (Okinawa).

Host-plant. Sapindaceae: Mischocarpus sundaic"s Blume (Robinson et al., 2001); Euphorbiaceae: Drmpetes matsumL{rae (Koidz.) Kanehira.

Biology. In Okinawa, larvae span or fblded the leaves of Dr:ypetes matsumuvae, feeding on the surface, Under laboratory conditions, fully-grown larvae cut a leaf edge transversely at one or two points and folded it over, constructing a pupal case (Fig. 5). Pupation took place in the case. The rearing data suggest that the moth has several generations per year in Okinawa.

Remarks. Metendothenia organica (Meyrick, 1920) has been regarded as ajunior synonym of M. mesarotva (Diakonoff, 1973; Brown, 2005). This treatment was originally adopted by Diakonoff (1973); however, he (1982) later corrected this, concluding that M. onganica is an independent species because of difTerences in the structures of the female genitalia. Judging from the figure of female genitalia of M. organica by Diakonoff (1982), it is clearly distinguishable from those of M. mesarotiu in the sterigma and signum,

Acknowledgment

We thank Mr M. Higa, the South-east Botanical Gardens, Okinawa, for identification of the host plant.

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References

BrownJ ， W ．，2005． Tortriuidae（Lepidoptera）． In Landry ， B ．〔Ed ．）， WO 澀 ω αlogμ8 ρズlnsects 5； 1−74L Apollo Books ， Stenstrup． Clarke， J． E G ．，1955． Ca talogue of the 7Lx． t，）e Specin：en 、s cf Mic 厂olepidoptera in the British Museum （ノVat‘tral History）ゴθ∫c厂め8 面 y E4閲 アゼ 漉 y 厂敏 1．332 pp，，4pls． BMNH ， London ． ’ 」 958 ・Catalogue （ゾ 漉 θ Type Specimens Of Microlepi‘lopterCt加 the Britihh Museum （Natural ， Histor＞）described by Edward Me ．vrick 3．600 pp ．，298 pls， BMNH ， London ． DiakQnolf， A ．」 966 ． Notes on the Olethreutini and on some Tortricinae from the Papuan region in the Meyrlck Collection， British Museum ， with seleetion of lectotypes（LepiCloptera， Tortricidae）． Zoo ♂．、ノ餉 ． − （85）：3 85，pLl ． 1973 − − ， ，Tho SQuth Asiatic Olethreutini． Zo θ ’． Monvg 厂 ， Rijksmus． nat ．Hist．1： 1 700 ，1 15pls．

，1982，0n a collec 【ion of some families of MicrGlepidoptera ffom Sri Lanka（Ceylon）， Z ‘κ 丿置． Verh． − − （193）13 124，pls 1 18．

− − 亅hlbo， U ，2004 2007． ListM ノ；A checklist ｛）fJapanese〃moths ． http：〆／隔st両 ．mothprog ．com ’ 一 Kawabe ， A ．，1978． Mo 廿ユs of the Ogasawara （Bonin ）Tslands， palt l Tortricidae． Tinea 10： 163 互72． − 一 − 」 982．Tortricidae． In Inoue， H ． et al ．，ルfoths qブノap α n l； 62 151，2： ］58 璽81，pls 14 30，227， − 279 293 ．Kodansya ， Tokyo ，（ln Japancsc）． ，1987．Descriptjons of four ncw species of the Olethreut．inae（Lepidop しcra ：Tortricidae）fr〔｝ln Japan． − Tineα 12 （suppt ．）： 139 144． Meyrick， E ．，19n ． Revision of Australian Tortricina． P 厂oc ．ム廨 ．∫‘丿c ． N ．5． Wヒ1嬬 36；224−303．

1933 reprinted in l 969 ． Exotic Microlepidol， 4； − ， （ ） tera 353 448．E．W ．ClasseyLtd．，Hampton ． Razowski ，J．，1989． The genera of Tortricidae（Lepidoptera）． Part II： Palaearctic Olethreutinae，．4 α α 、 z ‘丿ot ． Cracov ．32 ： 107−328．

Robinson ， G ， S ，， Arkery， P ， R ．， Kitching，1． J．， Bcccaloni， G ． W ． alld L ． M ． Hernindez ，20〔〕1， Hostplaftts ’ Qf 惚 ハ40th and Buttenj7y C α terpillar s， （〜f the Oriental Region．744 pp ． The Natural History Museum and Southdene Sdn Bhd ， Kuala Lumpur ．

摘 要

日本新記録 の ツ ゲ モ ドキ ヒ メ ハ マ キ （新称 ）Metendothenia mes α rotra （Meyrick）と そ の 幼 生 期 ・ の 記載 （那 須義次 富永 智） ．一 2005年 7 月，第者 の 人富永 は 沖縄 県 知念 村 で ツ ゲ モ ドキ を摂 食 して い る 見慣 れ な い ヒ メ ハ マ キ ガ 幼 虫 を 発見 した 羽 化成 虫 を検討 した と こ ろ ，凵 本新記録 の ツ ゲ モ ドキ ヒ メ ハ マ キ （新称）Metendothenia ’ meh arotra （Meyrick ）で あ る こ と が 判 明 し た ．本 種 の 幼 生 期 の 形 態 が 初 め て 報告 され た ． ー ． 本種 は 口本 の 同属 の 種 と は ，前 翅 後 縁 中央 部 に 大 きな オ リ ブ色 の 三 角紋 を もつ こ と，バ ル バ 先端 が 尖 る こ と で 区別 で き る ，

分布 ．ジ ャ バ 島，ソ ロ モ ン 諸島，口本 （沖 縄 ）．

ロ 寄 主植 物 ，ム ク ジ科 ：Mischocarpus se〃ndaicus Blume （Robinsonet at ．，200 D ； ト ウ ダイ グサ科 ： ッ ゲ モ ド ’ キ Dr．ypetes m ‘ltsumurae （Koidz ．）Kancbira．

幼虫 は 寄主植物 の 葉 を合 わせ る か あ る い は 1 枚 の 葉 を折 り曲げ て ，そ の 中 に 潜 み ，葉 の 表面 を摂 食す る．沖縄 で はお そ ら く年数化す る と思 わ れ る ，

〔Accepted September 20，2007 ）

Published by the Lepidopterological Society ofJapan ， − − 5 2〔，， Motoyokoyuma 2， Hachi 〔’ji， Tokyo，192 0063 Japan

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