摘要
本文报道采自西藏的有瓣蝇类七个新种,均属花蝇科。正模标本都保存在中国科学院上海昆虫研究所。波叶地种蝇Delia sinuiforcipis,新种(图1—3).
In present paper,7 new species of anthomyiid flies from Xizang Autonomous District arc reported.All of the holotypes here described are kept in the Shanghai Institute of Entomology,Academia Sinica.1.Delia sinuiforcipis,sp.nov.(Figs.1-3)The new species is allied to D.conversata(Tiensuu),but differs from the latter in having the width of frons distinctly wider than diameter of front ocellus,width of interfrontalia twice that of parafrontalia,without dark median stripe on dorsum of abdomen;cereal plate pointed apically;surstylus conspicuously sinuous but broadened basal when it is seen in profile.Holotyde,Naqu,Xizang.2.Eutrichota(Eremomyia)latirubigena,sp.nov.(Figs.4-6):Body length 9mm.Eyes bare,frons about one third width of one eye width,no interfrontal bristle,supraorbitals 2 pairs,infraorbitals 7 pairs,interfrontalia red,parafrontaliae,parafacialiae and genac ferrous red,interfrontalia is twice width of a parafrontalia,parafacialia is 2.5 times as wide as width of 3rd antennal segment,the latter is 1.6 times as long as wide itself,arista bare;genae about thrice as high as eye height,upcurved genal setae arranged in 1 row;palpi black,haustellum dusted,it is 4 times as long as high itself;outer verticals recognizable,prestoma not protruded,upper parts of occiput haired.Scutum of thorax grayish fuscous,presulcal acrosticals 3,the second rather developed and the others hair-like,with 2-3 rows of small hairs between the rows of presulcal acrosticals,the distance between which rows is equal to that between dorsocentral and acrostical rows,only with 1 humeral,prealar longer than anterior noloplcural.No setulae on notopleura.Sternopleurals arranged in 1:2.Wings yellowish but yellow at base.Legs entirely black.Chaetotaxy of tibiae:t1 with 1 ad,2 pv;t2 with 1 ad,1 pd,2 pv and without av;t3 with 2-3av,3 ad,4-5 pd,no pv and without apical pv.Abdomen conic in dorsal view,grayish yellow dusted.Sixth tergite bare.Male terminalia as shown in the figures.Holotype,Anduo,Xizang.3.Hydrphoria venatiftirca,sp.nov.(Figs.7-10):Somewhat resembling H.frontata(Zett.)but differing in male genitalia:with a small angular process;on Literal lobe of 5th slerrnte,with 2 pairs of long setae on apical part of cereal plate,which pointed apically in caudal view,with apex of surstylus not so thin and pointed as in H.frontaia,with aedeagus conspicuously slender,forked and on the anterior margin a terminal piece is diverged submcdially.Holotype,paratypes 2,Naqu,Xizang.4.Lasiomma dasyommaturn,sp.nov.(Figs.11-13)Closely related to Lasiomma anthomyinum(Rondani),but(he new species is easily distinguishable from it by having calypterae white,inner margin of surstylus sinuous,lateral margin of anal cerci straight,etc.Holotype,paratypes 3,Lasa,Xizang.5.Pegohylemyia aculeifurca,sp.nov.(Figs.14-16)Resembling Pegohylemyia sonchi Hardy,but differs in male terminalia,such as the bristles and hairs on lateral lobes of 5th sternite thin and fine;of anal cereal plate,both lateral and median processes pointed in caudal view,the latter about 2/3 times length of the former;of surstylus,the inner twig digitate and blunt apically,where as the out twig sinuous in apical half in profile.Holotype,Cuona,Xizang.6.Pegohylemyia amedialis,sp.nov.(Figs.17-19)Allied to Pegohylemyia brunneilinea(Zettcrstedt),and differentiated from the latter in male terminalia by having lateral lobes of 5th sternite rather sparsely hairy on outer margins;anal cerci rather broad and shortened,hind margin shallowly emarginate;inner margin of surstylus suppressed in middle part and projected angularly in apical part in caudal view.Holotype,Yadong,Xizang.7.Pegohylemyia anthracimetopa,sp.nov.
作者
钟应洪
Zhong Yinhong(Team of Epidemic Prevention,Legistics Department of Xizang Military Region,PLA,Lasa)
关键词
有瓣蝇类
花蝇科
西藏
新种
Calypt crate-flics
Anthomyiidae
Xizang
New species