Systematics and Evolution of Weevils of the Genus Bagous Germar (Coleoptera: Curculionidae) IV. Three New Species from Japan

16 Pages·1995·0.52 MB·English

by  O'brien, Charles W

九州大学学術情報リポジトリ
Kyushu University Institutional Repository
Systematics and Evolution of Weevils of the
Genus Bagous Germar (Coleoptera: Curculionidae)
IV. Three New Species from Japan
O'Brien, Charles W.
Entomological Laboratory, Faculty of Agriculture, Kyushu University
Askevold, Ingolf S.
Entomological Laboratory, Faculty of Agriculture, Kyushu University
Morimoto, Katsura
Entomological Laboratory, Faculty of Agriculture, Kyushu University
http://hdl.handle.net/2324/2580
出版情報：ESAKIA. 35, pp.1-15, 1995-01-31. 九州大学農学部昆虫学教室
バージョン：
権利関係：
,AIKASE :)53( .51-1 yraunaJ ,135991
11napaJ
selrahC .WB’O RIEN , flognI .SA SKEVOLD
ygolomotnE aAdiro l,Flo-rtn olCacigolo iB & ,ytisrev i nMU
,eessahallaT LF 70323 .U .S.A
and
arustaK M ORIMOTO
lacigolomo t,nyErotarobaL ytlucaF fo ,erutlucirgA uhsuyK,ytisrevinU
,ak o8uk nu2aF1paJ
Abstract. eerhT seiceps fo Bagous B. yamazakii
O’Brien & Morimoto, B. jr-a&odes neirB’O & ,otomiroM dna B. nipponensis
O’Brien & Morimoto. Bagous yamazakii, known only from males, possibly
stneserper na yleritne wen seiceps ,puorg tub ylbaborp si detaler ot eht B. hydrillae
,puorg eht seiceps fo hcihw era ni .ailartsuA Bagous fractodes, nwonk ylno morfa
elgnis ,elam si ralimis ot B. fractus fo ,napaJ tub yltnedive si ton ylesolc detalerot
.ti Bagous nipponensis si nwonk ylno morf a elgnis ;elamef ti si ylraelc tonyna
seiceps otrehtih nwonk morf ,napaJ tub sti citenegolyhp noitisop si.lacoviuqe
The key to Japanese species is modified to include these three new species.
sutibaH shpargotohp dna enil snoitartsulli fo ailatineg era.dedivorp
INTRODUCTION
The Bagous Germar of Japan was recently revised (O’Brien et al., 1994), and their
phylogenetic relationships erew dezylana dloveksA( te al., .)4991 tA eht emit esohtstpircsunam
erew ni ,sserp a seires fo ruof snemiceps saw derevocsid taht dah neeb detcelloc ta ekaL ageTni
abihC ,erutceferP .napaJ ydutS fo ailatineg fo lla fo eseht snemiceps delaever eerht ,seicepshcae
htiw tcnitsid latineg ,erutcurts eerht elam snemiceps dna eno elamef.nemiceps tI saw ton -issop
)1 noitubirtnoC morf eht lacigolomotnE ,yrotarobaL ytlucaF fo ,erutlucirgA uhsuyK,ytisrevinU
akoukuF .reS( ,4 .oN.)37
2 .C .W ,NEIRB’O .I .S DLOVEKSA & .KOTOMIROM
.s s sennriopitaci l m beneeuhihdpttu l n coeenthlitb
Given that the Japanese Bagous were so recently studied, it is unlikely that they will be
deiduts ni liated ,niaga ni eht elbaeeserof .erutuf ,eroferehT ew ekat siht ytinutroppo otebircsed
eseht wen seiceps dna ot ecalp meht yllacitenegolyhp ni noitaler ot lla nwonk esenapaJseiceps
fo eht .suneg ehT tneserp repap si eht htruof ni na gniogno seires fo snoitacilbup no ehtsuneg
Bagous.
Descriptions were generated using DELTA (Askevold & ,neirB’O .)4991 serutcurtS taht era
desu ni ,noitacifissalc noitpircsed dna ynegolyhp fo Bagous era debircsed ro dessucsid niliated
ylsuoiverp neirB’O( te .la ,4991 dloveksA te .la ,)4991 dna siht noitamrofni si ton detaeper.ereh
Revised key to the Bagous of Japan.
