Descriptions of four new species of Chrysotimus Loew from Tibet (Diptera: Dolichopodidae)

2006·0.24 MB·

by  Mengqing Wang

©EntomologicaFennica.16June2006
Descriptions of four new species of Chrysotimus Loew
from Tibet (Diptera: Dolichopodidae)
MengqingWang&DingYang*
Wang,M.&Yang,D.2006:DescriptionsoffournewspeciesofChrysotimus
LoewfromTibet(Diptera:Dolichopodidae).—Entomol.Fennica17:98–104.
TheoccurrenceofthegenusChrysotimusLoew,1857inTibetisconfirmedfor
thefirsttime.Thefollowingfourspeciesaredescribedasnewtoscience:Chryso-
timusbifurcatussp.n.,C.grandissp.n.,C.liisp.n.andC.linzhiensissp.n.Akey
isgiventodistinguishtheChinesespeciesofthegenus.
M. Wang and D. Yang (correspondent author), Department of Entomology,
ChinaAgriculturalUniversity,Beijing100094,China
Received26January2005,accepted15July2005
1.Introduction Inthispaper,wedescribefourspeciesnewto
science,allfoundfromTibet,anarealyinginthe
The genus Chrysotimus Loew, 1857 belongs to SouthwestofChina,onthenorthernsideofHi-
thesubfamilyPeloropeodinae.Thegenusisgen- malayas, and bordered with Pakistan, India,
erally characterized by the yellow or yellowish Burma,Nepal,andBhutan.Theareabelongsto
hairs and bristles, small first flagellomere, hind thePalaearcticandOrientalRealms.Perhapsthe
tarsomere1inmostmalesbearingseveralshort high-altitude climate is responsible for the re-
erect black ventral bristles at base, and mid strictedoccurrenceofthesefourspecies.Wealso
tarsomere1inmaleatleastaslongastarsomeres provideakeytoChrysotimusspeciesmalesfrom
2–4.60specieswereknowntooccurintheHol- China.
arctic and Oriental Realms. Previously, there
were 8 species known from the Palaearctic
(Negrobov1991)and2speciesfromtheOriental 2.Materialandmethods
Realms(Becker1922,Dyte1975).Sofar25spe-
cieshavebeenknownfromChina(Parent1944, The specimens for this study were collected by
Wang et al. 2005, Yang 2001, Yang & Saigusa Fasheng Li (Beijing) from Tibet in 1978 by
2001a,2001b,2005,Zhangetal.2003). sweepnetting,andaredepositedintheEntomo-
Guzeriplia Negrobov, 1968 embodies the logicalMuseumofChinaAgriculturalUniversity
charactersofChrysotimusLoewintheheadand (CAU),Beijing.Allmaterialispreservedin75%
thoraxwithyellowhairsandbristlesandbiseriate alcohol.
acr.However,inGuzeriplia,thehypopygiumis Abbreviations are as follows: acr = acro-
large (almost as long as abdomen), bearing the stichal,ad=anterodorsal,av=anteroventral,dc=
long surstylus and cercus. Bickel (2004) noted dorsocentral,LI=foreleg,LII=midleg,LIII=
thatitshouldbewithintherangeofvariationof hindleg,oc=ocellar,pd=postero-dorsal,ph=
thelatter,probablyasasynonymy. posthumeral,pv=posteroventral,v=ventral.
