中国池蝇属三新种一新亚种记述(双翅目:蝇科)

DESCRIPTIONS THREE NEW SPECIES AND ONE NEW SUBSPECIES OF LIMNOPHORA R.-D.FROM CHINA(DIPTERA:MUSCIDAE)

本文报告了中国池蝇属三新种一新亚种:蒙古池蝇Limnophora mongolica n.sp.、壮鬃池蝇L.papulicerca pubertiseta n.ssp.、直叶池蝇L.surrecticerca n.sp.、西臧池蝇L.ti-betana n.sp.;模式标本存于中国科学院动物研究所。

This paper reports 4 Chinese species of the genvs Limnophora which are new to science. The type specimens are deposited in Institute of Zoology,Academia Sinica. 1.Limnophora mongolica Xue et Zhang,sp.nov.(figs.1-3) Body length 3.7mm.Close to Limnophora septentrionalis Xue,1984,butdiffers from the latter in having interfrontalia only 1/2 the parafrontalia width,2 rows of preacrostichal bristles,mid femur with 3 posteroventral setaenear base,which more than the biggest diameter of the femur,and one posterodorsal seta on apical part,fifth tergite with a brown spot,inner margins of lateral lobe of fifth sternite with 1 long bris- tle each other,branch of cerci wider,external projection on middle part distinctly, surstylus foot-shape on lateral view. Holytype ♂,Bameng prefceture,Chaoge,Neimenggu Autonomous Region,3.Ⅶ. 1972. 2.Limnophora papulicerca pubertiseta Xue et Zhang,ssp.nov.(figs.4-6) Body length 2.6 mm.Allied to Limnophora pubiseta Emden,1965,but,differs from the latter in having inferior orbitals reaching in front of anterior ocellar,parafa- cialia 1/2-2/3 width of 3rd antennal segment,scutum without brown median stripe, lower squamae brown,margins coarse,mid fenur with long posteroventral setae,1 pos- terior seta on apical part,mid tibia with 2 posterior setae. Holytype ♂,Mounts Emeishan,Jiulaodong wave,1800-1900m Sichuan Province, 5.Ⅶ.1957,taken by Huang Keren. 3.Limnophora surrecticerca Xue et Zhang,ssp.nov.(figs.7-9) Body length 5.0mm.It is allide to Limnophora furcicerca'Xue et liu,1990,but it differs from the latter in having hind tibia only with 1 anteroventral seta,abdomen with greyish pollen,pairs of brown spots on 3rd and 4th tergites smaller,close to trapezoid, first sternite bare,5th sternite rectangle,inner margin of lateral lobe on base without bristle-bundles,free part of cercus long,straight and thinner. Holytype ♂,Shiqian,Jinxing,Guizhou Province,23,Ⅶ.1988,taken by sun Xuekui;paratype 1 ♂,Anshun,Bandang,Guizhou.14,Ⅶ.1984.by Wei Lianmeng. 4.Limnophora tibetana Xue et Zhang,ssp.nov.(figs.10-12)