1 artylE gnikcal lativilced sullac no lavretni ;5 lartyle selacs degnarra ni raluger sriapno
hcae ;lavretni ydob htgnel yllausu ssel naht 00.2 ,.mm ta tsom 01.2 .mm . . . . . . . 2
1’ artylE htiw llams ot egral lativilced sullac no lavretni ;5 lartyle selacs erom,suoremun
densely and irregularly arranged on each interval; body length greater than 2.00
,.mm yllausu erom naht 03.2 .mm . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . 3
)J(2 eannetnA detresni tsuj dniheb lacipa 4/l fo ;murtsor artyle htiw esrevsnart daorbetihw
aicsaf gnidnuorrus nworb ot kcalb egral lativilced .alucam
. . . . . . . . . . . . . . . .. pygmaeodes O’Brien & Morimoto
2’ eannetnA detresni tsuj dniheb lacipa 5/2 fo ;murtsor artyle htiw esrevsnart trohsdaorb
lativilcedetna etihw ,aicsaf dna euqilbo tsop laremuh etihw ,aicsaf dna derettacsetihw
.ealucam . . . . . . . . . . . . . . . . . . . . . , , , . , . . . . . . . . . . minor neirB’O & otomiroM
)’1(3 lativilcedetnA gnillews fo lartyle lavretni 3 ylgnorts.etalucrebut
. . . . . . . . . . . . . . . .. tuberculosus neirB’O & Morimoto
3’ Antedeclivital swelling of elytral interval 3 lacking or very weakly developed, not
tuberculate.......................................................4
4(3’) israT long, tarsomere 3 linear; antennae inserted just in front of middle of rostrum;
epacs yletaredom ;trohs artyle yllausu gnikcal eattiv ro.ealucam
. . . . . . . . . . . . . . .. imahgnikcub neirB’O & Morimoto
4’ israT trohs ot yletaredom ,gnol eremosrat 3 raenilbus ot ;etadrocbus eannetnadetresni
subapically, always well in front of middle of rostrum; scape usually moderately
gnol ot ;gnol artyle htiw elap eattiv ro/dna .ealucam . . . . . . . . . . . . . . . . . . . . . . . 5
X4’) Tarsomere 3 broadly ,etadroc apex rather deeply emarginate; body robust to very
;tsubor ydob htgnel yllausu retaerg naht 01.3 .mm . . . . . . . . . . . . . . . . . . . . . . . . 6
5’ Tarsomere 3 subcordate to sublinear, apex slightly emarginate to truncate; body
yletaredom tsubor ot yletaredom ;rednels ydob htgnel yllausu ssel naht 00.3.mm
. . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6(5) Funicle long, 0.95 as long as scape; declivital callus of elytral interval 5 -llew
;depoleved elcituc .kcalb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bipunctutus )onoK(
6’ Funicle short, 0.64 as long as scape; declivital callus of elytral interval 5 moderately
;depoleved elcituc .der . . . . . . . . . . . . . . . . . . . . . r-yukyuensis neirB’O & Morimoto
7(5’) eremosraT 3 .etadrocbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . 8
WE NESENAPAJ BAGOUS 3
7’ eremosraT 3 .raenilbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Basal margin of pronotum lacking carina; frons with median fovea. . . . . . . . . . . . . . 9
8(7)
8’ lasaB nigram fo mutonorp htiw tcnitsidni ot tcnitsid anirac ni naidem 2/l ot ;3/l snorf
htiw naidem .suclus . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . , . . . . . . 10
murtsoR fo elam dna elamef regnol naht xarohtorp ;)70.1( lartnev nigram fo murtsor
9(8)
distinctly carinate; declivital callus of elytral interval 5 weakly developed,
.etalugnabus . . . , . . . . . . _ . . . . . . . . . . . . . . . . . . . spiculatus neirB’O & otomiroM
9’ murtsoR fo elamef selam( )nwonknu retrohs naht xarohtorp ;)98.0( lartnev nigram fo
rostrum subcarinate; declivital callus of elytral interval 5 well-developed,
.etardauqbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lewisi neirB’O & Morimoto
)’8(Ol lasaB nigram fo mutonorp htiw tcnitsid anirac ni naidem l/2; lativilcedetna gnillewsfo
lavretni 3 ylkaew ,depoleved tub ;tnedive munrets 5 htiw owt sriap folaretalocipa
.eates . . . . . . . , . . . . . . . . . , . . . . . . . . . . . . . . . , . . . kagiashi bjjuhC & otomiroM
10’ lasaB nigram fo mutonorp htiw tcnitsidni anirac ni naidem ;3/l antedeclivital swelling
fo lartyle lavretni 3 ;gnikcal munrets 5 htiw eno riap fo laretalocipa.eates
. . . . . . . . ......a.. subcordatus neirB’O & Morimoto
1 )7(l Rostrum with apical median carina well-developed; frons not etaclus nor foveate
