Two new species of Sabacon from Sichuan Province, China (Arachnida: Opiliones: Sabaconidae)

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ZOOLOGICAL SCIENCE 10: 155-159 (1993) @ 1993 Zoological Society ef Japan
Two NewSpecies Sabaconfrom Province,China
of
(ArachnidOap:ilionesS:aSbiacchounaindae)

NoBuo TsuRusAKii and DAxiANG SoNG2
'Department ofBiotogy,fucuttyofEducation,7bttohUitiversi7tbyt,tori,

680 Jcrpan ,and 2Ihstitute of Zqotogy, Academia Sinica,
19 Zhongguancun Lu, Haitie nB,eijing ,China
ABSTRACT-Two new species of the genus Sabaeon, S, martensi n, sp. and S. gonggashan n. sp, are
described based on the specimens collected from Mt. Gong-ga-shan of the Da-xue-sha nMountains,
Sichua nProvince, southern China .The two species are similar to each other and to some species of the
genus from Nepal-Himalayas (S .chometongrnae, S. dhautagir ian,d S. unicornis) and Japan (S,
dentipalpe and S, imatnurai) in having dorsolatera lspurs on the fixed finger sof male chelicerae.
Gong-ga-shanK,angding, Sichuan Province,Chi-

INTRODUCTION na, 2 September 1982,Zhang Xue-zhongleg.

The genus Sabacon (Sabaconi Idsacehy,ropsali- Measurement s(i nmm), Male holotype: cepha-
doidea ,Palpatore si)s a group of soil harvestmen, lethorax ,O.96 long ,total body length 2.3.
with about 40 species, and is disjunctive lfyound in Length of palp and legs :Palp (femurlpatellaf
the Holarctic regions. The distributi ocnovers the tibialtarsu s;total): O.88fO.98fl.1010.5 0;3.46.
eastern (2 spp.) and western areas (5 plus some Legs (femur/patella/tibialmeta ttoa-rsusltarsus;
spp.) of North America ( 7described spp, in total tal): Leg I: 1,7510.79fl.78/2.4012,4 09;,12 .Leg
[5 ,1], Cokendolpher pers. comm., 1992), southern II : 2.57fO.99f2.80/3.7614.1 0;14.22 , Leg III:
part of Europe (6 spp. [3] )th,e Nepal-Himalayas 1.6810.7811,6012.7312.8 09;.59, Leg IV: 2,32/
(7 spp. [2] )Si,beri a(2 spp. [4] )an,d East Asia O.9412.24/3.6013.72 ;12.82.
includin gJapan (1 0spp. [6 ,7]) . From China, Male, Body (Fi gIA.-B) relatively small, poorly
however, only one species, Sabacon okadai Suzu- sclerotized. Eye tubercle low, slightly canalicu-
ki, has been recorded [6]. late ,unarmed. Second thoracic tergite with pair of
During an examination of the opilionids col- postocula rspines. Abdominal tergites represented
lecte dfrom the Da-xue-shan Mountains, Sichuan by small, weakly sclerotized plate s (scutum
Province, southern China, we found two unde- laminatumfdissectum) with few scattered setae.
scribed species of the genus, Description sof the Abdominal sternites poorly sclerotized, with mi-
species will be presente dhere. nute black setae, Chelicera (Fi gI.C-E) with basal
All the specimens examined are deposited in the article fiat ,dorsall ynot elevated; fixed finge rdor-
collection of the Institut eof Zoology, Academia solateraly with a conspicuous black spur, ventraliy
.Sinica ,Beijing. with a small knob. Palp (Fi gIF,) relatively slen-
der, patell adistatl ywith row of six ventromesal
teeth.
Genus Sabacon Simon, 1879
Penis (Fi g2.) 2.13 mm long (includ gilnangs),
S a b a c o(n Ftniarg t1esn-s.2i) n. sp. Oro.w16 momf se vweidreal adte bnatsiec; lp eiogsnm eeancthed s,i dlea.teral lwyith a
Materiat ,Male holotype, West slope of Mt. Cotoratio n: Venter brownish white, with cexae,
abdominal sclerites pale brown; dorsum brownish
Accepted October 15, 1992 white with tergites and cephalothorax brown. Eye
Receive dSeptember 17, 1992 tubercl edark brown, Chelicerae ,palps and legs
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156 N. TsuRusAKIAND D, SoNG

:i;m.,
"''+"tt::=t"="""'
IS,'tt.,..'s,P"rst'.:.:"I/xkl1t).,"";'-,.::..11'..t.'s-ttg''i.="1z.)-..:t,tt;

FiG. 1. Sabacon martensi n. sp., holotyp emale, A-B; Lateral (A) and dorsa l(B )views of body. Dorsal (C),
ectal (D) ,and mesal (E )views of lef tchelicera. F: Mesal view of lef tpalp. Scales=1 mm.C-E:
lightbrown.

