The Pterostichine Subgenus Rhagadus (Coleoptera, Carabidae) from the Abe Pass, Central Japan, with Description of a New Species

2007·5.2 MB·English

by  Morita, S

Elytra,Tokyo,35(2):401-406,November3,2007
ThePterostichineSubgenusRhagadus (Coleoptera,
Carabidae) fromtheAbePass, Central Japan, with
Descriptionof aNewSpecies
Seiji MORITA
Higashi-gotanda5-19-7,Shinagawa-ku,Tokyo,141-0022Japan
Abstract Three pterostichine speciesbelonging to thesubgenusRhagadus
collectedontheAbePass,ShizuokaPrefecture,CentralJapanareenumerated. A new
speciesisdescribedunderthenameofPterostlchus(Rhagadus)komlyaisp nov.
I amgoing to deal with the species belonging to thepterostichinesubgenus
Rhagaduscollectedbymyself fromtheAbePass,ShizuokaPrefecture,CentralJapan.
TheyarePterostichus(」R.) komiyaisp nov.,P. (R)britton1HABU(1958,p ie), andP.
(K.)sp. Eventhoughthetaxonomicknowledgeofthesubgenusisstillnotsatisfactory,
I amgoingtoventuretodescribeanewspecies, and todedicatethispaper to the
memoryofthelateDr.Yoshiaki KoMIYA,aspecialistofChrysomelidae.
Theabbreviations used herein are thesame as thoseexplained inmy previous
papers. Theholotypeandallotypeof thisnewspeciesaredepositedintheNational
Museumof NatureandScience,Tokyo.
Thisstudyisbasedonexaminationof150specimensof thesubgenusRhagadus
from Kwantodistrict,andShizuokaandYamanashiPrefectures,CentralJapan.
Beforegoingfurther,I wishtoexpressmydeepgratitudetoDr.Shun-IchiU直NO
of the National Museum of Nature and Science, Tokyo, for critically reading the
originalmanuscriptofthispaper.MythanksarealsoduetoDr.KimioMASuMOToand
Dr. YukaUTsUNoMIYA forsupplyingmewith importantmaterial.
Pterostichus(Rhagadus)komiyai MORITA,sp nov
[Japanesename:Komiya-hime-naga-gomimushi]
(Figs.1&5)
Diagnosis. Bodysmallandstout; pronotumwide;sidesofelytraratherstrongly
arcuate;aedeaga1apicallobesimpleandwithratherwidelyroundedapexindorsalview.
Descrjptjon. Length: 6.2-6.9mm (from apical marginof clypeus toapices of
elytra).
Body small andstout. Colour black to blackish brown; dorsalsurfaceslightly
402 Seiji MORITA
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. 0 ..:
l 1
Figs.1-4. Outlineof the left side of pronotum inPterostichus (Rhagadus) spp. - 1,P. (R)
komiyai MORITA,sp nov., from the Abe Pass; 2, P. (R) takaosarius HABU, from the type
locality (Mt.Takao-san);3,P. (R)sp., fromtheAbePass;4,P. (R)britton1HABU, fromthe
AbePass. (Scale:2mm)
shiny; ventralsidealmost black toblackishbrown;sidesandbaseofpronotumand
appendagesdarkbrowntobrown.
Headconvex;eyesweaklyconvex; frontal furrowswide,divergentposteriadand
reachingthelevelofanteriorsupraorbitalporesoralittlebeforethatlevel,andwithfine
tocoarsepunctures; fronsusuallywithcoarsepunctures; lateralgroovesdeep,straight,
andextendingtothemid-levelofgenae;PW/HW l54-1.57(M I56) in 1.52-1.53
,
(M I53) in早;genaeobliqueandalittleshorterthaneyes;microsculpturecomposedof
isodiametricmeshes;mentumtoothstoutandbifid;relativelengthsofantennalsegments
as follows: - I: II : III : IV :V: VI :XI - l :0.53: 0.99: 0.93:0.90: 0.89: 1.20.