medially; abdominal sternum 2 not apically declivous; abdominal sterna with
punctures moderate in size. . . . . . . . . . . . . . . . . . . . . occultus O’Brien & Morimoto
11’ Rostrum lacking apical median carina; frons with median sulcus or fovea; abdominal
sternum 2 apically weakly to strongly declivous; abdominal sterna with small
punctures.............................................,.........12
12(11’) mutonorP htiw tcnitsidni esrevsnart anirac ni naidem 2/l fo lasab ;nigramlativilcedetna
swelling of elytral interval 3 weakly developed, but evident; sternum 5 basally,
ylesrevsnart ;etatsocbus lartyle eairts htiw wollahs.serutcnup
. . . . . . . . . . . a.. proprius O’Brien & Morimoto
12’ Pronotum lacking transverse carina or with strong transverse carina in median 5/3 fo
lasab ;nigram gnikcal lativilcedetna gnillews no lartyle lavretni ;3 munrets 5,yllasab
ylesrevsnart xevnoc ro ;talf lartyle eairts htiw yletaredom wollahs ot peed.serutcnup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . 13
13(12’) mutonorP htiw gnorts esrevsnart anirac ni naidem 5/3 fo lasab ;nigram erutusthgiarts
neewteb lanimodba anrets 1 dna .2 . . . . . . . . . . . . subvittutus neirB’O & Morimoto
13’ Pronotum lacking transverse carina on basal margin; suture bisinuate between
lanimodba anrets 1 dna .2 . . . . _ . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
14(13’) lanimodbA munrets 2 htiw elpitlum swor fo tnedive tnebmucerbus esraoc ;eates snorf
yrev ,daorb .ac 07.0 sa ediw sa daeh ssorca ;seye artyle htiw ytivilced ta 54seerged
ni( noitaler ot lasrod .)enalp . . . . . . . . . . . . . . . . . . . youngi neirB’O & otomiroM
14’ Abdominal sternum 2 with single row of scarcely evident subrecumbent coarse setae
dedarba( ni rotundatus); snorf ,daorb ssel naht .ac 66.0 sa ediw sa daeh ssorca;seye
artyle htiw ytivilced ta 06 ot 57 seerged ni( noitaler ot lasrod .)enalp . . . . . . . . . 15
15( )’41 Declivital callus of elytral interval 5 very weakly developed; rostrum with ventral
nigram ton etalugna ron ;etanirac ydob etagnole.lavo-daorb
. . . . . . . . . . .. rotundatus neirB’O & Morimoto
15’ Declivital callus of elytral interval 5 well-developed; rostrum with ventral margin
4 C. W. O’BRIEN, .I .S ASKEVOLD & K. MORIMOTO
,etalugnabus ton ;etanirac ydob etagnole .lavo . . . , . . . . . . . . . . . . . . . . . . . . . . 16
(61 )’51 eaibiT htiw ylecracs ,tnedive etunim ;selcitned 1aibit sucnu regnol naht htdiw fo1aibit
apex.......................... iikazamay neirB’O & Morimoto, new species
16’ eaibiT htiw ,tnedive tuots ;selcitned 1aibit sucnu retrohs naht ro lauqebus ot htdiwfo
1aibit .xepa . _ . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . , . . . . . . . 17
(71 )’61 eannetnA detresni ta ro tsuj dniheb lacipa l/3 fo ;murtsor israt yletaredom .trohs . . 18
17’ Antennae inserted at apical 4/l ro lacipa 5/2 of rostrum; israt moderately short or
yletaredom .gnol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
(81 17 ) eannetnA detresni ta lacipa 3/l fo murtsor ni ;selam artyle htiw ytivilced ta 06seerged
ni( noitaler ot lasrod ;)enalp munrets 5 yllasab ;talf 1aibit sucnu retrohs nahthtdiw
fo 1aibit .xepa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . sutcmf neirB’O & otomiroM
18’ eannetnA detresni tsuj dniheb lacipa l/3 fo murtsor ni ;selam artyle htiw ytivilced ta57
degrees (in relation to dorsal plane); sternum 5 basally transversely convex; tibia1
uncus lauqebus ni htgnel ot htdiw fo 1aibit.xepa
. . . . . . . . .. sedotcarf neirB’O & ,otomiroM wenseiceps
19( )’71 eannetnA detresni tsuj dniheb lacipa 4/l fo murtsor ni ;selam artyle htiw ytivilced ta57
seerged ni( noitaler ot lasrod ;)enalp israt yletaredom*.gnol
...................., sedo&f neirB’O & Morimoto
19’ Antennae inserted at apical 5/2 of rostrum in females (males unknown); elytra with
ytivilced ta 06 seerged ni( noitaler ot lasrod ;)enalp israt yletaredom.trohs
. . . . . . . . . nipponensis neirB’O & ,otomiroM wenseiceps
Bugous yamazakii O’Brien & Morimoto, new species.
