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• W2365883137 abstract "The genus Nepalonesia Kurahashi et Thapa,1994 belongs to the tribe Melanomyini of Calliphoridae.Up to now,7 species(including a new species)have been found in South-West China,namely N.dasysternita(Chen,Deng et Fan,1992),N.fanzidei Feng,2002,N.gibbosa(Chen,Deng et Fan,1992),N.gonggashanensis(Chen et Fan,1992),N.nigrella(Chen,Li et Zhang,1988),N.pygialis(Villeneuve,1937)comb.nov.and N.ventrexcerta sp.nov.,as well as 2 species from Nepal,namly N.pulchokii Kurahashi et Thapa,1994 and N.shinonagai Kurahashi et Thapa,1994.In this paper,a key to all the known species of the genus is given;one new species,N.ventrexcerta sp.nov.,is discribed and figured from China.Type specimens are kept in the lnstitute of Plant Physiology and Ecology,Shanghai lnstitutes for Biological Sciences,Chinese Academy of Sciences,Shanghai(200032),China.A key to species of the genus Nepalonesia(♂♂)1.Metacephala with brownish yellow hairs;proepisternal depression hairedN.nigrellaMetacephala black haired22.Lateral lobes of 5th sternite densely clothed with pale yellow to reddish hairs by inner margins;ac mostly(1-2)+33Lateral lobes of 5th sternite densely clothed with black hairs by inner margins;ac 1+(1-2)93.Pre ac 2,proepisternal depression haired4Pre ac 1,if it is 2,then the lateral lobes of 5th sternite densely clothed with yellow hairs by inner margins not quite long54.Lateral lobes of 5th sternite densely clothed with very long fine hairs by inner margins;cerci with separated part to fused part in the ratio of 4∶3 in length;surstylus with length to breadth in the ratio of 28∶17 in lateral viewN.dasysternitaLateral lobes of 5th sternite densely clothed with fine hairs not so long;cerci with separate part to fused part in the ratio of 11∶15 in length;surstylus with length to breadth in the ratio of 26∶9 in lateral viewN.gonggashanensis5.Proepisternal depression haired6Proepisternal depression bare76.Intraalar setae 0+3;in profile,cerci bent forward in an obtuse angle submediallyN.gibbosalntraalar setae 0+2;in profile,cerci gently curved forward preapicallyN.gonggashanensis7.Lateral lobes of 5th sternite densely clothed with long fine hairs,many of them with small bulb-like or scale-like tip as a pendant by inner margins8Lateral lobes of 5th sternite densely clothed with long fine hairs in usual form,without pendant formed ones by inner margins;ia 0+1,mid tibia with 1 pN.ventrexcerta sp.nov.8.Legs black;ia 0+2,mid tibia with 1 PN.fanzideiLegs brown;ia 0+1,mid tibia with o PN.pygialis9.5th sternite with proad and blunt lateral lobes,which shorter than the basal part;surstylus in profile with apical part as wide as the middle part,rounded apically and not curvedN.shinonagai 5th sternite with elongate and tapered lateral lobes,which longer than the basal part;surstylus in profile gradually narrowed toward apex and gently curved forwardN.pulchokiiNepalonesia ventrexcerta sp.nov.(Figs.1-6)♂.Body length 5.5-6.0mm.Body black.Eyes bare,frons narrower than anterior ocellus,frontal vitta(interfrontalia)obsolete at narrowest part,fronto-orbital plate(parafrontalia)linear,the latter and parafaciala grey dusted,parafrontalia with 7-8 frontal setae on lower half and with a few minute hairs on the upper,parafacialia is 1.2 times as wide as antennal flagellomere;antennae black,greyish with dusted on the flagellomere,the latter 2.5 times as long as wide,namely about twice long of the pedicellus,arista long plumose,bare in apical half;mid facial plate depressed,with a rudimentary facial carina,vibrissal angle slightly protruding beyond profrons or both on a vertical line;genal and postgenal hairs black,genal dilation not reaching by vibrissal angle,gena about a quarter as high as eye;palpi black and slender,prementum 5 times as long as own high,labella large.Thorax.Ground color dark,bluish grey dusted,lacking of distinct markings or stripes;prescutum with 8 rows of setulae on median portion,acrostichals 1+3,dorsocentrals 2+3,intraalars 0+2,posthumerals 1∶1,prealar seta is 1.5 times long of the posterior notopleural seta;scutellum concolorous with thorax,its