Two new species of Opiidae (Acari, Oribatida) from South Japan

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Edaphologia,pao.g7:1-7,Octobe3r0,201O 1

TvvoNew Specieosf Oppiidae(Acari,Oribatidaf)romSouthJapan

TokukoFajikawa

Ueminami 1346-3,Asagiri-choK,umamoto Pref,f 868-0423,

Receiye d2i3 Jul y2009; Accepted: 7 September 2009Jlrpan
Abstrac tTwo new oppiid species, dediory(ijr npagiasaatoensis n. sp, and Ramuselt a(Ramuse tkutmaa)ensi sn, sp,
were collected from Kumamoto Pref, southeen Japan.
Key words: A,fbdiayopp Oipapiida eO,ribati dRaa,musell a(Ratnuse lSlouat)h ,Japan, Tka, onew species.
Tiwe new oppiid species of Mledioayopt;i aand Ramusella (ro a)nd exobothridial (ex s)etae minutely pilose l;amellar
(Ramusel lwceriej collected fror nKurnamoto Pref, southern setae (le )i,nterlamel sleatrae (in )an,d sensill isparsely barbed
Japan .The notations of descriptg oannds figur eisn the work unilateral]y. Bothridi aopening dotsall yS.ensil lfiusiform,
are according to Balogh (198 3an)d Ohkubo (1996 T)h.e type barbed unilaterally. Refative length sof prodorsa sletae and
series is deposit eidn the National Museum of Nature and distanc ebsetween them: ss > ex > in > ro > le ;(}v- l> e()in-in)
Science T,okyo. > (le- i> n()le- >l e()ro-, (rr)o)-; l! (el)e-i #n )1.8.
IVbtogast eNre:arly as long as width. Crist arepresented by
MledioxJ,op pnaigaasatoensis n. sp. a broad transverse arched band of weakly chitinized behind
IJapanesename:Nagasato-tsubudani] notogastral setae c. Anterier margin of notogaster with smal]
(Fig 1.) protruding hurnera plroeesses ,Notogaste brearin gten pairs
of setae; all setae thin, sparsely barbed setifbrm; p-series
Material examined: Holotype (Femal (eN)SMT-A c12862) setae shorter than other setae; setae c inserte adnterior to
from ]itt ehru,mus and soil material at the garde nunder no- the transverse band, opposite to bothridi aN,otogastral
tilla gmaenner ofNagasato (32 el2 '5" N; 1300 54' 5" E; about later amalrgin with a periphera lring of ligh tareas of weak
195 m a,s.1. )in Asagiri-ch Kou,mamoto Prefectu rMea,y 13, chitinization, Lyrifissure sia aligned longitudinall pyostere-
2007, T. Ftijikaw a1 ;paratype (NSMTLA 1c2863 ,female )tihe lateral ltoy setae c; im aligned variability transversely or
same data as holotype, oblique]y antero-laterally to setae lp i;p aligned longitudinally
Etymology A:fte rthe loca lnarne ofsampling area, Nagasato. along notogastral outline latera ltlo ysetae hJ ;ih transversely-
Mbasurements and botly uppearanee: Female (n =t 1O) :Body posterolateral ltyo lm; ip sobliquely･postero-laterally to hs
Iengt h2,71 (291 3)07 um; width: 164 (17 11)86 "m. Body Relative distanc ebsetwee nnotogastral setae: (h3- h> 3()ia-ld)
color light-bro wTnh.e whole integumen stmooth, except fbr > (lm-i #m )do-i >p )(h2- h> 2()c- >e )(hi-hi).
the postero-lat emarragilns ofpropodosoma densel ygranulate, Vlintra lregion: Genita laperture pentagona ih,alf as Long
Prodors"m: Propodosoma pentagonal in outline because as interspa cbeetween genita land anal apertures (Fi gI.B).
of triangular rostrum. Rostrum bearin gmedian lobe-like Genlto-an aseltae: 612 3; setae smooth. Genita 1setae gJ, g2
prominence ;setae ro inserted beside sthe lobe, Setae ro and g3 insert endear the mid-ventral line s;etae g4 and gs near
insert eodn later amalrgins of the prominence extending in later amlargin of plates ;setae g6 near posterior margin of
front of rostrum. Weakly chjtinized wide transverse ridge plate sg;s and go remote from the remainder. Aggenital setae
present bctween insertion sof lamella (rte a)nd intcrlamellar inserte dlatero-poster itoo rtlhye genit a-lapertur eso,mewhat
(in s)etae, Setae ie nearer to setae in than to setae ro, Posterior nearer to genit aalperture than mid-distance between genitat
matgin ofprodorsum with broadly concave structure medially and anal apertures. Lyrifissur eisad aligned in paraanal
and two pair sof small stmctures besid ethe rnedial structure. positio na,lmost at the leve lof inserti oonf anal setae an2.