Flemale .Unknown.
anq /ltl Distribut i: oKnnown only from the type locality.
Etymology, The specific epithet is given in honor
of Prof. Jochen Martens, Mainz, Germany, for his
em i ne n t 'contributions to the systematics of Saba-
/ij.3..･
con specles.

Remarks. This species has affinities with some
/11/･,/･ species of the genus from the Nepal-Himalayas
11i･/1/･ and Japan (S .chomotongmae, S. dhaulagir i,and
i' S, dentipai peet,c.). These species share a dorso-
l/･.. latera lspur on both chelicerae and a similar mor-
ill/ phology in the penes .The new species, however,
//'" can be easily distinguishe dfrom any other de-
scribed species of the genus ,by its penis having a ,
row of denticle son both latera lmargins of the
shaft.
A
HG. 2. Sabacon martensi n. sp,, holotype maLe, A-B:
Ventral and latera lviews of penis . C-E: Ventral
c DE (C) ,latera l(D) ,and dorsal (E) views of dista lpart
of penis. Scales==1 mm for A-B, O.5 mm for C-E.
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NewHarvestmen fromChina 157
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IR' :'. / t/L/,t.i'g
:t /mp .-
tt ttt/.
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k' ,.-･,,."..
gtttttttt, ･, . ,i il ililllillilliliili･i･'
;.:.tt ･･..tllllg/11,,.tt,,,/,

.,.tSl-' 'f"i1 1'S･/i･iliji･,.･･'1i1･,1,11;'.i:'.1l'ill',1,iIlllil:iii,"i''1g''''"tl'.//'iF.r,G1.13g. ,,Syabacongonggashann.sp.Dorsal
" ' x";':,'//il//"'ill'1･1' view of body. A, holotype male; B,
,li.･i,il,,,/,,ii･1ii･l'Illl･?1,lil･1-l-:,･,,･,.i-, paratyp efemale ,Scale=1 mm.
' ' '1 t: -, t, , ,.t1.,/,,/,/,t,,/t･l-1,,,ili,1,
'".-'.',"tt'xS.,b'..x,.'l"-.-,.,,,',
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FIG,4 . Sabacon gonggashan n, sp. A,
Anterior ventral surface of male
(holoty pbeo)dy, B-C: Mesal (B )and
ectal (C )views of male lef tchelicera.
D, Mesal view of male lef tpalp ,E-F:
Mesal (E) and ectal (F )views of
female (paraty cpheelic)era. G, Mesal
B vl'e wmm,of femal elef tpalp, Scale=1
c
- A
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158 N. TsuRusAKI AND D. SoNG
Sabacon
gonggashan n. sp.
(Fig 3s-.5) /t
Material .Male holotype, male paratyp eand two
female paratypes ,West slope ef Mt. Gong-ga-
shan, Kangding, Sichuan Province, China, 2 /
September 1982, Zhang Xue-zhong leg. 1/v x
Measurements (i nmm). Male holotype (on eef ,tt Jf'11X
the female paratypes in parentheses) :cephalotho- kl' Lltti lt.,,.
1,50(1.60lo)ng,2.1 (2.67)
rax wide; abdornen
2.18 (2,8 2wi)de; total body length 4.32 (4.56). ltltl,hsiil,,lt:ll･,lr.f)･
Length of palp and legs :Palp (FcfPalTifTa;
total):1,05Xl.0611.12fO.563;.79(1.52fl.45fl.74f

O.75;5,46).Legs(FelPafTilMtlTa;toLteagIl:): i,,.
g
1.83XO,89/1,6612.4612.4 19;,25 (le gI sto III ef the
paratype female measured are absent). Leg II: "
2,16/1.0012.20/3.0813,881;2.32, Leg III:1.80!