ENTOMOL.FENNICAVol.17 (cid:127) FournewspeciesofChrysotimusfromTibet 99
3.KeytospeciesofChrysotimusLoew Hairs and bristles on thorax brownish or
fromChina(males) brown 13
12.Foretarsomere1withrowofabout10v;hind
1. Hind tarsomere 1 at most with sparse black tarsomere1with22shortblackventralbris-
bristlesatbase 2 tlesonbasal1/4;surstylusbasallywithoutin-
Hindtarsomere1withbundle(s)ofblackven- nerprocess.Gansu
tralbristlesatbase 8 chikuniWang,Yang&Grootaert,2005
2. Hindtarsomere1withoutblackventralbris- Fore tarsomere 1 without row of v; hind
tlesatbase(notknowningrandis) 3 tarsomere 1 with less than 20 black ventral
Hindtarsomere1withblackventralbristlesat bristlesonbasal1/4;surstylusbasallywithin-
base 5 nerprocess.Hubei,Shaanxi,Yunnan
3. Cercusdividedintoouterandinnerlobes 4 shennongjianusYang&Saigusa,2001
Cercussingle.China. 13.Hind tarsomere 1 with about 12 short black
sinensisParent,1944 ventral bristles; surstylus not furcated api-
4. Acrabsent;midtarsomere1shorterthanthe cally.Yunnan
tarsomeres 2–5; epandrium with nearly bispinusYang&Saigusa,2001
quadrate lateral process. Guangxi Hindtarsomere1with15–16shortblackven-
guangxiensisYang&Saigusa,2001 tral bristles; surstylus furcated apically.
Six to seven irregularly paired acr; mid Guangxi
tarsomere 1 longer than the tarsomeres 2–5; xuaeWang,Yang&Grootaert,2005
epandrium with long hook-like lateral pro- 14.Acr2–4pairs 15
cess.Tibet. grandissp.n. Acrmorethan5pairs 22
5. Antenna with scape and pedicel yellow. 15.Hind tarsomere 1 with group of 8–12 black
Zhejiang basiflavusYang,2001 basal bristles at base (which are somewhat
Antennawhollyblack. 6 sparse),butwithoutdistinctv. 16
6. Fivedc;acrabsent.Zhejiang Hind tarsomere 1 with 1 (or 2) bundles of
apicicurvatusYang,2001 blackbasalventralbristles,androwof7–8pv
Sixdc;acrpresent 7 18
7. Four to five irregularly paired acr; hind 16.CuAx ratio about 0.2; lateral process on
tarsomere1with6sparseblackventralbris- epandriumnotconcavenearmiddle 17
tlesonbasal1/4.Guangdong CuAx ratio 0.35; lateral process on
acutatusWang,Yang&Grootaert,2005 epandrium concave near middle. Yunnan
Nine to ten irregularly paired acr; hind yunlonganusYang&Saigusa,2001
tarsomere1with2sparseblackventralbris- 17.Firstflagellomereaslongaswide;hindtibia
tlesatbase.Ningxia withoutdistinctv.Tibet liisp.n.
ningxianusWang,Yang&Grootaert,2005 Firstflagellomereabout1.5timeswiderthan
8. Fourorfivedc;acrabsent 9 long;hindtibiawith2pv.Tibet
Sixdc;acrpresent 14 linzhiensissp.n.
9. Aristadorsal;hypandriumwithbroadlateral 18.R4+5andMparallelapically;hindtarsomere
process.Zhejiang 1withbundleof4–5blackventralbristlesat
dorsalisYang,2001 base 19
Aristasub-apical;hypandriumwiththinfin- R4+5 and M slightly convergent apically;
ger-likelateralprocess 10 hindtarsomere1with2bundlesof3–4black
10.Hindtarsomere1with3–4shortblackspine- ventralbristlesatbase.Shaanxi
like ventral bristles at base. Beijing bifasciaYang&Saigusa,2005
songshanusWang,Yang 19.Hairs and bristles on thorax yellow or pale;
&Grootaert,2005 surstylusonepandriumnotfurcatedapically
Hind tarsomere 1 with about (or more than) 20
10blackventralbristlesatbase 11 Hairsandbristlesonthoraxbrown;surstylus
11.Hairsandbristlesonthoraxyellow 12 on epandrium furcated apically. Guangxi
100 Wang&Yang (cid:127) ENTOMOL.FENNICAVol.17
sanjiangyuanusWang,Yang tarsomere1with15–16blackventralbristles.