Pronotumtransverseandconvex;apexalmoststraight tomoderatelyemarginate,
andweaklyborderedatthesides;PW/PL134-1.40(M I 36) in ,1.35-1.44(M I 3g)
in早;sideswidelyarcuatethroughoutorveryslightlysinuatealittlebeforehindangles;
PterostichineSubgenusRhagadits fromCentralJapan 403
basestraight;PW/PAt43-1.48(MI46)in ,1.40-1.46(M I44) in早,PW/PB123-
1.25(M I24) in ,1.20-1.31(M I25) in早,PA/PB0.85-0.86 (M0.86) in 0.83-
,
0.gO(M0.87) in早;apicalanglesmoderatelyproducedandwidelyroundedatthetips;
hindanglesobtuseor rectangular; anteriorpairofmarginalsetaeinsertedatalittle
beforethewidestpart,posterior onesalittlebeforeandinsidehindangles; anterior
transverseimpressionvanished;medianlineclearlyimpressed,reachingneitherapexnor
base; basal foveae rather shallow, wide, and with coarse punctures and wrinkles;
microsculpturecomposedoffineandtransversemeshes.
Elytraovate,convexandwidestataboutthemiddle;EW/PW1.14-1.17(M1.16)
ind'',1.13-1.18(M1.16) in早,EL/EW150-1.52(M I51) in ,1.46-1.53(M I 50)
jn早;shouldersdistinct,andwithatoothoneachside;sidesmoderatelyarcuate,and
withveryshallowpreapica1emargination;apicesseparatedfromeachother,andsutural
anglerounded;scutellarstriolelacking;stria1joiningbasalborder;basalporesituated
atthebaseofstria2; twodorsalporessituatedonintervalIIIandjoiningstria2oron
stria 2; first poresituated at basal 2/5 of elytra, and second one at basal 7/10;
microsculpturecomposedoffinetransverselines;marginalseriescomposedof14pores.
Ventral surface coarsely punctate, but the gula, median part of prosternum,
metepimeraandmetacoxaearesmooth.
Basaltwoorthreesegmentsofmeso-andmetatarsieachwithoutersulciondorsal
side; TL/HW0.90-0.97(M0.93) in ,0.82-0.89(M0.86) in早.
Aedeaguselongate;apicallobeelongateandslightlyinclinedtotherightoralmost
straight;vieweddorsally,apexratherwidelyrounded;rightparamereelongate,andwith
elongateapicalpart; left onesquare.
Typeseries. Holotype: ,allotype:早,AbePass,4~11-X-1997,S. MORITAleg.
Paratypes: 6 3早早, AbePass, 4~11-X-1997,S. MORITA leg; 2 1早,same
, ,
locality,2-VI-1996,S.MORITAleg;1早,samelocality,19~20-IX-1980, S. MORITA
leg; l Mt. 0-yama, Tanzawa Mountains, Kanagawa Prof., 10-VI-2005, Y.
,
UTSUNOMIYAle9.
Localitiesof thetypeseries. AbePass, Shizuoka-shi, ShizuokaPrefecture; Mt.
0_yama,ontheTanzawaMountains,KanagawaPrefecture,CentralJapan.
Furtherspecimensexamined 2早早,Aoki-kosen,YamanashiPref.,12-VI-1999,S.
MORITAleg.
N1otes. Thestandard ratios of body parts shown in the descriptive part were
measured in 4 and4早早fromthetypelocality.
Judgjngfromtheshapeoftheaedeaga1apicallobe,thisnewspeciesiscloselyallied
toPterostichus、(Rhagadus)takaosanusHABU(1958,p 8). Itis,however,distinguished
fromitbythefollowingpoints:1) frontalfurrowswider,2) fronscoarselypunctate,3)
pronotumwide,PW/PL134-1.44,4)reflexedlateralsidesofpronotumwider,5)basal
foveaeofpronotummorestronglypunctate,6)elytra1sidesmorestronglyarcuate,7)
aedeaga1apical lobeslightly inclined to the right, 8) aedeaga1apex rather widely
roundedindorsalview,and9)apicalpartof rightparameremoreelongate.
The Abe Pass, the typelocality of thisnewspecies, issituated just above the
404 SeijiMORITA
b
6
e
b
l l
Fi9S.5-7. MalegenitalorganofPterostichus(Rhagadus)spp. - 5,P. (R.)komiyaiMORITA,sp.
