Hypselistes paludicola is a junior synonym of Trichopternoides thorelli (Araneae: Linyphiidae)

2015·2.2 MB·English

by  Petr Dolejš

5 5
Arachnologische Mitteilungen 50: 19-21 Karlsruhe, November201
Hypselistespaludicola is ajunior synonym of Trichopternoides thorelli
(Araneae: Linyphiidae)
PetrDolejs&Vlastimil Rüzicka
doi: 10.5431/aramit5003
Abstract.HypselistespaludicolaTullgren, 1955wasmentionedonlyafewtimesintheliteraturesinceitsdescription.
Afterexaminationoftheholotype,itcan beconcludedthatHypselistespaludicolaTullgren, 1955isajuniorsynonym
ofTrichopternoidesthorelli(Westring, 1861)syn.nov.
Keywords:FrantisekMiller,holotype,newsynonymy,spiders,taxonomy
Zusammenfassung. Hypselistespaludicola isteinjüngeres Synonym von Trichopternoidesthorelli(Araneae:
Linyphiidae).HypselistespaludicolaTullgren, 1955wurdeseitseinerBeschreibungselten inderLiteraturzitiert.Die
Untersuchung des Holotypus bestätigt,dassHypselistespaludicolaTullgren, 1955 identisch ist mit Trichopternoides
thorelli(Westring, 1861)ist,syn.nov.
The spider Hypselistes paludicola was described by 687) noted under the description ofTrichopternoides
Tullgren (1955) from southern Sweden. The de- n. gen. and its type species T. thorelli (Westring,
scription was based on a single female. Later, this 1861): “Accordingto Lehtinen (person,commun.ca.
species was mentioned twice by F. Miller from the 30 years ago) HypselistespaludicolaTullgren, 1955 is
territory of the Czech Republic under the name ajunior synonym.”
Hypselistespaludosus (World Spider Catalog 2015).
Miller (1966) had three females available: one fe- Taxonomy
male from a peat bog in south Bohemia (Miletin Trichopternoidesthorelli(Westring, 1861)
nearTrebon) and two females from a field in south Erigonethorelli-Westring (1861): p.228 (descr.M).
Moravia(Branisovice nearPohorelice).Hepresented Hypselistespaludicola-Tullgren (1955): p. 348,Table
a detailed description, but expressed serious doubts XVTI,Fig.51 (descr.F); syn.nov.
-
about the identity of his specimens: “Es ist nicht Hypselistespaludosus Miller (1966): p. 161,Table V,
ganz sicher, dass diese Weibchen mit dem schwe- Figs 7-12 (F) (misspelling).
dischen weiblichen Typ identisch sind. Tullgrens Hypselistespaludosus - Miller (1971): p. 292, Table
kurze Diagnose passt zwar ziemlich gut aufunsere LXI,Fig.29 (F).
Exemplare,dochgibtesgewissewesentlicherUnter- Trichopternoidesthorelli-Wunderlich (2008): p. 687,
schiede, die die Zuordnung zu H.paludicola einiger- Figs 5-9 (M F).
maßen unsicher machen” [It is not certain whether Material examined. Type material: Hypselistes
these females are identical with the Swedish female paludicola 1 2 (Fig. 1A-B), Smäland:Tranäs, SWE-
DEN , m
type. Tullgrens short diagnosis fits quite well with (58.04°N, 14.98°E, 165 a.s.l.), 23 June
our specimens,however, some significant differences 1943, leg. A. Tullgren. Additional label: }Trichop-
make the identification as H. paludicola questiona- terna thorelli (Westr.), det. T. Kronestedt 1995. De-
ble.].The descriptionis shortlyrepeatedinthekeyto posited in the Swedish Museum ofNatural History,
the fauna offormer Czechoslovakia (Miller 1971: p. Nö NHRS-KASI 000000010. Itwas not allowed to
292,TableLXI,Fig.29).Buchar&.Rüzicka(2002:p. dissectthevulva ofthe type.