&Grootaert,2005 Yunnan pingbianusYang&Saigusa,2001
20.Fore tarsomere 1 without rowed v; hind 28.Hindtarsomere1with12shortblackventral
tarsomere1with4–5blackventralbristlesat bristles;8irregularlypairedacr;cercuswith
base 21 round apex; palpus dark brown. Yunnan.
Fore tarsomere 1 with row of 5–6 v; hind incisusYang&Saigusa,2001
tarsomere 1 with 8 black ventral bristles at Hindtarsomere1with7–8shortblackventral
base.Guangdong bristles;6irregularlypairedacr;cercuswith
guangdongensisWang,Yang acute apex; palpus yellow. Yunnan
&Grootaert,2005 lijianganusYang&Saigusa,2001
21.Hind femur with row of ad and pd; cercus
longandnarrow.Beijing
xiaolongmensisZhang,Yang 4.Descriptionsofnewspecies
&Grootaert,2003
Hind femur without distinctly d; cercus Chrysotimusbifurcatussp.n.(Fig.1)
round.Shaanxi
unifasciaYang&Saigusa,2005 Material examined. Holotype #: China: Tibet,
22.Hindtarsomere1withrowofabout10pv. 23 Bomi,Jieda,3050ma.s.l.,16.VII.1978,leg.F.Li
Hindtarsomere1withoutdistinctv 26 (Beijing).
23.Hind tarsomere 1 with 10–12 black ventral Diagnosis.Allcoxaeyellow.6–7irregularly
basalbristles;midtibiawithoutdistinctv 24 pairedacrshortandhair-like. Hindtarsomere1
Hindtarsomere1withabout20blackventral withgroupof10–12shortblackventralbristles
basalbristles;midtibiawith1pv. 25 on basal 1/5, and row of 8–9 pv. Cercus bifur-
24.Firstflagellomeresomewhatround,2.0times cated.
wider than long; cercus not furcated, dorsal Description.Male.Headmetallicgreenwith
lobeonsurstylusthickandstraight.Shaanxi
qinlingensisYang&Saigusa,2005
Firstflagellomeresubtriangular,aboutaslong
aswide;cercusbifurcated,dorsallobeonsur-
stylusthinandcurved.Tibet bifurcatussp.n.
25.Foreandmidtarsomere1withoutdistinctv;
epandrium basally with short process.
Shaanxi setosusYang&Saigusa,2005
Foreandmidtarsomere1eachwithrowof5–
6v;epandriumbasallywithlongbroadpro-
cess.Guangdong
xiaohuangshanusWang,Yang
&Grootaert,2005
26.Hindtarsomere1with1bundleofshortblack
ventral bristles; surstylus rather wide and
thick;hypandriumwithsmallapicalincision
27
Hindtarsomere1with2–3bundlesof14–15
blackventralbristlesonbasal1/6(whichcon-
tains1–2smalltightbundlesand1largeloose
bundle);surstylusnarrowfinger-like;hypan-
drium without apical incision. Yunnan
digitatusYang&Saigusa,2001
Fig.1.Chrysotimusbifurcatussp.n.,male.a.First
27.Hairsandbristlesonthoraxpaleoryellow 28 flagellomere,lateralview.b.Wing.c.Genitalia,lateral
Hairsandbristlesonthoraxdarkbrown;hind view.
ENTOMOL.FENNICAVol.17 (cid:127) FournewspeciesofChrysotimusfromTibet 101
palegraypollen.Hairsandbristlesonheadyel- about 10 black basal ventral bristles on hind
low.Ocellartubercleweak,with2verylongoc tarsomere1,butcanbeseparatedfromthelatter
and2veryshortposteriorhairs.Antennabrown; bytheepandriumwithslendersurstylusandbi-
pedicel with circle of brown apical hairs; first furcated cercus. In qinlingensis, the surstylus is
flagellomere subtriangular (Fig. 1a), about 0.6 thickandstraight,andthecercusisnotfurcated
timesaslongaswide;aristadorsal,brown,with (Yang&Saigusa2005).
veryshortpubescence.Proboscisblackish,with Distribution.KnownonlyfromTibet.
brownishhairs;palpusyellow,withyellowhairs
and2yellowapicalbristles.