Exceptional liyn two specimens, those structures indistinct.Adanal setae adJ postanal, ad; adanal and adi preanal a;di
All prodorsa lsetae thin, rninute]y barbed setifbrm; rostral inserte djus ptostero-latera] tloy iad; adi far removed in front
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Fig. 1. Mediox.vmpia nagasatvensis n. sp. (Holoty NpSeMT-Ac 12862 9 ) ,A, Dorsa[ vjew; B, Ventra lview; C, Solenidial
region on tarsu sI; D, Princepa lsetae.
ro, re ,in, ex: Rostra ll,amella ri,nterLameE lexaobrot,hridial setae, respectively; ss: Sensillu sc;, ta ,im ,ip h,i.i,
pi.s :Dorsal setae; ih ,im, ip ,ips i,ad :Lyrifissures;. gaig.,t ian,J.2, adi.s: Genital ,aggenital, anal and adanal setae,
rcspcctively; a, m, h: Anterior ,medial and pesterio rsubcapitular setac, respectively; la-c ,2a, 3a-c, 4a-c :Epimcral
setae; e : Famulus on tarsus ef [eg I ;cv J.2: Solenid oina tarsus of le gI ;d iJ.2 /Solenidi oonn tibia ef]eg I ;ft" S:et aef
leg,
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TWo new species efOppiidae from South Japan 3
of anal aperture. The relative distarrc (eas:di-a >d (ic)rd2- >ad?) Ramusena (IRamuse tklutmaOensi sn. sp.
(ag-a >g ()ad2- a>d (ia)dt- aid i()ag-a d> i()adi-a SdtJe)rn.al [Japane nsaeme: Kumatsubudani]
groove sI and III distin cAtp.odemata III lost o;ther apodemata (Fig 2s &. 3)
distin cEtp.irnera lsetal formula:3-1-3-3; setae lb, Ic, 3b Material examined: Holotype (Femal (eN)SMT-A c12864)
and 4c sparse]y barbed ;others smooth. Diarthr isucbcapitulum from litt ehru,mus and soil material at the garde nunder no-
bearin g3 pair sofsmooth setae. tiL]age manner ofNagasato (32 102 '5" N; 1300 54' 5" E; about
Lqgs: A]] tars imonodactyle; claws bearin ga few remarkable 195 m a,s,1, )in Asagiri-ch oK,umamoto Prefecture ,Aug. 7,
dents ventral]y. Seta lfbrmul aof legs includin gfamulus 2007, T, Fiijikaw a1 ;paratype (Ferna ClNeS)MT-A c12865):
but excluding solenidia: 1 ( 1- 5 -2 - 4 - 19) ,II ( 1- 5 - the same data as holotype but May 10, 2007; 1 paratype
2-4 -1 2), III (2 -3-1 -3- 10) ,IV (1 -2-2-3- 10), (Femal (eN)SMTLA c12866) :the same data as holotyp e1;0
Solenidiota xI y(;1 - 2 - 2) ,JI (1 - 1 - 2) ,II I( 1- 1 - O), IV paratype sth:e same dat aas holotype but June 22, 2007, Sept.
(O -1 - O) .Solenid iwai I, w2 1 and th 2I short; cofI thick 20, 2007, Oct .15, 2007 and Jan .15, 2008; 1 paratyp ef:i'om
bacillifo rtmo ]; I and tu ? I, arising close together frem a small litte Th,umus and soil material at the chestnut plantati o(narea
apophysis in fron tof famulus ;wiI slightly longe rthan to2I; of about 10 are) ofYamae Mura (32 1"4' 57" N; 130e 45' 30"
a)2 Iabou ttwiee as long as famulu sfa;mulu sspiniform, E; about 252 m a,s,1,) in Kumamoto Prefectu rOec,t ,25, 2007,
Remarks: The new species has eharacters as rnember of S. Hashimoto ;3 paratyp efsrem litte rh,urnus and soil material
Mbdiosyoppi aSubias ,1989 (i nSubia s& Balogh, 1989) like at the Maruoka square of Yamae Mura (32 1'5 '19" N; 1300
fusifl) smeinsilli ,notogaster with humera lprocesse ssi,x pairs 45'31" E; about 284 m a.s,1. )in Kumamoto Prefectur Oec,t,
of genit asletae, postanal setae adl and paraanal lyrifissures25, 2007, S. Hashimoto.
