New or Little-known Elateridae (Coleoptera)from Japan,XXVIII

6 Pages·1993·5.6 MB·English

by  Ohira, H

E?、,t,a,Tokyo21(2):249-254,Nov.15,1993
Newor Little-known Elateridae(Coleoptera)
from Japan, XXVIii
HitooOHIRA
Kitsuneyama6-4,Maigi-cho, 0kazaki,444-35Japan
Abstract Two new speciesand two new subspeciesofelaterid beetles are de-
scribed from Japan and illustrated. They are: Ag1・yp1tlls (Co/a111o,1) kustli1'sp nov.
(subfam. Agrypninae), Hypolit1/lls..111otschulskyl hi・,anol subsp. nov. (subfam. Hyp-
noidinae),i)e,1t1(,cills、,asta1111sp nov.(subfam.Dentico11inae)andAmpedus(Pal,elate・,)
cana/1co//Iss1/1dolasubsp nov.(subfam.Ampedinae).
In thepresent study, I amgoingtodescribe two newspeciesand two newsub-
species of elaterid beetles from Japan. They belong to four different subfamilies,
Agrypninae, Hypnoidinae, Dentico11inaeand Ampedinae. The ho1otypes of each
speciesandsubspeciesdescribedinthispaperarepreservedinthecollectionofthe
NationalScienceMuseum(Nat.Hist),Tokyo.
Beforegoing further, I wish toexpressmydeep indebtedness to Dr. Shun-Ichi
UENoof theNationalScienceMuseum(Nat.Hist),Tokyo,forhisreadingthemanu-
scriptandgivingmeusefulsuggestions,andtoMessrs.YoshihisaKusulofNagasaki,
Yukihiko HIRANo of Odawara, Yasumi TAKAHAsHl of Iwate, Toshihiro OzAKl of
Hirosaki,andHiroshiSHIDouofSapporofortheirkindnessinofferingthespecimens
usedin this report.
Agrypnus(Colaldon) kusln'isp nov.
(Fig.1)
Male. Length 6.5mm,widthabout2.5mm. Bodyrobust,nearlyparallel-sided
andmoderatelyconvexabove:surfacerathershining,blacktoblackishbrownexcept
for dark brownaroundmarginsof pronotumandelytra; antennae(basalsegment
duskybrown)andlegsmoreor lessreddishbrown;vestiturefulvous,scale-1jkeand
decumbent all over.
Headsubtriangularlydepressedbetweeneyes;surfacedeeplyandcoarselypunc-
tate;clypealmarginobliteratedatmiddle,well-ridgedoverantennal insertjons. An-
tennashort,notattainingtoposteriorangleofpronotum,2ndsegmentsubcylindrica1,
a littlelonger thanitsbreadth,3rdsubclavate,almostaslongas2ndandalittleshorter
than4th, 4thto10th triangularlyserrate(Fig.1B).
Pronotumsubquadrate,widestacrossthemiddle,thenceclearlynarrowedtowards
anteriorangles,subpara11e1-sidedinposteriorhalf,discgentlyconvex,deeply,coarsely
250 HitooOHIRA
Fig.1. .4g1・),p'111.1, (Co/a1lfon) 1lsM1sp.
nov. - A, Holotype (male); B,
same,rightantenna;C,same,right
posteriorangleofpronotum
A
andsomewhat rugoselypunctate,bearingashallowmediansmooth1ongitudina11jne
inposterior half; posterior anglesshort, witheachtippointedposteriorly, but not
truncateobliquely, withoutcarinaabove(Fig. 1C).
Elytraabout l8timesaslongastheirbasalbreadth;sidesweaklyreflexed,grad-
ually dilated backwards at basal third, thence rounded and gradually converging
towardsapiceswhicharenormallyrounded;striaewelldefined,deeply,circularlyand
regularlypunctate; intervalsalittleelevated, irregularlyandrugoselypunctate. Hind
wingsofnormal length,notdegenerated.
Femaleunknown.
Holotype: Mage-jima Is near Tanegashima Is. inKagoshimaProf., 2_vIII_
,
l991, Y. KusuI leg.
Distrlbutton. Mage-jimaIs. off thewesterncoast ofTanegashimaIs.,southof
Kyushu.
ThisnewspeciesiscloselyalliedtoA;grypnus(Co/au/on)hypnicola(KlsH1l,1964)
fromJapan,butcanbedistinguishedfromthelatterbythefollowingpoints:thedjsc
ofpronotumbearingasmoothmedianlongitudinallineinposteriorhalf;theposterior
anglesofpronotumpointedposteriorly,nottruncate.