Thoraxmetallicgreenwithpalegraypollen, Chrysotimusgrandissp.n.(Fig.2)
mesonotum and scutellum brilliant. Hairs and
bristlesonthoraxyellow;6strongdc,6–7irregu- Material examined. Holotype #: Tibet: Bomi,
larly paired acr, short and hair-like; scutellum Jieda,3700ma.s.l.,12.VIII.1978,leg.F.Li(Bei-
with2pairsofbristles.Propleuronwith1yellow- jing).
ishhairand1yellowishbristleonlowerportion. Diagnosis.Palpusblackish.6strongdc,6–7
Legsyellow,all5thtarsomeresbrown.Hairs irregularly paired acr short and hair-like. Mid
andbristlesonlegsyellow;coxaewithyellowish tarsomere1longerthanthetotallengthofcorre-
hairsandbristles;forecoxawith6–8yellowbris- spondingtarsomeres2–5.Surstylusofepandrium
tles, mid coxa with 2–4 anterior bristles, hind withlargeswollenapex.
coxawith1yellowouterbristlenearmiddle.Fore Description.Male.Headmetallicgreenwith
femur with 2 av apically, mid and hind femora palegraypollen.Hairsandbristlesonheadyel-
eachwith1avand1pvapically.Firsttibiawith
rowofshortpd,apicallywith3shortbristles;mid
tibiawith2adand2–3pd,apicallywith4bristles;
hindtibiawith1adand2pd,apicallywith3bris-
tles.Midtarsomere1with2–3v,hindtarsomere1
withgroupof10–12shortblackventralbristles
onbasal1/5,androwof8–9pv.Relativelengths
oftibiaand5tarsomeresoflegsLI2.8:1.5:0.6:
0.5:0.3:0.4;LII3.5:1.8:0.7:0.6:?:?(the
questionmarksmeanbrokensegments);LIII3.8:
1.4:0.9:0.6:0.3:0.4.
Winghyaline(Fig.1b);veinsbrownish,R4+5
andMparallelapically;CuAxratio(lengthofm-
cu/lengthofdistalportionofCuA)0.24.Squama
brownishyellowwithpalehairs.Halteryellow.
Abdomenmetallicgreenwithpalegraypol-
len,dorsumbrilliant.Hairsandbristlesonabdo-
menyellow.
Malegenitalia(Fig.1c).Epandriumdistinctly
longerthanwide,withroundleaf-likelateralpro-
cess; surstylus slender, with acute apex; cercus
somewhatround,bifurcatedapically,onebranch
shortandround,anotherbranchlongfinger-like;
hypandriumshortandbroad.
Size.Body1.3mm,wing1.7mm.
Female.Unknown.
Remarks. Chrysotimus bifurcatus sp. n. is
Fig.2.Chrysotimusgrandissp.n.,male.a.Apicalhalf
similar to Chrysotimus qinlingensis Yang & ofwing.b.Genitalia,lateralview.c.Genitalia,ventral
Saigusa from Qinling in having row of pv and view.