iad, Accordin gto Subia s(200 4an)d FLijika w(a200 [32004]),Measurements and bo`ly mppearanc eB:ody lengt h2,36 -236
six species have been known as members of the genus. The um; width: 114 (11 91)29 um. Body color light-yelt Tohwe.
new species diffe rcsongeners by relative distane easmong whole integurne nstmooth, except fo rthe postero-lateral
setae ro, le and in: (ro- l1 e()le- i#n )1.8 ,forr nof sensilli: marginsofprepodosomadenselygranulate.
fusifbr mbarbed unilaterally, lengt hof setae in, number of Prodorsum: Rostrur nrather truncate; rostral setae (ro)
genit asletae and presenc eor absence of transvers eridge on genicula tteh,eir alveoli near each other, extending in fron tof
prodorsum. rostum for a distan ceequal to halfthe i1rength.
Key to the species of dedioayoppia Proxima lpar tof rostral setae sparsely barbed ; distally
1 Five pairs ofgenital setae ･･･'''''''････････････････････b･a'r･b-e･ d･u･ni･t･at2eralLy. Lamellar setae (le or)iginate nearer to
- Six pair sofgenita] setae ･･････'''''''''''･''･'･'･･ ･4･･-･･i･n･t'e'rl'a'm'e'l'l'a rsetae (i nt)han to setae ro. A pair of indistinct
2 lnterlamell asretae longe trhan lamella sretae ftifro wrusnning from the later asilde of insertio onfs setae le
''''''''''''''''''''' M'' 'h'a"n'e'a't' aF"a-jikawa, 2003 [2O04] to bothridi aT.ransverse r{dge absent anterior nor posterior
-Interlamell saertae shorter than tarneHa rsetae ･･･････････････t3o setae le .Three pair sof sigillae presen btetween setae in.
3 Rostrum sharply pointed ･'･' 'M' actirostrata (Aok i19,83) Latera lregion outside fumows with many ligh tareas of weak
- Rostrum not sharply pointe d'''' 'MI' yuwana (Aok i19,83) chitinisation. Seta ele and in thick ,sparsely pilos eB,othridia
4 Interlarnel lsaertae longer than lamella rsetae '･ ･M/ opening lateral lSye,nsil lciomposed ofa thin stern and an
nagasatoensls n, sp, expanded head bearin gpectination sE.xobothridi asletae
- Interlamell asretae shorter than lamella rsetae ････････'''''''th5in ,sparsely barbed R.elativ leength osf prodors asletae and
5 Prodorsum with costulae ''''''''' 'M'[' 'ac'u'ta (Aok i19,84) distanc ebsetwee nthem: ss > tv > in > le > ex; (ex- e> x()ro-le)
-Prodorsumwithoutcostu1 ae･''''''･'････-･-･･････････････'''''･6 > <te- iin )an-i >n )(le- >l e()ro-ro),
6 Relativ deistanc e(sro- l1<el)e-i n#) 1. 1･･ ･M mastigohora IVotogaste rE:lliptic ailn form, with rounded anterior
(Golosov 1a9,70) margin. Nine pair sof setae short barbed; setae c absent.
- Relativ edistanc e(srv- lf (el)e- i# n1). 6'''''' M'' 'nagQyae Seta ela situated behin dsetae lm, Notogastral latera lmargin
Ohkubo,t991 light
wjth a peripheral ring of areas of weak chitinization.
Lyrifissure isa aligned longitudina latl ythe anterior margin;
im aligned transversely or somewhat obliquely in fron tof
setae hs ;ih transversel yanterior-laterally to im; ip oblique]y
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Fig. 2. Ramusella (Raneuse klulmaae)nsis n, sp, (Holoty NpSeMTLAc 12864 S ) .Dorsal yiew.
f'o, le ,in, ex: Rostral l,amell airn,terlame lclxoaborth,ridial setae, respectively; ss: SensiLlus;
ia, lm, lp ,hJ. sp.i.s D:orsal setae; ia, im, ip i,ps i,ad: tyrifissures
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Two new species orOppiidae ftoT Snouth Japan 5
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Fig. 3. Ramuseila (RamuseU kau)maenvi ns. sp. (Holoty NpSeMTLAc 12864 ? ).
