拱背果蝇属三新种记述(双翅目:果蝇科)  

Three New Species of the Genus Lordiphosa (Diptera:Drosophilidae)

作　　者：权陆军[1] 张文霞[1] 

机构地区：[1]北京大学生命科学学院,北京100871

出　　处：《Zoological Research》2001年第6期478-484,共7页动物学研究（英文）

基　　金：国家自然科学基金资助项目主任基金资助 ( 30 0 5 0 0 0 1)

摘　　要：记述了拱背果蝇属 (Lordiphosa)黑色拱背果蝇种组 (nigricolorspecies group) 3新种 :黑腿拱背果蝇 (Lordiphosanigrifemursp nov )、鲁甸拱背果蝇 (Lordiphosaludianensissp nov )和施氏拱背果蝇 (Lordiphosashiisp nov )。In this paper three new species of genus Lordiphosa were reported from Yunnan,China These three new species all belong to nigricolor species group.All of the types were deposited in College of Life Sciences,Peking University. 1 Lordiphosa nigrifemur sp nov.(Fig 1) Diagnosis:Femora dark brown to black except for terminal parts.Paramere(Fig 1:D,E) caudally bifurcated:dorsal branch approximately twice as long as ventral branch;anterior process small,ventral margin with ca .6 sensilla points medially.Aedeagus(Fig 1:D,E) double branched,bifurcated submedially at dorsal part of each branch,finger shaped at the tips,dorsal process shorter;aedeagal basal process connected to gonopod with membrane,bearing numerous finger shaped processes. Male Terminalia:Epandrium(Fig 1A) nearly entirely pubescent except for ventral and anterior margin,with ca .8 setae laterally and dorsally and ca .8 setae on caudoventral margin.Surstylus(Fig 1:A,B) with ca .12 dark brown,apically pointed primary prensisetae decreasing in size downward and arranging in convex row on nearly entire length of distal margin;with a few long stout spines on inner surface and 2 setulae caudoventrally.Cercus(Fig 1:A,C) oval,entirely pubescent,with ca .12 setae;tapering ventrally,with ca .5 stout spines in a row on caudoventral corner.Hypandrium(Fig 1:D,E) slightly triangular,without paramedian spines.Gonopods(Fig 1:D,E) fused,saddle shaped in lateral view,with slender process at caudoventral margin.Apodeme(Fig 1:D,E) broad terminally,dark brown,approximately twice as long as aedeagus. Female Terminalia:Oviscapt(Fig 1F) apically round,submedially broad,with ca .13 marginal and ca .7 apically pointed lateral ovisensilla.Spermatheca(Fig 1G) oblate,with shallow indentation on capsule;spermathecal duct introverted into the inner tip of spermatheca.The basal half of introvert and duct both wrinkled. Holotype:♂,Deqin,Yunnan Province,China,alt. ca .3?650?m,8-Ⅵ-1994,coll.ZHANG Wen Xia. Allotype:1♀,same

关 键 词：双翅目 果蝇科 拱背果蝇属 新种 

分 类 号：Q969.462.2[生物学—昆虫学]