serugiF( ,3 ,4).8
DESCRIPTION. -- Holotype .eluM -- ydoB ,dezis-muidem ,lavo-etagnole .tsubor Rostrum
long, 1.03 as long as prothorax; black, with apex reddish brown; broadly subcylindrical; with
lasrod erutavruc etaredom dna ;nevenu htiw lartnev erutavruc kaew dna ;neve ylkaewdesserped
ni lacipa ;3/l htiw naidem lasab anirac ;gnikcal htiw laretalosab anirac ;gnikcal htiwlaretalocipa
carina lacking; with apical median carina lacking; with basolateral sulcus deep, broad, long,
ylesraoc ;etatcnup htiw lartnev nigram ,etalugnabus ton ;etanirac htiw sedis ylnevenu,lellarapbus
gnidnapxe ni lacipa ;2/l eborts elbisiv morf evoba ylno ta tniop fo ,noitresni ,suorbalggnihcaer
,eye lasrod nigram gnihcaer eye ta lasrod ,nigram yllasab htiw lartnev nigram thgiarts rotsomla
so, meeting rostra1 margin at very acute angle; with scales dense in basal 2/3, subgranulate,
contiguous and subcontiguous, pitted, round, grayish brown, more coarsely subgranulate and
pitted basally, sparser apically, subgranulate, not contiguous, finely pitted, round and oval,
;cillatem htiw ,suoremun ylediw dna ylmrofinu ,decaps ,tnebmucerbus ,tnedive delruc ;eateshtiw
esraoc esogur serutcnup elbisiv htaeneb selacs ni lasab l/2, gnimoceb resraps dna renif.yllacipa
Head ylkaew ;xevnoc gnillews ediseb eye ;gnikcal seye yletaredom ,xevnoc muidem ;dezishtiw
scales coarsely granulate, contiguous, coarsely pitted, round, gray brown; with plumose scales
whitish, on articulating area and behind eyes. Supraocular setae few, short, distinct,
subrecumbent, curved, coarse, scale like, linearly arranged. Frons without submedian setae;
,daorb 84.0 sa ediw sa daeh ssorca ,seye tahwemos ,denettalf ton ,desserpmi ton tes ffo morf
rostrum by impression; with median sulcus, sulcus deep, moderately broad, long. Antennae
WEN ESENAPAJ BAGOUS 5
inserted just behind apical ,3/l inserted laterally; scape moderately long, moderately slender,
;etavalc epacs dna elcinuf hsidder ;nworb elcinuf ,trohs 77.0 sa gnol sa ,epacs htiw tnemges 1
,tuots tnemges 2 ,rednels 1 dna 2 lauqebus ni ,htgnel 6-3 ,trohs 7 trohs dna ylgnorts;esrevsnart
segment 7 narrower than first club segment; with pubescence of segment 7 distinctly denser
than other segments; distinctly separated from club; club broad-oval, uniformly pubescent,
segment 1 retrohs naht stnemges ,4-2 56.0 sa gnol sa ,elcinuf hsidder .nworb Pronotum weakly
,esrevsnart 98.0 sa gnol sa ;daorb htiw sedis yletaunis ,lellarapbus ton gnidnapxe morf ;esabhtiw
apical constriction moderate, in apical ,7/l without longitudinal carinae, dorsally distinct and
uniform; laterally weakly rounded behind constriction, with sides slightly impressed behind
dnuor ;aera gnikcal tip raen nigram fo lanretsorp ;suclus htiw naidem suclus ,tcnitsid daorbdna
,worran ,etelpmocni gnimrof lacipabus dna lasabbus ,snoisserpmi htiw lasabbus noisserpmi,egral
,gnorts yletaredom ;wollahs htiw lacipa noisserpmi ,llams ,tcnitsid yletaredom ;peed htiwnaidem
anirac ;gnikcal htiw csid ylesrevsnart ylnevenu ,denettalf ton ,etaludnu ton esogur ro ;esolugur
with apical and marginal setae numerous, moderately distinct, short, subrecumbent, curved,
;esraoc htiw anirac fo lasab nigram :gnikcal htiw aera fo esomulp selacs fo lasab ytivilced,daorb
convex and distinct; with scales coarsely granulate, coarsely pitted, contiguous and
subcontiguous, round, blackish brown; with three vittae, with median vitta narrow and broad,
,detpurretni ,tcnitsid ,nevenu elap ;nworb htiw laretal eattiv ,daorb yleuqilbo ,delgna elap;nworb
with indefinite dark brown lateral maculae on disc; with sides pale brown, with indefinite
blackish brown maculae; with postocular lobes strongly developed, deeply excavated below,
reddish brown. Prosternal sulcus moderately deep, broad, moderately narrowed at apical
,noitcirtsnoc ;etalugnaib htiw edis snigram yletaredom ylprahs ,desiar htiw laretal nigram tsuj ni
tnorf fo eaxoc laretal( )weiv ,etuca rehtien yltcnitsid gnitcejorp daretsop revo eaxocerof rontneb