94) includedH.paludicolaas asynonym ofStyloctetor Other material examined. Hypselistespaludicola,
stativus(Simon, 1881).Finally,Wunderlich (2008: p. 1 2, Miletin, CZECHIA (49.02°N, 14.67°E, 450 m
a.s.l.), 14 July 1962, leg. J. Martfnek. Deposited in
PetrDOLEJS,DepartmentofZoology,NationalMuseum-Natural theNationalMuseum,Prague,N° P6A 852/1.Vulva
HistoryMuseum,Cirkusovä1740,CZ19200Praha9-HorniPocernice,
CzechRepublic;E-Mail:[email protected] mounted separately.The specimenwas mentionedin
VBlraasntiismoilvsRkÜäZ3I1C,KCAZ,I3n7s0ti0t5utCeeosfkEenBtuodmeojloovgiyc,e,BCiozleocghyRCeepnutbrleicC;AS, Miller (1966).
E-Mail:[email protected] Hypselistes paludicola 1 2 (Fig. 2A), Trebon,
submitted27.2.2015,accepted16.4.2015,online29.6.201 CZECHIA (49.01°N, 1,4.76°E, 435 m a.s.l.), July.
20 P.Dolejs&V.Rüzicko
Fig. 1: Hypselistes palu-
dicola, female holotype;
A-Photoofepigyne, B-
Drawing ofepigynefrom
the original description
(Tullgren 1955)
Fig. 2: Hypselistes palu-
dicola, female; A - Photo
of epigyne (Trebon), B -
Drawing ofepigynefrom
Miller(1966)
Fig. 3: Trichopternoides
thorelli,female;A-Photo
of epigyne (Calovo), B -
Drawing ofepigynefrom
Miller(1971)
mm
Scalebar0.1
Deposited in the National Museum, Prague, N- position ofthe eyes (Tab. 1) and the form ofthe epi-
P6A 852/2. gyne andvulvawere compared.
Trichopternoidesthorelli, 1 <5, 149 (Fig.3A),Vel’ky The female holotype of Hypselistes paludicola
Meder - Calovo, SLOVAKIA (47.86°N, 17.77°E, has trichobothria on metatarsi I—III near the distal
110 m a.s.l.), 10 May 1960,leg. F.Miller, Deposited ends ofthe segments, the trichobothrium on meta-
in the National Museum, Prague, N- P6A 889.This tarsus IV is present and the tarsi are relatively short.
species was described based on a male - no female On the contrary, females of Styloctetorstativus have
type exists. trichobothria in the middle of the metatarsi, a tri-
Styloctetorstativus,19,Tisice-Kozly,CZECHIA chobothrium on metatarsus IV is lacking and the
m
(50.26°N,14.56°E,165 a.s.l.),10April 1963,leg.J. tarsi are&not relatively short. Thus, the opinion of
Buchar.Deposited in the NationalMuseum,Prague, Buchar Rüzicka (2002:p.94) thatHypselistespalu-
N2 P6d-41/2012. dicolais asynonym ofStyloctetorstativusis clearlyer-
roneous.
Resultsanddiscussion Tullgren (1955: p. 348) was aware of the unu-
The two possible synonymies that had been previ- sual position ofthe trichobothria at the distal ends
ouslyproposedconcerningHypselistespaludicolawere of the metatarsi and considered establishing a new
considered.The overall shape ofthe prosoma,proso- genus: “Die Aufstellung einer neuen Gattung wäre
ma length and width, the position ofthe metatarsal vielleicht richtiger”[Establishinga newgenuswould
trichobothria, the relative length of the tarsus, the probably be a better solution]. Miller (1966: p. 163)
SynonymizationofHypselistespaludicola 21
Tab.1:Measurementsoffemales.ALE=anteriorlateraleyes,AME=anteriormedianeyes,BtrMt=relativepositionoftrichobothri-
umonmetatarsus,Cth=prosoma,Dpme=diameterofposteriormedianeyes,PER=posterioreyerow,PME=posteriormedianeyes,
Ta/Mt=ratioinlengthsoftarsusandmetatarsus
Specimen CthlengthCthwidth BtrMt BtrMtIV Ta/Mt PER AMEvs.ALE PME
(mm) (mm) I-III I-III inter-
distance
H.paludicola, 0.95 0.80 0.92-0.93 0.95 0.55-0.58 procurved AME < ALE < D
pme
holotype
H.paludicola 1.03 0.79 0.90-0.92 0.93 0.53-0.55 slightly AME < ALE < D
, pme
Miletfn procurved
H.paludicola 1.09 0.86 0.91-0.92 0.95 0.51-0.54 slightly AME < ALE < D
, pme
Trebon procurved
T.thorelli,Calovo 1.11 0.89 0.93 0.94 0.56-0.57 procurved AME <ALE < Dpme
S.stativus,Kozly 1.00 0.85 0.55-0.58 - 0.76-0.78 straight AME ~ALE ~ Dpme
noted the relatively short tarsi: “Auffallend sind die reference.WewouldliketothankTorbjörnKronestedtand
relativ kurzen Tarsen” [The relatively short tarsi are AndreiV.Tanasevitchfortheircommentstoanearlierver-
conspicuous]. Based on these differences, Wunder- bsiyonMionfitshterymaonfusCcurlitputr.eThoifstwhoerCkzweacshfiRneapnucbiallilcys(uDppKoRrVteOd
lich (2008: p. 686) established a monotypic genus 2015/15, National Museum, 00023272) and institutional
Trichopternoidesfor Trichopternathorelli. supportRVO:60077344.