102 Wang&Yang (cid:127) ENTOMOL.FENNICAVol.17
Fig.3.Chrysotimusliisp.n.,male.a.Firstflagellomere(notincludingapicalsegmentofarista),
lateralview.b.Wing.c.Genitalia,lateralview.
low.Ocellartubercleweak,with2longocand2 Female.Unknown.
shortposteriorhairs.Antennabroken.Proboscis Remarks.Chrysotimusgrandissp.n.issome-
blackish, with brownish hairs; palpus blackish, what similar to Chrysotimus ningxianus Wang,
withyellowhairs. Yang & Grootaert from Ningxia in having the
Thoraxmetallicgreenwithpalegraypollen, longmidtarsomere1,butcanbeseparatedfrom
mesonotum and scutellum brilliant. Hairs and the latter by the following features: 6–7 irregu-
bristlesonthoraxyellow;6strongdc,6–7irregu- larly paired acr, mid tarsomere 1 longer than
larlypairedacrshortandhair-like;scutellumwith tarsomeres2–5,andsurstyluslargewithswollen
2 pairs of bristles. Propleuron with 1 yellowish apex;inningxianus,9–10irregularlypairedacr,
hairand1yellowishbristleonlowerportion. midtarsomere1nearlyaslongastarsomeres2–5,
Legs [fore tarsus, hind tibia and tarsus bro- andsurstylusslender(Wangetal.2005).
ken]yellow;midtarsomere5brown. Hairsand Distribution.KnownonlyfromTibet.
bristles on legs yellow; coxae with yellowish
hairsandbristles;forecoxawith4–6yellowbris-
tles, mid coxa with 2–4 anterior bristles, hind Chrysotimusliisp.n.(Fig.3)
coxawith1yellowouterbristlenearmiddle.Mid
femurwith1avand1pvatapex.Midtibiawith2 Material examined. Holotype #: Tibet: Bomi,
ad and 3 pd, apically with 4 bristles. Mid Jieda, 3050m a.s.l., 16.VII.1978, leg. F. Li.
tarsomere1longerthanthetotallengthofcorre- Paratypes 2 ##: Tibet: Linzhi, 1.–3.VI.1978,
sponding tarsomeres 2–5. Relative lengths of leg.F.Li(Beijing).
tibiaand5tarsomeresoflegsLI3.2:?:?:?:?:?; Diagnosis. First flagellomere subtriangular,
LII4.0:2.7:1.0:0.6:0.3:0.5. aslongaswide.Hindtarsomere1withgroupof
Winghyaline(Fig.2a),veinsbrownish,R4+5 10–11shortblackventralbristlesonbasal1/6.
andMparallelapically;CuAxratio0.2.Squama Description.Male.Headmetallicgreenwith
brownishyellowwithpalehairs.Halteryellow. palegraypollen.Hairsandbristlesonheadyel-
Abdomenmetallicgreenwithpalegraypol- low.Ocellartubercleweak,with2longocand2
len,dorsumbrilliant.Hairsandbristlesonabdo- short posterior hairs. Antenna brown; pedicel
menyellow. with circle of brownish apical hairs; first
Male genitalia (Figs 2b–c). Epandrium dis- flagellomere subtriangular (Fig. 3a), as long as
tinctlylongerthanwide,somewhatsquare,with wide; arista [apical segment broken] dorsal,
long hook-like lateral process; surstylus with brownish,withveryshortpubescence.Proboscis
largedorsallobe,thickbaseanddistinctlyswol- blackish, with brownish hairs; palpus pale yel-
len apex, and long curved ventral lobe; cercus low,withyellowhairsand2brownishapicalbris-
longandbifurcated,outerlobewithapexwider tles.
thanbase,withseveral(about7–8)palelongsoft Thoraxmetallicgreenwithpalegraypollen,
apical hairs, inner lobe long and acute; mesonotum and scutellum brilliant, pleuron
hypandriumthinandshort,symmetricalinven- brownwithpalepollen.Hairsandbristlesontho-
tralview. raxyellow;6strongdc,3–4irregularlypairedacr
Size.Body1.3mm,wing1.6mm. shortandhair-like;scutellumwith2pairsofbris-
ENTOMOL.FENNICAVol.17 (cid:127) FournewspeciesofChrysotimusfromTibet 103
tles.Propleuronwith1yellowishhairand1yel-
lowishbristleonlowerportion.