inward. Scutellum .egral Elytra lellarapbus dniheb iremuh ot ;ytivilced 44.1 sa gnol saediw
across humeri; with disc area flat; with declivity at 60 degrees (in relation to dorsal plane);
markedly wider than prothorax; with apices nonacuminate, conjointly slightly emarginate; with
humeri well-developed, obliquely angulate, non-acute, somewhat produced; with basal margin
more or less flat, at most slightly swollen adjacent to scutellum; with odd-numbered intervals
ylthgils erom xevnoc dna ,detavele redaorb naht derebmun-neve ,slavretni htiw lavretni 3 erom
or less uniformly elevated; with setae of odd-numbered intervals conspicuous, short,
subrecumbent, curled, coarse, pale, each surrounded by scales of same color as other scales;
even-numbered intervals unevenly flattened, interval 2 not impressed; intervals 3-5 on disc
ylgnorts ;dedis-yletaunis csid ylkaew ylesrevsnart yletalugna desserpmi ssorca lasab ,3/l csidton
undulating; antedeclivital swelling of interval 3 lacking (though white maculae often appear
raised); declivital callus of interval 5 well-developed, subangulate, antedeclivital swelling of
lavretni 5 ;gnikcal ecneulfnoc fo slavretni 3 dna 9 ylthgils ;nellows lairts sevoorg tcnitsidwollahs
,worran htiw serutcnup llams etagnole worran yletaredom ,wollahs ton rediw naht lairts:sevoorg
scales granulate, contiguous and imbricate, coarsely pitted, round, arranged irregularly, with
eerht ro erom selacs ssorca ,slavretni ,nworb hsitihw dna ;kcalb ;etalucam-etaicsaf iremuh htiw
macula grayish white; antedeclivital callus or area of interval 3 with macula white; declivital
sullac ro aera fo lavretni 5 htiw alucam ;etihw esiwrehto htiw wef ,llams etihw ealucam dna,trohs
oblique white fascia behind humeri directed towards suture, remainder dark brown; cuticle
black. Metathoracic wings fully developed. Abdominal sterna htiw serutcnup gnikcalylno(
,)selunarg selacs .dettip munretS 1 htiw naidem noisserpmi ,wollahs ,daorb suounitnoc roferitne
6 C. W. O’BRIEN, I. S. ASKEVOLD & K. MORIMOTO
,htgnel ton repeed ,yllacipa ylthgils deworran ,yllacipa deunitnoc ylwollahs no munrets ;2lacipa
margin not declivous; 1.24 as long as 2; suture between 1 & 2 bisinuate, uniformly deep.
munretS 2 yllaidem ,desserpmi htiw noisserpmi ,worran ;wollahs yllacipa ylkaew ,suovilcedton
desserpmi no ;ytivilced 24.1 sa gnol sa 3 & 4 ;rehtegot htiw esrevsnart wor fo ylecracstnedive
netfo( )deduned tnebmucerbus esraoc .eates munretS 5 htiw riap fo lasabbus laretal,snoisserpmi
with apicomedian area flat, basally transversely subcostate, without tubercles; with lateral
snoisserpmi ,wollahs ;llams htiw owt sriap fo laretalocipa ,eates ,tcerebus ;esraoc 00.1 sa gnolsa
3 & 4 ,rehtegot 17.0 sa gnol sa ,2 05.0 sa gnol sa .1 -oseM dna mumetsatem htiw serutcnup ton
forming large concavities; mesosternal process large, subtriangular between ;eaxoc htiwselacs
;esomulp mumetsatem 92.1 sa gnol sa munrets.1 Legs moderately long; femora clavate, black,
htiw lasab 2/l hsidder .nworb eaibiT ,rednels hsidder ,nworb htiw renni nigram ,etaunisibhtiw
outer margin moderately arcuate toward apex (in lateral view); with apex not narrowed; with
renni ecafrus htiw selcitned ,wef ,tcnitsidni ,etunim eaibiterof gnikcal htob egral etucaselcitned
ro ,rups selcitned fo eaibitdim ekil esoht fo ;eaibiterof htiw wef suoucipsnocni seltsirb norenni
,ecafrus htiw ,trohs suoucipsnocni seltsirb no retuo ;ecafrus htiw uncus ,gnol yletaredom,rednels
longer than width of tibia1 apex; hind tibiae as strongly arcuate as fore- and midtibiae, with
etunim ,selcitned htiw eno ro owt trohs eates no renni .ecafrus israT yletaredom ,gnol;raenilbus
hsidder ;nworb seremosrat 3-l ylthgils denediw drawot ;xepa eremosrat 3 ylthgils rediw ta xepa
than 2, sublinear, subemarginate; tarsomeres ventrally with sparse to dense, subrecumbent to
tnebmucer ,ecnecsebup yllasrod hcae htiw riap fo lacipa lasrod .seltsirb Length, pronotum and
elytron: 2.95 mm.
Female. -- Not known.