A. Ventra lview, B. Solenidi arlegion on tarsus I; C. Right trochanter IH.
iad :Lyrifissure gsi;.s ,ag, ani.2, adi.j: Genita1 ,aggenital, anal and adanal
setae, respectivery; a, m, h: Anterior m,edial and posterio srubcapitular setae,
respectively; la-c ,2a, 3a-c ,4a-c: Epimera] setae; e: Famulus on tarsus of
leg I; tui.2: Solenidio non tarsu sof leg I ;d ii.2: Sotenidio non tibia ofleg l;
ft ": Seta ofleg,
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6 TokukoFLijikawa

postero-latera] ltyo setae p2; ip sweakly obliqually postero- lyrjfissur eism, Therefbr eO. todyoensis should be treate das
]aterall tyo h3 ,Relativ edistanc ebsetween notogastral setae: an indepemde nstpecies as pointed out by Ohlaib oet al. (1993).
(la- l> a()ip- l> p()la- i> p()ip- h> 2()h2-h2)･ The presen tspecies diffe rfsrom other congeners by absence
Ventral region: Genital aperture rectangular, about half as oftransverse Tidge in larnell raegrien, situation ofnotogastral
long as interspa cbeetween gcnit aalnd anal apertures (Fig. setae la ,form of rostral setae, relative lengt hof ]amell aarnd
3A). Genito-ana sletae: 5 I 2 3. Genital (g )and aggenital interlamel lseatrae, directi oofn Eyrifiss uirme, sand lengt hof
(ag s)etae smooth; gJ and g2 insert eodn inne rmargin ofeach genita lsetae.
plate g;3 and g4 near later amalrgin of plates ;gs on posterior
Acknowledgments
margin; ag insertcd almost mid-distance between genital
and anal apertures. Anal (an a)nd adanal (ac sietjae sparsely The author wishes to thank Mr. S. Hashimoto of Yamae
barbe dun"aterally; adanal setae adi postanal ,adi adanal and Mura who kindl ygave her all specimens and Emeritu sPro[
ads preanal ;Lyrifissur ieasd aligned in paraana lposition, Dn Y, Nakamura of Ehime Universit wyho, kindl yhelpe dher
at the leve ]of almost mid-distance between setae ani and in the extracting ofmites.
an2. Seta ead? insert epdostero-latera] ltyo iad ,The relative
re g
distance s(:adi- a>d (ia)di- a>d (ia)g-c l>g ()ag-a d;i )(aab-
adD # (adJ- a>d (]a)di-a dS,t)e.rna glroove sand apodemata asJllt h(rf- 868-0423 fi.`..ptMbl eps gt n}K )wtr h1346 es
distin cetxcept for los tapodemata III (Fi g3.A), Epimerat tua)3):hy f6r=F}a)=rant,
setal formula :3 - 1 - 3 - 3; setae 3c and 4c sparsely barbed tl -ff "J' F i), v' 5S ; (MM) ,Wbdiox],ojlpia nagascttoensis n,
unilateraly} others smooth, Diarthr iscubcapitLLIum bearin g3 sp. eF,e.2ist gve al )dMirtdists Ee)y,17 7'Y= (sut sRa)musella
pair sofsetae; a and h smooth; m sparsely barbed unilateral]y. (RamuseU kar)tmaensi ns. sp. e fie.Z tsh ce) svgae D iU t' I 1[O:Ndii 6
Legs: All tars imonodactyle. Seta lforrnu leaf leg sincluding ptkL'ti･dW L.k
famulu sbut exc]ud{ng solenidia: I (1 - 5 - ･2･ - 4 - 20) ,II (1
-5-2-4-12), III(2-3-1-3-12), IV (1-2-2-3 References

- 10) .Solenidiota xIy (;1 - 2 - 2) ,II (1 - 1 - -2) ,ll l(1 - 1 Aoki, J.-1 .1,974, A new species of oribatid mite fbund in the
- O) ,IV (O -･ 1 - O) .Famulus on tarsus I minute baci]liform midd]e ef Tokyo. Bulleti nofth eNtitiona Stcience Adit,s'eum,
situated postero-later atlo lsyolenidon tui I .Solenido ndiJ 7bkyo ,17: 283-285.