median length slightly shorter than the length of scutellar sulcus,with a black median marking alone the fore margin,lateral to the scutellar marginals with 2-3 rows of small hairs,both lateral and ventral surface of scutellum haired,but bare on the median part of ventral surface;proepisternal depression and katepimeron(beret)bare,prothoracic basisternum,postalar wall(postalar declivity)and katatergite(inferior pleurotergite)haired;posterior spiracle in moderate size,brownish fuscous,katepisternal(sternopleura)setae 1∶1;anterior tuft of setulae on suprasquamal ridge present,but the posterior tuft on the same and tuft on tympanic pit both absent.Wings yellow,semihyaline,tegula black,basicosta yellow to dark brown,costal vein bare on ventral surface except for basal tow sections,costal spine short,radial stem vein bare,node of Rs haired above and below,R_4+5 vein bare above and below baselly,M vein deeply curved forward in apical part and the distal section of the curvation is 1.5 times long of the proximal one,cell 2R_5 opened just before the wing-tip,and the opening slightly narrower than the length of r-m cross-vein;dm-cu(m-m)cross-vein obliquely sinuous;upper calypter light brown,lower one brownish fuscous,loblated and bare on dorsal surface;halteres light brown.Legs wholly black;fore femur with 1 row each of pd and pv setae,between them 4-5 rows of setulae are present;fore tibia with 2 ad both fine and 1 P seta;mid femur with a medial a and 1 row of pv setae,in which the basal 4 longer than others;mid tibia with 1 ad and 1 av both on apical half as well as 2 P setae;hind coxa bare on posterior surface;hind femur with 1 sparse row of setae each on av and pv surface,of them every seta on basal half longer,and with 1 dense row of setae on ad_-surface;hind tibia with 4-5 av,3 ad and 2 pd;tarsi normal.Abdomen black with metallic shine and thinly greyish white dust;3rd to 5th tergites each decorated with a narrow black median vitta and with marginal setae,6th tergite with hind marginal hairs;lst sternite haired,the 2nd is slightly longer than own broad,1st to 5th sternites all uncovered by respective tergites;5th sternite remarkably projecting under the abdomen,with lateral lobes longer than the basal part and their posterior ends beyond the abdominal apex in situate and by inner margins of the lobes densely clothed with pale yellow curly-tipped long hairs,which compactly arranged each other,so they having an ocherous smoothish plank in appearance.Anal cerci distinctly shorter than the surstyli,phallosome with an epiphallus subbasal to basiphallus and longer than the latter,pregonite straightly rod-like,hypophallus expanding laterally when seen in posterior view.♀ Unknown.Holotype ♂,Mt.Erlang(Ganhaizi,2780m),3 July 1988.Paratypes:1♂,Ya'an(Mt.Jinfeng,860m),21 Aug.1983;1♂,Kangding(Mt.Paoma,2 800m),10 July 1983,all collected by FENG Yan,Sichuan,China.Bionomics.On the hot sunny summer days,the males were collected on leaves of Fargesia nitida,or on the gravelly stone covered with the bryophytes in forest of Pinus trees by the old mountainous passage for horse-tea trade.It were 23℃-32℃ in local air temperature and 28℃-40℃ on the earth surface simultaneously.Etymology.The species name is derived from the latin words ventr and excerta,referring to the male with an excerted ventrite(sternite)on 5th abdominal segment.This new species is similar to Nepalonesia fanzidei Feng,2002,but differs from the latter in:1)5th sternite densely pale hairy by inner margins of lateral lobes,among the hairs no pandent ones are present,but with numerous curvely-tipped hairs;2)hind tibia with 4-5 av.The new species is also similar to Nepalonesia pulchokii Kurahashi et Thapa,1994,but differs from the latter in:1)the inner marginal hairs of lateral lobe of 5th sternite pale yellow,not wholly black;2)cerci shorter than surstyli in posterior view;3)hind tibia with 4-5 av instead of 2-3." @default.
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• W2365883137 title "STUDIES ON THE GENUS NEPALONESIA WITH DESCRIPTION OF A NEW SPECIES(DIPTERA,CALLIPHORIDAE)" @default.
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