O.80/1.5 612.72/2.7 29;.6 . Leg IV: 2.4011.01/ ,
1.95/3.54/3.90;12,8(2.52/O.95/2.163.1232;.70f

12,55),
Male. Body (Fi g3.A) poorly sclerotized, Eye A D c fl ff
tubercle low, slightly canaliculate above, unarmed.
Second thoracic tergite with pair of postocular
spines. Abdominal tergite sslightly sclerotized, E
few disposedin
with scattered setae, a manner RG,5. Sabacon gonggashan n. sp. Ventral (A) and
"scutum laminatum", Abdominal sternites weakly later a(lB )views of penis (holoty pmaele). C-D:
sclerotized, with few scattered setae. Genital Ventral and latera lviews of dista plart of the penis.
operculum pointed anteriorly, set with numerous E, Ventral view of ovipositor (parat yfpemeale).
black setae (Fi g4A.). Chelicera (Fig 4sB.-C) with Scal e=:1 rnm for A-B, E, and O.5 mm for C-D,
three slit sensilla on ectal surface of basa lsegment;
with a black cone-shaped spur on apico-ectal sur-
face of fixed finger . Palp (Fig.4 Dre)latively short setae. Coloratio nas in male, but with
slender; patell awith fiv elarge ventromesal teeth tergites brown.
followed by a few sinall denticle sL.egs short, with Distributio nK.nown only from the type locality,
fine setae, Etymotogy, The specific epithet is a noun in
Penis (Fig.5A -D2,)87 rnm long, simple and apposMon.
slender, lateral lywith a pair of setae near the Remarks. This species is characterized by its
apical end of the shaft. simple and elongate penis. The presence of apico-
Coloration :Cephalothorax yellowis hbrown, ectal spurs on the fixed finge rosf male chelicerae
marked blackis hbrown near margins, eye tubercle suggests it sclose affinity with S. martensi from the
brown, abdominal tergites ligh tbrown. Venter same mountain; some Nepal-Himalayan congen-
yellowis hwhite, lightl myottled brown. ers, such as Sabacon chomolongmae, S, dha"lagiri,
Flemale .Similar to male but with tergite rsepre- S. unicornts [2 ]an;d some Japanese counterparts
sented by small rnedian sclerites (Fi g3.B). Che- belonging to the dentipaipe-grou p[7 l]ik eS, denti-
licer awithout an apico-ectal spur on fixed finger paipe and S. imamurai, Phylogeneti cpreximity to
(Fi g4E.-F), Palp (Fi g4G.) slender, without ven- the dentipaipe-grou p,a group which was recog-
tra ldenticl eosn patella ,Ovipositer (Fig.5E),nized by Suzuki [7 ]within Japanese species of
2.09 mm long, elongate, scattered with numerous Sabacon ,is also inferre dfrom its elongate oviposi-
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New Harvestmenfrom China 159
tor with numerous setae.Although the present Ischyropsalididae ).Senckenbergiana bioi 53: 307-
species, as well as S. martensi, were found on the 323.3
wtehset t wsolo psepe coifes M ta.re G osynmpga-trgiac.-sha ni,t is uncertain if MSniaadrbataeec)no.sn S eSJ nicm(ko1en9n b81e83 r7)g9Ei ua(rnoAap rabiaisoccl hh6e3n : iA 2Ord6pt5aie-ln:2i 9od6ne.ers :GSaatbtaucnog-
4 Martens J(1989)SibirischeArten derGattungSaba-

ACKNOWLEDGMENT con Simon 1879 (Arachni dOpai:lione sS:abaconi-
dae) .Senckenbergian baio l69: 369-377,
We are gratefu 1to Mr. James C. Cokendolpher, 5 Shear WA (1975 )The opilionid genera Sabacen and
Lubbock, Texas ,for his review of the draft, 7bmicomerus in Arnerica (Opilio nTreosgu,loidea,
Ischyropsalidae ).J Arachnol 3: 5-29.
6 Suzuk iS (194 1O)pilione sfrom Manchoukuo and
REFERENCES North China, with a descriptio nof the interesting
genus Sabacon (Ischyropsa l(iId nJaaep)an,es ewith
1 Cokendolphe rJC (1984 )A new species of Sabacon English descriptio nand summary) . Bull Biogeogr Soc
Simon from Oregon (Arachn iOdpail:iones :Sabaco- Jpn 11: 15-22.
nidae). Can J Zool 62: 989-991. 7 Suzuki S (197 4T)he Japanese species of the genus
2 Martens J (197 2)Opilione saus dem Nepal- Sabacon(Arachnida,Opiliones,Ischyropsaiididae).J
Himalaya, I. Das Genus Sabacon Simon (Arachnida: Sci Hiroshima Univ (B-1 2)5: 83-108.
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