Genitalia and Associated Structures. -- MALE. Median lobe with dorsal surface poorly
,dezitorelcs erom ro ssel ;suonarbmem htiw lartnev ecafrus suonarbmem tpecxe ta emertxe,esab
with arcuate basal bar; more or less parallel-sided; apical margin broadly and uniformly
;dednuor htiw xepa ni laretal weiv ,rednels htiw emertxe xepa ylworran ;dednuor htiwlasabosrod
margin not distinguishable; with ventrobasal margin distinct, deeply emarginate. Orifice very
,esrevsnart yrev ;trohs htiw lamixorp nigram ,tcnitsidni ton .dezitorelcs Apodemes ,gnol 74.1sa
gnol sa naidem .ebol lanretnI .cas laicifirO setirelcs .gnikcal Internal sac with single prominent
etalucips dleif no eno ;edis htiw lasab elucas gniniatnoc etagnole.selucips
Intraspecific Variation. -- eziS egnar 59.2 .mm oN tnacifingis noitairav devresbo ni ehtowt
snemiceps no .dnah
Etymological Note. -- sihT seiceps si deman ni ronoh fo .rM oediH ,ikazamaY ohwdetcelloc
eht epyt seires dna rehto snemiceps desu ni siht.yduts
Remarks and Comparative Notes. -- sihT seiceps selbmeser B. occultus dna B. spiculatus, but
both of these species possess distinct denticles on the tibiae, and clearly differ in the genital
.ygolohprom elaM ailatineg era yletelpmoc ekilnu yna rehto nwonk esenapaJ seiceps dna dluoc
therefore be confused with no other species. The ventrobasal arcuate transverse bar,
suonarbmem lasrod dna lartnev secafrus fo eht naidem ,ebol dna eht lasab etalucips elucasdna
elgnis egral laretal etalucips aera fo eht lanretni cas era evitcnitsid.sretcarahc
Biological Notes. -- No atad era.elbaliava
Type Locality. -- ,napaJ ,uhsnoH abihC ,erutceferP ekaL.ageT
Notes on Type Specimen(s). -- epytoloH yb( )noitangised elam ,)detcessid( htiw ehtgniwollof
labels: 1) [rectangular; white; printed male symbol in black ink] male 2) [rectangular; white;
WEN ESENAPAJ BAGOUS 7
printed in black ink] Lake Tega Chiba pref. 7691-IV-5 H. Yamazaki 3) [rectangular; pink
with black margins; printed in black ink] DRAWN / Askevold 1994 4) [rectangular; red;
detnirp ni kcalb ]kni EPYTOLOH / suogaB / iikazamay / neirB’O & ,otomiroM.4991
Point mounted. Right front and left middle legs missing some tarsomeres. Deposited in
Kyushu University, Fukuoka, Japan. Type number 2946.
Range. -- abihC ,erutceferP ,uhsnoH.napaJ
Material Examined. -- epytoloH dna 1 .epytarap [JAPAN:] [HonshQ:] ekaL ageTabihC
.ferp 7691-IV-5 .H ikazamaY (holotype, KU); 29-VIII-1967 (1 paratype, CWOB).
Phylogenetic Position. -- ehT seiceps si yrev lausunu ni erutcurts fo eht naidem ebol foeht
male genitalia, with both dorsal and ventral surfaces membranous, but with an arcuate
ventrobasal bar. In this respect it is similar to the Australian species B. josephi, hcihw saha
thgiarts lasabortnev .rab ,revewoH B. yamazakii osla sessessop a lasab etalucips ,elucas hcihwsi
a erutcurts taht si euqinu ot seiceps fo eht B. hydrillae ,puorg hcihw rucco ylno ni ailartsuAtub
with one undescribed species known from India (O’Brien & Askevold, 1995; Askevold &
,neirB’O .)5991 tI si lausunu gnoma seiceps fo eht B. hydrillae group, however, because .B
yamazakii skcal eht ,tnenimorp etuca laicifiro setirelcs dna eht lasabbus deriap etalucips saerafo
eht lanretni ;cas eseht era sretcarahc taht tsomla lla nwonk seiceps fo eht puorg ,erahs evas B.
pauxillulus. nA debircsednu seiceps morf eht senippilihP si tsomla lacitnedi ot B. yamazakii
and is clearly very closely related, as it possesses the same peculiar structures of the median
lobe.
Bagous fractodes O’Brien & Morimoto, new species.
(Figures 1, 2, 7.)
DESCRIPTION. -- Holotype Male. -- ydoB ,dezis-muidem ,lavo-etagnole .tsubor Rostrum
moderately long, 0.93 as long as prothorax; black, with apex reddish brown; broadly
;lacirdnilycbus htiw lasrod erutavruc etaredom dna ;neve htiw lartnev erutavruc ylraen ;thgiarts
not more distinctly depressed toward apex; with median basal carina lacking; with basolateral
carina lacking; with apicolateral carina lacking; with apical median carina lacking; with
basolateral sulcus deep, narrow, long, coarsely ;etatcnup with ventral margin subangulate, not
;etanirac with sides unevenly subparallel, moderately subquadrately expanded in apical ;2/l
eborts visible from above only at point of insertion, glabrous, reaching eye, dorsal margin
gnihcaer eye tsuj evoba ,elddim yllasab htiw lartnev nigram thgiarts ro tsomla ,os gniteem1artsor
margin at very acute angle; with scales dense in basal 2/3, subgranulate, contiguous and
,suougitnocbus ,dettip ,dnuor cillatem dna hsiyarg ,nworb erom ylesraoc etalunargbus dna dettip