Hypolithnsmotschulskyihiranol'subsp
nov.
(Fig 2)
Male. Length12mm,widthabout 4mm. Bodyblackandshiningexcept for
dusky reddish-brown antennaeand legs; vestitureshort, decumbent and fulvouson
ventralsurface,almostglabrousondorsalsurface.
NeworLittle-knownElateridaefromJapan,xxvIII
251
Fig.2. Holotypeof Hypolithus,notsc・hu/-
skyihi1-anoisubsp nov.(male).
This newsubspeciessomewhat resemblessubsp ta1(・hlkawatOHIRA, 1968, from
Mt. Mitake, west of Tokyo, andsubsp.ohbayashiiOHIRA, l968、fromMt. 0yamain
KanagawaPrefecture,butdiffersfromtheminthefollowingpoints:bodyrobusterand
stouter, with thesidesof pronotumclearlysinuatejust beforeposterior angleswhich
aresharply produced postero-1aterad1elytra1striaedeep, with the intervalselevated
andmoresmoothlyandminutelypunctate.
Holotype: , Mt. Kintoki oftheHakoneMts. in KanagawaPref., 6-VII-1991,
Y. HIRANoleg. Paratype:1 ,samedataasfortheholotype.
1sfr1加f,o,?. HakoneMts.inKanagawaPrefecture,Honshu.
Denticoliisvast,mil'sp nov
(Fig 3)
Male. Length 7.5mm, width about 2mm. Body elongate, almost parallel-
sidedandmoderatelyconvexabove;surfaceshining,entirelyyellowish brownexcept
for darkbrownantennae, most partsof head, basalmarginofpronotum,scutellum,
sutureand2ndand6th to9thintervalsofelytra; legsyellowishbrown;vestiturefine,
erect and paleyellow.
Headdeeplyand triangularlyexcavatedbetweeneyes(Fig 3C);surfacecoarsely
and unevenly punctate1clypeal margin well raised, rounded at middle; nasal area
broad, subrectangular, almost 1/2ashigh as its transversewidth; eyesprominent,
antennaelongate,extendingbeyond posteriorangleof pronotumat least by4apical
segments;basalsegment robustandsubclavate,2ndsubtriangularandalmostaslong
asitswidth,3rd to10thweaklyserrate(Fig 3F).
252 Hit00OHIRA
A
Fig 3. Dentlcoliis yasu,nl'l sp nov. - - A, Holotype(ma、e); B, pronotum in dorsal aspect
C,headindorso-1atera1aspect;D,aedeagusindorsalaspect; E,apicalportionofleftlat
orallobeofaedeagus;F,2ndto4thsegmentsofmaleantenna.
Pronotumsubquadrate,widestacrossbase,withsidesweaklysinuatejustbehind
anterioranglesandweaklyroundedatmiddle; discmoderatelyconvex,bearingapair
ofobliqueimpressionsatthesidesofbasalarea:surfacecoarselyanduniformlypunc-
tate1posterior angleshort,pointedpostero-1aterad,withoutcarinaabove(Fig 3B).
Scutellumsubquadrate, punctateandpubescent.
Elytraabout 3 timesas longastheir basal breadth,withsidesalmost parallel in
basal3/4,thenceroundedandgraduallyconvergenttowardsapiceswhichareobtusely
rounded; striae defined, coarsely punctate, intervalselevated, irregularlyand trans-
versely rugose. Legsslender, tarsi andclawssimple. Aedeagusas illustrated(Fig.
3D-E).
Femaleunknown.
Holotype: Mt.Hayachine,IwateProf.,26-VII-1987,Y.TAKAHAsHI leg. Para-
,
types:2 Iwaki-cho, AomoriPref.,25~28-VII-1986, T. 0zAKIleg.
,
Distribution. Honshu,Japan.
ThisnewspeciesissomewhatalliedtoDentlco1/isvatlansshi・,o-u10HIRA,1963,
from Hokkaido, but canbedistinguished fromthelatterby thenarrower and slender
bodyand theantennaeweaklyserratefromthe4th to the10thsegments
' m edMs(PareZafer)eanall'eoZh'ss喫doM subs nov.
(Fig 4)
Male. Length 10mm, width about 3mm. Body robust and shining, black
NeworLittle-knownElateridaefromJapan, XXvIII 253
Fig 4. HolotypeofA,11pedus(Pal,elatel・)
cana/fco//Iss7/1doMsubsp nov.(male).
exceptforcinnabar-redelytra(moreorlessblackattheapicalportion),antennaeblack,
legsblack,withblackishbrowntarsiand reddishbrownclaws;vestitureblack;pro-
notumusuallybearingafineopalesquelustre.