Legsyellow,all5thtarsomeresbrown.Hairs
andbristlesonlegsyellow;coxaewithyellowish
hairsandbristles;forecoxawith2yellow bris-
tles, mid coxa with 2–4 anterior bristles, hind
coxa with 1 yellow outer bristle at middle. Mid
andhindfemoraeachwith1avand1pvatapex.
Midtibiawith2adand2pd;hindtibiawith2ad.
Hindtarsomere1withgroupof10–11shortblack
ventralbristlesonbasal1/6.Relativelengthsof
tibiaand5tarsomeresoflegsLI3.7:2.0:0.9:0.6
:0.4:0.5;LII4.7:2.6:1.0:0.7:0.4:0.4;LIII5.0
:2.3:1.1:0.8:0.5:0.5.
Winghyaline(Fig.3b);veinsbrownish,R4+5
andMparallelapically;CuAxratio0.22.Squama
brownishyellowwithpalehairs.Halteryellow. Fig.4.Chrysotimuslinzhiensissp.n.,male.a.Wing.
b.Firstflagellomere,lateralview.c.Genitalia,lateral
Abdomenmetallicgreenwithpalegraypol-
view.
len,dorsumbrilliant.Hairsandbristlesonabdo-
menyellow.
Malegenitalia(Fig.3c).Epandriumdistinctly low.Ocellartubercleweak,with2verylongoc
longer than wide, with wide lateral process; and2veryshortposteriorhairs.Antennabrown;
surstyluswithroundapex,with3longapicalbris- pedicel with circle of brown apical hairs; first
tles; cercus long and rather narrow apically; flagellomere rather wide (Fig. 4b), about 1.5
hypandriumshortandbroadwithroundapex. timeswiderthanlong;aristadorsal,brown,with
Size.Body1.6mm,wing2.5mm. short pubescence. Proboscis blackish, with
Female.Unknown. brownishhairs;palpuspaleyellow,withyellow
Remarks. Chrysotimus lii sp. n. is similar to hairsand2yellowapicalbristles.
Chrysotimus bifascia Yang & Saigusa from Thoraxmetallicgreenwithpalegraypollen,
Qinling in having the pale yellow palpus and mesonotum and scutellum brilliant, pleuron
brown5thtarsomere,butcanbeseparatedfrom brownwithpalepollen.Hairsandbristlesontho-
the latter by the hind tarsomere 1 with 10–11 raxyellow;6strongdc(thefirstdcshorter),4ir-
black ventral bristles at base and the first regularly paired acr, short and hair-like;
flagellomereaslongaswide.Inbifascia,thehind scutellumwith2pairsofbristles.Propleuronwith
tarsomere 1 just has 3–4 black ventral bristles, 1yellowishhairand1yellowishbristleonlower
and the first flagellomere is about 0.6 times as portion.
longaswide(Yang&Saigusa2005). Legsyellow,all5thtarsomeresbrown.Hairs
Distribution.KnownonlyfromTibet. andbristlesonlegsyellow;coxaewithyellowish
hairsandbristles;forecoxawith4yellow bris-
tles, mid coxa with 2–4 anterior bristles, hind
Chrysotimuslinzhiensissp.n.(Fig.4) coxa with 1 yellow outer bristle at middle. Mid
andhindfemoraeachwith1avand1pvapically.
Material examined. Holotype #: Tibet: Linzhi, Midtibiawith2adand1pd;hindtibiawith1–2
3050ma.s.l.,3.VI.1978,leg,F.Li(Beijing). ad,1pdand2pv.Hindtarsomere1withgroupof
Diagnosis. Palpus pale yellow. Legs yellow 13shortblackventralbristlesonbasal1/6.Rela-
with 5th tarsomeres brown. Hind tarsomere 1 tivelengthsoftibiaand5tarsomeresoflegsLI
with group of 13 short black ventral bristles on 4.0:2.1:1.0:0.6:0.4:0.5;LII4.7:2.7:1.1:0.8
basal1/6. :0.4:0.4;LIII4.8:2.1:?:?:?:?.