basally; with scales sparser apically, subgranulate, not contiguous, pitted, round, metallic; with
,suoremun ylediw dna ylmrofinu ,decaps ,tnebmucerbus ,tnedive delruc ;eates htiw esraocesogur
serutcnup elbisiv htaeneb selacs ni lasab l/2, htiw serutcnup gnimoceb resraps dna renif.yllacipa
Head ylkaew ;xevnoc gnillews ediseb eye ;gnikcal seye yletaredom ,xevnoc muidem ;dezishtiw
scales coarsely granulate, contiguous, pitted, round, brown and white; with plumose scales
yellowish brown, on articulating area and behind eyes. Supraocular setae few, long, distinct,
suberect, curved, slender, ates like, linearly arranged. Frons without submedian setae; broad,
85.0 sa ediw sa daeh ssorca ,seye tahwemos ,denettalf ton ,desserpmi ton tes ffo morf murtsoryb
;noisserpmi htiw naidem ,aevof aevof ,wollahs .egral Antennae detresni tsuj dniheb lacipa l/3,
8
C. W. O’BRIEN, I. S. ASKEVOLD & K. MORIMOTO
inserted laterally; scape moderately long, moderately slender, subclavate; scape and funicle
hsidder ;nworb elcinuf ,trohs 65.0 sa gnol sa ,epacs htiw tnemges 1 ,tuots tnemges 2 ,rednels1
and 2 lauqebus ni ,htgnel 6-3 ,trohs 7 trohs dna ylgnorts ;esrevsnart tnemges 7 reworrannaht
first club segment, with pubescence of segment 7 distinctly denser than other segments,
distinctly separated from club; club broad-oval, uniformly pubescent, segment 1 shorter than
stnemges ,4-2 09.0 sa gnol sa ,elcinuf hsidder .kcalb Pronotum ylkaew ,esrevsnart 88.0 sagnol
as broad; with sides sinuately subparallel, not expanding from base; with apical constriction
moderate, in apical ,6/l without longitudinal carinae, dorsally distinct and uniform; laterally
weakly rounded behind constriction, with sides slightly impressed behind round area; lacking
pit near margin of prosternal sulcus; with median sulcus indistinct, very narrow, incomplete;
forming subapical and lasabbus ,snoisserpmi htiw lasabbus impression moderately small, weak,
moderately shallow; with apical impression small, weak, shallow; with median carina lacking;
htiw csid ylesrevsnart yletaredom ,xevnoc ton ,etaludnu ton esogur ro ;esolugur htiw lacipadna
lanigram eates ,suoremun yletaredom ,tcnitsid ,gnol ,tcerebus ,devruc ;enif htiw anirac fo lasab
nigram ;gnikcal htiw aera fo esomulp selacs fo lasab ytivilced ,daorb xevnoc dna ;tcnitsidhtiw
scales coarsely granulate and rugulose, finely pitted, subcontiguous, round, black; with three
vittae, with median vitta moderately broad, interrupted, indefinite, uneven, pale brown; with
lateral vittae narrow, obliquely angled, pale brown; with indefinite dark brown lateral maculae
no ;csid htiw sedis elap hsiyarg ,nworb htiw etinifedni hsikcalb nworb ;ealucam htiwralucotsop
lobes moderately developed, not deeply excavated below, reddish brown. Prosternal sulcus
moderately deep, broad, strongly narrowed at apical constriction, biangulate; with side margins
yletaredom ylprahs ,desiar htiw laretal nigram tsuj ni tnorf fo eaxoc laretal( )weiv ,etucabushtiw
laretal nigram rehtien yltcnitsid gnitcejorp daretsop revo eaxocerof ron tneb .drawni Scutellum
.llams Elytra lellarapbus dniheb iremuh ot ;ytivilced 44.1 sa gnol sa ediw ssorca ;iremuhhtiw
disc area flat; with declivity at 60 degrees (in relation to dorsal plane); markedly wider than
prothorax; with apices nonacuminate, conjointly moderately emarginate; with humeri -llew
,depoleved yleuqilbo ,etalugna ,etuca-non tahwemos ;’decudorp htiw lasab nigram erom ro ssel
flat, at most slightly swollen adjacent to scutellum; with odd-numbered intervals very slightly
more convex and elevated, not broader than even-numbered intervals, with interval 3 more or
less uniformly elevated; with setae of odd-numbered intervals conspicuous, long, suberect,
curled, fine, pale, each surrounded by scales of same color as other scales; even-numbered
intervals unevenly flattened, interval 2 not impressed; intervals 3-5 on disc slightly sinuately-
sided; disc weakly transversely angulately impressed across basal ,3/l disc not undulating;
antedeclivital swelling of interval 3 lacking; declivital callus of interval 5 well-developed,
,etalugna lativilcedetna gnillews fo lavretni 5 ;gnikcal ecneulfnoc fo slavretni 3 dna 9;nellows
strial grooves distinct, deep, narrow; with punctures small, moderately elongate, narrow, deep,
not wider than strial grooves; scales granulate, contiguous and imbricate, finely pitted, round,
arranged irregularly, with three or more scales across intervals, brown, whitish and black;