I bacillifor mt;u2I setiform, longe rthan tui I, inserted Aoki, J.-I ,1,9g3. Some new spccies efOppiid mites from south
antero-laterally to caJ l ;seta inserte dposterio tro tuJ Japan (Oribati dOpap:iidae). International ,foblrn aolf
.fr"
I and postero-later aflalmyulus .On tibia l, solenidia di iI Acarology 9; 165-172.
contiguous to di2 I(Fi g3.B), Trochanter Il lbearin gtwo small Aoki, J,-T. ,]984. New and unrecorded orjbatjd mites from
prQjectio (nsFi g3C.). Kanagawa, Central Japan (I )B.uUetin of the Institut eqf
Remarks: The present specimens have main characters of the Environmentat Stienc aend fechnologr Llbkohama IVationat
genus Ramuseila Hafnmer ,1962 such as rostral setae knee- Univensit yiJ:107-118,
bent situated close togetber ,3 pair sof spots at interlamellarBalogh, J. ,1983. A parti aTelvision of the Oppiidac Grandjean,
region, 9 pajr sof notogastral setae, 5 pair sof genita lsetae, 1954 (Acari:Oribat eAcit)a. Zoologica Academiae
and paraana llyrifissu rieasd. The presen tspecimens are Scientiart iHmbengaricae 2,9: 1 -79.
similar to CLppi taokyoensi sAoki, 1974 which has been treated Fujikawa, T., 2003[20e4]. Nineteen new species from the
as a synonym of Ramusetta (Ramuser Xchaule)vmaniensis Shirakami-san cWhoirld Hcritag eArea, Nippon (Aeari:
sengbuschi Hammer, 1968 by Subias (l980 a)nd late rwhich Oribatida).Acarologia,44:97-131.
is treated as a synonym of R. (R, )sengbttschi Hamrner, 1968 Golosova, L. D., 1970 ,New specics of Oribati d(sAeariforrnes,
by Subias (2004 )A,ccording to the original descriptions, Oribatei )from the south Primorye and the Kuril Tsalands,
R. (R. )chulumaniensis (Hamme rI,958) di'ff efrrsom other ZoologicalJbblrnal,49:694-701.
congeners by fbrm of lamella rregion and rostral setae. O. FIammer, M,, 1958, Investigatio nosn the oribatid fauna of thc
toloJoens idsiffer sfrom R. (R. )sengbuschi by forr nof rostral Andes Mountains I .The Argentine and Bolivia .Bioto.ais'ke
setae, relative lengths of lamellar and interlamella rsetae, Sk"ijle rucigivet qfDet Kongetige Danske lt'denskabernes
presenc eor absence of notogastral setae e, and directi oonf Selskab ,10: 1-129,
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Two new species ofOppiidae from South Japan 7
Hammer, M., 1962. Investigatio nosn the oribatid fauna of the Ohlcubo ,N., Aoki, J.-I .an,d Hu, S.-h. ,1993. 0ribati dmites frem
Andcs Mountains III .Chile ,Biologisk eS)b'ij} uecrigivet of tropical fores tesf MLnnan Proyince in China. III .Fami]y
Det Kbngelige Danske vadonskaberne Ssetskah ,13: 1-96. Oppiidae (Par 1t) ,Jburnal qf TVi eAcarologica lSociety qf'
Hammer, M.,1968. Investigatio nens the oribatid fauna ofNew Japan, 2: 83-90.
Zealand with a comparison between the or{batid fauna Subfas, L. S., 1980. 0ppiidae de} cornp]ejo clavipectinata-
of Ncw Zealan dand that of the Andes Mountains ,South insculp t(aAcari dOrai,batid EaO)S., 54: 281-313,
Arnerica .Biotogiske SkrCfie rucigivet c{fDet Kongelige Subias, L. S. and Balogh, ?. ,1989. Identificatj okneys to the
Danske "denskabemes Selskab ,16: 1-96 ,pls .I-XXXIII. gener aof Oppiidae Grandjean ,1951 (Acar Oir:ibatei )A.cta
Ohkubo, N., 1 991 , A new species of Mladioayqru? iSaubia s(Acari: Zbotogica llungarica 3,5: 355-412.
Oribatei f)rem Japan .Aeta Araehnologica 4,0: 69-74. S u b i a s , L , S . , 2 0 0 4 . L is ta'do Sistematico, sinonimico y
Ohkubo,N,,l996.Some Oppiid (Acari:Oribatida)BiegeograficdoelosAcarosOribatido(sAcaritbrmes,
species
from Chichljjrn alslan din the Bonjn Islands w,ith notes on Oribatida d)el Mundo (1758-20 0G2ra)e.tlsi a6,0: 3-305.
morphological terms of Oppiida eA.caroiogi 3a7, :229-245.
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