A natural hybrid between Teinopalpus imperialis and T. aureus (Lepidoptera, Papilionidae) from northern Laos

3 Pages·2002·0.38 MB·

TThhee LLeepipdiopdteorpoltoegircaollSoocgieitycal Society ooff JJaapapnan
matma T)"ans,kpieSnoa Japan 53(2):I10-tl2, March 2002

A natura] hybrid between 1leinopaip uismpen'alt sand Z aureus
(LepidoptPearpail,ionidae)from Laos
northern
JiroUEHARAi) Akio MAsuT2)
and
i)326, Iwai,Hodogaya, Yokohama, Kanagawa, 240-O023 Japan

Z}# 404,2-13-9H,imon'ya,Meguro, Tokyo, 152-OO03Japan

Abstract A natural hybrid between Tl?inopaipus inu?eria taZnds 71 aureus is reported fbr the
fir sttime fi'om northern Laos where they are sympatric. In this spe ¢imen the wing markings as
well as some other feature esxhibit exactly intermedia tceharact ebrestween the two species.
Key vvords Papilienjdae, Tleinopaipus ,1lainopaipus imperiads, 7leinopaipus auretLs, northern
Laos, natural hybrid.
Introduction
It is well known that hybridizatio onccurs arnong closely allied species. As to lepidopterous
species, because there have been a number of specimens collected by many enthusiasts for
hundreds of years ,many reports are known of natural or artificial hybridizatio enven for the
1arges btirdwing s(Straatm a19n7,6) and the palaearct iacpollos (Yag i& Omoto, 2oo1) ,for
lnstance.
Since the discover yof 7leiopaipu simperiads Hope, I843 and Z aureus (Mel l1,923) from
Xam Neua, nombern Laos (Masui & Uehara, 1999, 2000), we have attempted close examina-
tions of the 7leinopaip uspsecimens from the localj ttyo understand individua lvariations of
the two species. To our surprise, quite incidental loyn,e of the 71?inopaip uspsecimens is an
intermedi aitn eappearance between both species, which convinces us of the natural hybridiza-
tion.
Specimen examined, ] di i(Fig 3s-4) ,Xam Neua, northern Laos, July 4, 1999,
The above-mentioned hybrid (6 i) along with the typical specimens (6n ya)l,1 from the same
loca!it ayr,e shown in Figs 1-6 . The external characters ofthe hybrid compared with thetwo
fo11ows.
species are as
'
Wing shape and size. Generall ysimilar to imperiaiZg e,specially in the acute fbrewing apex.
Length of fbrewing 54 mm, which fall swithin the normal range of the two species; in the
figure dspecimens, lengt hof forewing 55 mm in auretLs (Fig s1-2) and 52 mm in imperiaiZs
(Fig5s-6).

Wing markings. 1) Forewing upperside. Simila rto imperial is.2) Forewing underside.
Ground color pale brown, with basal one-third tinged wjth black , Markings in the outer
area similar to impen'al Zwyh,ile those in the basal area similar to aureus 3) Hindwing.
Median yellow marking intermediat eboth in size and in shape, but somewhat similar to
aureus in narrowing tewards costa. Marginal yellow lunule sdeveloped as in aureus 4)
Paler area of tip of hindwing tai lpale orange and ca 3.5 mm in length ;both coloration and
lengt hintermediat beetween aureus (yell oanwd ca 2.5 mm in length )and imperiaz a(sdeep
orange and ca 5.0 mm in length).
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TThhee LLeepipdiopdteorpoltoegircaollSoocgieitycal Society oofJfap anJapan
A Natural Hybrid between7leinqpaipus imperiatt sand Taureus 111
1 2
3 4
5 .t.t tt]tt6
Figs 1-6. 7leinopaipus specimens t'rom Xam Neua, northern Laos. 1--2.Tl aureus, tii ,19. iii,
2000(1: upperside,2: underside). 3-4. Naturalhybrid ,if,4 .vii.1999 (3 :upperside, 4:
underside), 5-6. 71 imperiaiZ dsn,,29, viii, 2000 (5 :upperside, 6:underside).
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TThhee　 LLeepipdiopdteorpoltoegiroaollogical　 SSoooiceityety 　ooff　 JJaapapnan
H2 Jiro　UEHARA　and 　Akio　MAsuI
Abdemen ．　Coloratio　nof 　hair　on　ventral　surface 　yellbw　in　auret｛s　green　in吻ρθ磁 廊　and
， ，
in．termediatebetweenthem inthe hybrid．

Antennae ，　 Unifbrmly　dark　brown　in　color 　while 　in　aureus 　antenna 　uniR ）rmly 　blac　kand
，
in碗卿 騰 unib   ly　brown．
Discussion
1n　Xam 　Neua 　northern 　Laos　the　locali　wtheyre 　this　hybrid　was 　collected，τ 〃nperialtS 　and
， ，
Zaureus　are　distribut　esdympatrically 　and 　it　was 　reported 　that　they　are　only 　temporally
segregated （Masui ＆ Uehara 2000）．　 Th，is　suggests 　that　the　occurrence 　of　natural 　hybridiz−a
，
tion　is　highly　possibl．　e The 　discover　yof 　this　hybrid　specimen 　convinces 　us　thatτ 加1μ〜吻 必
and 　T．　aureus 　are　very 　closely 　related　species ．
Acknowledgments
We 　would 　like　to　express 　our 　sincere 　thanks 　to　Messrs　K．　Yazaki，　Hachiojj　and 　H．
，
Yoshimoto，　Tokyo，　ft）r　their　advice 　and 　assistance 　fbr　the　preparation　of　the　study ．
References
Masui　A．＆ J．　Uehara ，］999．　 Butterfl　ireecsently 　collected 　from　Lao　P．　D ．　R．（5）．　 Gekkan−Mushi （338）；
　　　18−23 （in　Japanese　with 　English　summary ）．
　　　　　　，2QOO．　ButterHies　recently 　co11  ted 丘01n 　Lao　P．　D ．　R．の．　Gekkan−Mushi （352）：2−3 （jn
　　　亅apanese 　with 　English　summary ）．
Straatma，　nR ，1976．　 Hybridisatio　nof 　bjrdwing　butterfli（eLsepidopter：aPapilionida）ein　Papua　New
　　　Guinea．　Trans．　leρid．　Sqc．ノ4ρ砌 27： 156−162．
Yagi 　T．＆ K ．　Omoto ，200　L　Mol   ular 　ident且ication 　of　maternal 　species 　of　llatural　hybrids　between
，
　　　Parna∬1  ∫　citrinarius　and 」P．　stubbendoi プガ（Lepidopter，a　Papilionida）ein　HQkkaido・　Trans．　lepi．d
　　　Soe．　」と4叱an　52：　163−167，
摘 要
北ラオスで採集 された テン グアゲハ とオウゴ ンテ ングアゲハ の 自然雑交個体に つ い て （上原二
・
郎 増井暁夫）
テ ン グアゲハ ，TeinopalPUS　imperialisとオ ウゴ ン テン グアゲハ ．　 T　aureUS は北ラオス のサム ヌアに混
棲分布す る こ とが知 られ る．今般，サム ヌアで採集された TeinoρalPUS 　maの 1個体 を検 した とこ ろ，
両種の中間的な外観を有し，自然雑交によ り生 じた もの と判断されたので記録する．本個体の存在は，
両種の近縁性を示す もの と考えられる．
〔Accepted　D   ember 　23，2001）
Publishe　dby　the　Lepidopterologic　aSlociet　yof　Japan，
5−20，MQtQyokoyama 2，Hachioji，Tokyo，192−0063Japan

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