Description.Male.Headmetallicgreenwith Winghyaline(Fig.4a),veinsbrownish,R4+5
palegraypollen.Hairsandbristlesonheadyel- andMparallelapically;CuAxratio0.25.Squama
104 Wang&Yang (cid:127) ENTOMOL.FENNICAVol.17
brownishyellowwithpalehairs.Halteryellow. Bickel,D.J.2004:Alishania,anewgenuswithremarkable
Abdomenmetallicgreenwithpalegreypol- female terminalia from Taiwan, with notes on
Chrysotimus Loew (Diptera: Dolichopodidae). —
len,dorsumbrilliant.Hairsandbristlesonabdo-
BishopMus.Bull.Ent.12:27–34.
menyellow.
Dyte,C.E.1975:FamilyDolichopodidae.—In:Delfi-
Male genitalia (Figs. 4c). Epandrium dis- nado,M.D.&Hardy,D.E.(eds.),Acatalogofthe
tinctlylongerthanwidewithwidelateralprocess; Diptera of the Oriental region, 2: 212–258. Hawaii
surstyluscurveddownward,roundapically,with UniversityPress,Honolulu.618pp.
3apicalbristles;cercusroundwithyellowmar- Loew,H.1857:NeueBeitrezurKenntnissderDipteren.F
fter Beitrag. — Programm K. Realschule Meserit,
ginal bristles and hairs; hypandrium short and
1857:1–6.
broad.
Negrobov, O. P. 1991: Family Dolichopodidae. — In:
Size.Body1.8mm,wing2.6mm. Soós,Á.&Papp,L.(eds.),CatalogueofPalaearctic
Female.Unknown. Diptera7:11–139.AkadiaiKiadBudapest.291pp.
Remarks. Chrysotimus linzhiensis sp. n. is Parent, O. 1944: Diptères Dolichopodidae recueillis en
similar to Chrysotimus yunlonganus Yang & ChinedeNord,enMongolieetenMandchourieparle
P.P.E.Licent.—Rev.Fr.Ent.10(4):121–131.
Saigusa from Yunnan in having the short first
Wang,M.,Yang,D.&Grootaert,P.2005:Chrysotimus
flagellomereand3–4pairedacr,butcanbesepa-
Loew from China (Diptera: Dolichopodidae). —
ratedfromthelatterbythehindtarsomere1with Zootaxa1003:1–32.
13 black ventral bristles at base and curved Yang,D.2001:Diptera:Dolichopodidae.—In:Wu,H.&
surstylus. In yunlonganus, the hind tarsomere 1 Pan,C.(eds.),InsectsoftheTianmushanMountain:
just has 8 sparse black ventral bristles, and the 428–441.SciencePress,Beijing.764pp.[InChinese.]
Yang,D.&Saigusa,T.2001a:Newandlittleknownspe-
surstylusisnotcurved(Yang&Saigusa2001b).
ciesofDolichopodidiae(Diptera)fromChina(VIII).
Distribution.KnownonlyfromTibet.
—Bull.Inst.RoyalSci.Nat.Belg.Ent.71:155–164.
Yang,D.&Saigusa,T.2001b:Newandlittleknownspe-
Acknowledgements. The authors wish to thank Mr. ciesofDolichopodidiae(Diptera)fromChina(IX).—
FashengLi(Beijing)forcollectingspecimensandhelpin Bull.Inst.RoyalSci.Nat.Belg.Ent.71:165–188.
manyways.ThisstudywassupportedbytheNationalNat- Yang,D.&Saigusa,T.2005:Diptera:Dolichopodidae.—
uralScienceFoundationofChina(No.30225009). In: Yang, X. (ed.), Insect Fauna of Middle-West
QinlingRangeandSouthMountainsofGansuProv-
ince:740–765.SciencePress,Beijing.1055pp.[In
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