Thisnewsubspeciescanbedistinguishedfromthenominotypica1subspeciesfrom
Honshubytheshorter andmoreclearlytrapezoidalpronotum, coarser anddenser
puncturesonhead,well-ridgedclypea1margin,andmoreclearlyserrateantennae.
Holotype: Ishikari-cho, Hokkaido, 1-XI-i992, H.SHIDou leg. Paratypes:
,
4 1 ,samedataas for theholotype.
,
lstrf加t1on. Hokkaido,Japan.
要 約
大平仁夫: 日本産コメッキムシ科の新種, XXVIII - 本報告では, 4亜科に属する2新種2新
亜種を記載した.
Agrypnus (Colau1on) kusuii (シマヒメサビキコリ) は, 長崎検疫所の楠井善久氏が, 鹿児島県の
種子島に隣接した馬毛島において採集された離個体である. 一般外形はA. (C・) hypniCola(KISHII,
, 1964) コカ'タヒ .サビキコリに類似しているが, 前胸背板正中部に平滑縦E(cid:0)(cid:10618)(cid:18210)(cid:7031)(cid:18151) 後 角部が切断
状をせず, 上翅の点刻が粗雑で深く印することにより識別できる.
Hypolithusmotschulsky1hiranoi (ハコネミヤマヒサー」コ ツキ) は, 箱根山塊の金時山から, 小
田原市の平野幸7彦氏によって見出された. 体長12mm内外で黒色, 光沢のある個体である. 束京部
御岳山産(subsp tachikawai)や相模大山産(subsp.ohbayashii)のものに比べて, 体が大型で幅広
, く, 前111」,株板wの両側は後角前で顕著に内方へ湾出l 後 角は鋭く後外方へ尖ることによって識別でき
る.
Dentico11is yasumii (ハヤチネベニコ ツキ) は, 岩手県の早池峯山において, 岩手県の高橋泰美
254 HitooOHIRA
氏により2雄個体が採集された. 同様に青森県岩木町で, 前市の尾崎俊,-i氏が2雄個体を採集され
ている. 体長7~8mmの小型で, ,,褐色~淡黄 色をLた細長い相lである. i貝i 部と前111'j背板の大部
分は暗福色で. 上 には縦の帯状の暗褐色1111を有する.
.4mpedus (Parelater) cana/icouis shidoui (エ・ノムネ ミ ノアー'フコ ノキ) は, 北海道のl:1持町で志
藤宏氏が薪割で見出された. 本州産のものに比へて前月l9,背板力、より1」大で, 頭部の点刻はよりM都1で
密に生じ, 触角の第3節がより顕著に三fl形状をし,:いることなどにより識別できる.
References
sHII,T., 1964. Elateridaeof islandsAwa-shima, Hegura-jimaand Nanatsu-jima. Thesnapper
ofislands(IV). Bull.HletanHighSo1/001, Kyoto,(8):1-38,3pls.
Annis.Mag.,lat.Hist.,(6),13:26-48.
LEWIS, G.,1894. OntheElateridaeofJapan.
0HIRA,H.,1963. New orlittle-known ElateridaefromJapan, V(Coleoptera). Ko,1yil, T,ok、,o,31:
176-179.
- - 1968. NotesonHypolithus(Hypnoidus)motschl11sky1'(FLEuTIAux,l902)(1). E'It. Re、'.Japa,1,
21:25-32,1pl.
Elytra,Tlokyo,21(2):254,Nov.15,1993
A NewLocalityof Pterostlchus tanakaorun1
(Coleoptera,Carabidae)
Sumac KASAHARA
Nishifuna4-9-13.FunabashiCity,Chiba,273Japan
Theapterouspterostichinecarabidbeetle,PterostlchustanakaorumMORITAetOHKURA,
1988,wasdescribedfromRyujin-muraintheKiiPeninsula,Japan, andhashithertobeen
knownonlyfrom thetypelocality. Recently, I have examined amalespecimenof the
samespeciescollected at Misato-choinWakayamaPrefecture, more than20km north-
westofRyOjin. Irecordithereasanadditionallocalityoftheinterestingpterostichine.
1(j1l,Ta(220malt), Misato-cho,WakayamaProf., 15-X-1992,S. UENoleg. It was
obtainedwiththemicrophthalmictrechinecarabid, Trechzama reductoculatusS. UENo.
I thankDr.Shun-lobi UENoof theNationalScienceMuseum(Nat.Hist), Tokyo, for
givingme theopportunity toexamine thespecimenunder hiscare.