fasciate-maculate; humeri with macula pale whitish brown; antedeclivital callus or area of
lavretni 3 htiw alucam hsiyerg ;etihw lativilced sullac ro aera of interval 5 with macula white;
otherwise with scattered whitish brown maculae, in part forming several transverse fasciae,
remainder blackish brown; cuticle black. Metathoracic wings fully developed. Abdominal
sterna with punctures lacking (only granules), scales finely pitted. Sternum 1 with median
impression moderately deep, broad and narrow, continuous for entire length, not deeper
WEN ESENAPAJ BAGOUS 9
apically, narrowed apically, not continued on sternum 2; apical margin not declivous; 1.23 as
long as 2; suture between 1 & 2 bisinuate, uniformly deep. Sternum 2 convex; apical 215
,suovilced ton desserpmi no ;ytivilced 37.1 sa gnol sa 3 & 4 together; with transverse row of
scarcely evident (often denuded) subrecumbent coarse setae. Sternum 5 with pair of lasabbus
laretal ,snoisserpmi htiw naidemocipa aera ylkaew ,xevnoc yllasab ylesrevsnart ,xevnoc tuohtiw
;selcrebut htiw laretal snoisserpmi yrev ,wollahs llams dna ;etagnole htiw eno riap folaretalocipa
setae, suberect, coarse; I 74. sa gnol sa 3 & 4 ,rehtegot 58.0 sa gnol sa ,2 96.0 sa gnol sa .1
-oseM and metastemum with punctures not forming large concavities; mesosternal process
large, subtriangular between ;eaxoc htiw selacs ;esomulp mumetsatem 31.1 sa gnol samunrets
1. Legs moderately short; femora clavate, reddish brown. Tibiae slender, reddish brown, with
inner margin bisinuate, with outer margin slightly arcuate toward apex (in lateral view); with
xepa ton ;deworran htiw renni ecafrus htiw selcitned ,lareves ,tcnitsid tuots dna ,llamseaibiterof
lacking both large acute denticles or spur, denticles of midtibiae like those of foretibiae; with
several moderately short bristles on inner surface, with short, inconspicuous bristles on outer
surface; with uncus moderately long, moderately stout, lauqebus ot htdiw fo 1aibit apex; hind
tibiae as strongly arcuate as fore- and midtibiae, with denticles like fore- and midtibiae, with
eerht eates no renni .ecafrus israT moderately short, sublinear; reddish brown; tarsomeres l-3
slightly widened toward apex; tarsomere 3 not wider at apex than 2, sublinear, subtruncate;
seremosrat yllartnev htiw esraps ot ,esned tnebmucerbus ot tnebmucer ,ecnecsebup yllasrodhcae
htiw riap fo lacipa lasrod .seltsirb Length, mutonorp dna :nortyle 51.2 .mm
Female. -- Not known.
Genitalia and Associated Structures. -- MALE. Median lobe with dorsal surface excluding
laicifiro ,aera ylluf ;dezitorelcs htiw lartnev ecafrus ylluf ;dezitorelcs yrev ylthgilslacirtemmysa
drawot ;xepa tsediw ta ,ecifiro yllaudarg detcirtsnoc dniheb lasrod ;ssecorp htiw xepa,etagnole
more or less triangular, apical margin broadly and uniformly rounded, slightly subapically
constricted; with apex in lateral view slender, with extreme apex bluntly rounded; with -tsop
orificial dorsal process directed vertically, with lates brush situated anteromedially; with dorsal
surface behind dorsal process with broad, deep depression, with lateral margin behind dorsal
process markedly acute; with dorsal surface behind dorsal process fully and uniformly
;dezitorelcs htiw lasabosrod nigram ,tcnitsid ylpeed ;etanigrame htiw lasabortnev nigram,tcnitsid
deeply emarginate. Orifice triangular, somewhat elongate; with proximal margin concealed by
lasrod .ssecorp Apodemes ,tsubor ,trohs gnivruc ylgnorts ,drawni 11.0 sa gnol sa naidem.ebol
Internal sac. laicifirO setirelcs gnikcal dna tuohtiw lanretni.setirelcs
Intraspecific Variation. -- eziS egnar 51.2 .mm nwonK morf eht epytoloh.ylno
Etymological Note. -- sihT tehtipe si desab no eht noitanibmoc fo .B fractus, a ylesolcdetaler
seiceps fo suogaB morf eht emas ,noiger dna eht nitaL xiffus -odes (= like, resembling), and
srefer ot eht ylemertxe esolc ecnalbmeser fo eht ygolohprom fo eseht owt.seiceps
Remarks and Comparative Notes. -- This species is most likely to be confused with .B
fractus, and except for the key characters these are nearly identical. It may also may be
desufnoc ylisae htiw B. f&odes. ,revewoH eht mutonorp fo eht rettal si .ac 4/3 sa gnol sadaorb
dna eht lartnev nigram fo eht murtsor si htob etalugnabus dna .etaniracbus sihT seiceps sitsom
ralimis ni latineg erutcurts ot B. fractus, among Japanese species. It is readily distinguishable
from that species by the less elongate apex of the median lobe, by the lack of a sublateral
angulate margin behind the dorsal process, by the acute lateral margin behind the dorsal