Although the type specimen ofH.paludicolawas
jsuismtilaafrtetrothTe. fthionraelllmiouinltalalnpdarnaomteftuelrlsy c(oTlaobu.re1d),. Tithies RBeufcehraernJce&s Rüzicka V 2002 Catalogue ofspiders ofthe
epigynes are nearly identical (Figs 1-3), having the HarCvzeeychPRR,epNuebllliics.tPDerRes,&P,rTaehlaf.er35M1Gpp.2002 Provisional
anteriorpartdarkerthantheposteriorpart(cf.Miller atlasofBritishspiders(Arachnida,Araneae),Volume 1.
1966: PlateV,Figs 8-9),contraryto S.stativuswhose BiologicalRecords Centre,Huntingdon.214pp.
epigyne is unicoloured.The vulva ofH.paludicola as Mikhailov KG 2013 The spiders (Arachnida: Aranei) of
depicted by Miller (1966: Plate V, Fig. 10) is in ac- Russiaandadjacentcountries:anon-annotatedchecklist.
cordance with that ofT. thorelli as drawn byWiehle - Arthropoda Selecta Suppl. 3, KMK Scientific Press
(1960: Fig. 75). Eye arrangement mayvaryin details Ltd.,Moscow.263 pp.
Miller F 1966 Einige neue oderunvollkommen bekannte
(seeTab. 1),thus itcanbe usedonlywith caution for
Zwergspinnen (Micryphantidae) aus derTschechoslo-
separating these species.
wakei(Araneidea).-ActaEntomologicaBohemoslovaca
Based on our investigations, the old information 63: 149-164
fthreomprPe.lLiemhitniarnyendentoetremdinbaytJi.oWnunbdyeTr.liKrcohn(e2s0t0e8d)tacnadn MilAlrearnFeid1a9]7.1InR:aDdanPiaevlouMci&-ACrearnneyidVa([edOsr.d)eKrliScpizdvefrrsen-y
be confirmed: HypselistespaludicolaTullgren, 1955 = CSSR IV [Key to the fauna of Czechoslovakia IV].
Trichopternoidesthorelli (Westring, 1861) syn.nov. TullCgSrAeVn,APr1a9h5a5,pZpu.r51K-e3nn0t6n(iisnsCczhewcehd)ischer Erigoniden.
The species thus has aWest Palaearctic distribu-
-ArkivförZoologi (N.S.) 7:295-389
tion (from extramediterranean Europe toWest Sibe- WestringN 1861 Araneaesvecicae.-Göteborgs Kungliga
ria) (e.g. Buchar &c Rüzicka 2002, Mikhailov 2013), Vetenskaps och Vitterhets Samhälles Handlingar 7:
and inhabits detritus in wet places, such as marsh- 1-615
H
es, reed swamps, wet heathlands, alder and willow Wiehle 1960 SpinnentiereoderArachnoidea(Araneae)
growth (e.g. Buchar 6c Rüzicka 2002, Harvey et al. XI. Micryphantidae - Zwergspinnen. - Die Tierwelt
2002). Deutschlands47: 1-620
World Spider Catalog2015World spider catalog,version
16. Natural HistoryMuseum,Bern.- Internet: http://
Acknowledgements wsc.nmbe.ch (February26,2015)
We are grateful to Karin Sindemark Kronestedt (Swedish WunderlichJ2008 Descriptions ofnewtaxa ofEuropean
Museum ofNaturalHistory) fortheloan oftype material dwarf spiders (Araneae: Linyphiidae: Erigoninae). -
andJörgWunderlich for supplying us with an important BeiträgezurAraneologie5: 685-697