nov., from the Abe Pass; 6,P. (R) br加ont HABU, from the Abe Pass; 7,P. (.R) takaosanus
HABU,fromthetypelocality(Mt.Takao-san). - a, Aedeagus, leftlateralview;b,aedeagus,
dorsalview;c,leftparamere,leftlateralview;d,rightparamere,leftlateralview;e,apicalpartof
aedeagus,leftlateralview.(Scale:0.5mm)
headspringoftheAbe-kawaRiver. ThenearestcollectingspotofP. (R.)takaosanus
HABU isUedo,where this river descends for about 14km tothesouth from the Abe
Pass. AmalespecimenofP. 、(R) takaosanusfromUedohasthefollowingstandard
PterostichineSubgenusRhagadus fromCentralJapan 405
ratiosofbodyparts:PW/PL129,PW/PB129,EL/EW1.56. Thecollectingdataof
thespecimenareasgivenbelow:1 Uedo,Shizuoka-shi,ShizuokaProf.,29-IV-1988,
,
S. MORITAleg.
Ontheotherhand,thisnewspecieslookslikeasmallindividualofP. (R.)britton1
HABU,butisdistinguishedfromitbythefollowingpoints:1)basalfoveaeofpronotum
shallowerandwider,andwidelypunctate,and2) decisivelydifferentshapeofaedeagal
apex.
Pterostlchus (Rhagadus)brittomHABU
(Figs 4&6)
Specimenseclamined. 2 (tenera1),AbePass,4-X-1997,S. MORITAleg.
Notes. Thisspecieshasawidepronotumandapeculiarlyshapedaedeaga1apex. A
malespecimen of thisspeciesfrom theAbePasshasthe followingstandardratiosof
body parts: PW/HW154, PW/PL134,PW/PA t52,PW/PB127,PA/PB0.83,
EW/PW 120, EL/EW l 50. ThisspeciesremindsusofP. (R) harponifetr TANAKA
(1987, p it8) known from theKwantoand Tokai districts, becauseof thepeculiar
shapeofaedeaga1apex. ThoughIhavenotseenthatspecies, Ideterminedthemasp.
(R) britton1basedon their peculiar shapeof thepronotumandof aedeaga1apex in
dorsal view.
Pterostichus (Rhagadus)sp.
(Fig 3)
Specimene::xlammed. 1d'',AbePass,3~4-VII-1977,S.MORITAleg.
Notes. Iamunabletodeterminethisspecimen. Ithasthefollowingfeatures:body
ratherlarge(L:9.00mm);bodyblack;elytrawithiridescent luster; appendagesblack-
ishbrown;sidesofpronotumstronglyarcuate;elytra1microsculpturealmost vanished;
aedeaga1apical lobesimple.
要 約
森田誠司: 静岡県安倍峠産Rhagadus亜属のナガゴミムシ. - 静岡県安倍峠と神奈川県相模
大山で採集されたナガゴミムシを新種と認め, 故小宮義璋先生に献名し, コミヤヒメナガゴミム
シPterostichus(Rhagadus)komiya1spnov. として記載した.本種は, この亜属の種のなかでも小
型で, 前胸背板の基部がl品l 広く, 陰茎の先端部は, ややl品l 広であることなどの特徴をもつ. さら
に, 基準産地の安倍峠において, 同亜属の2種が採集されているので, 簡単に報告した.
References
HABU,A., 1958.Study on thespeciesof thesubgenusRhagadusofPterostichus fromJapan (Coleoptera,
406 Seiji MORITA
Carabidae).Mushi,FukMoka,31:1-13.
TANAKA, K.,1987.Pterostichinicollectedby Dr.Shun-lobiU直NOatthe footofMt.Fuji,Honshu,Japan
withdescriptionofanewspecies(Carabidae,Coleoptera).Ent.Rev.Japan,Osaka,42:117-120.
Elytra,Tokyo,35(2):406,November3,2007
ANewRecordofBembidionsato1(Coleoptera,
Carabidae) fromTaiwan
SeijiMORITA
Higashi-gotanda5-19-7,Shinagawa-ku,Tokyo,141-0022Japan
Bembidion satoi MORITA was described by myself on the basis of an ample series of
specimenscollectedonIriomoteIs.,SouthwestJapan. Sincethen,however,norecordhasbeen
madeof thisspecies.
Recently, I came acrossasingle femalespecimen of B.satoi collected by local peoplein
Taiwan. Inthisbriefreport,IwillrecorditforthefirsttimefromTaiwan. IthankDr.Katsuyuki
TERADAfor hiskindhelp.
Bembidion(Neoemphanes)satoi MORITA
Specimenexamined.1早, Lienhuachih,5-VI-1978.
References
MORITA,S., 1993. NotesontheBembidiinae(Carabidae)ofJapan. VI. Anewspeciesof thesubgenus
Neoemphanes. Elytra, Tokyo,21:349-352.
TERADA, K.,Meng-HaoHsu&Won-JerWu,2005.Achecklistof theCarabidae(CoIeoptera)ofTaiwan.
Misc. Rcpt.HHI)aMus. ,tat. Hist., (45) :163-216.