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

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 data as holotype. Paratype:5♂,5♀,same data as holotype. Distribution:China (Yunnan). Relationship:This species resembles Lordiphosa nigricolor (Strobl,1898),but differs from it in the diagnosis characters,especially in the complicated structure of aedeagal basal finger-shaped process. Etymology:Referring to femora dark brown to black except for terminal parts. 2 Lordiphosa ludianensis sp.nov.(Fig.2) Diagnosis:Epandrium (Fig.2A) protrused slightly at the middle of the caudal margin.Paramere (Fig.2:B,C) not branched,long,slightly sclerotized,dilated basally,with ca.4 sensilla on ventral margin.Aedeagus(Fig.2:B,C) double branched,bifurcated submedially at dorsal part of each branch,finger-shaped at the tips,dorsal process shorter;aedeagal basal process with 2 very long finger-shaped processes caudoventrally.Hypandrium pubescent at the caudodorsal corner. Male Terminalia:Epandrium(Fig.2A) with ca.10 setae laterally to dorsally and ca.9 setae on caudoventral margin.Surstylus(Fig.2A) with ca.16 dark brown,apically round primary prensisetae.Cercus (Fig.2A) with ca.17 setae.Gonopods (Fig.2:B,C) with an apically round process at caudoventral margin.Apodeme (Fig.2:B,C) dark brown,approximately three times as long as aedeagus. Holotype:♂,Ludian,Lijiang County,Yunnan Province,China,alt.ca.3 050 m,13-Ⅵ-1994,coll.ZHANG Wen-Xia. Paratype:1♂,same data as holotype. Distribution:China (Yunnan). Relationship:This species resembles the foregoing new species in the structure of surstylus and finger-shaped aedeagal basal processes,but it can be distinguished from it by the diagnosis characters,especially by the structure of paramere. Etymology:Pertaining to the type locality. 3 Lordiphosa shii sp.nov.(Fig.3) Diagnosis:Cercus (Fig.3A) tapering ventrally,with a tuft of stout spines on caudoventral corner,ca.9.Epandrium (Fig.3A) narrow and pointed ventrally,with an apically pointed process at the middle of caudal margin.Paramere (Fig.3:B,C)long,bow-shaped in lateral view,ventrally recurved process arched;caudally recurved process bifurcated,ventral branch broad,apically pointed,slightly curved outwards at the tip,strongly sclerotized,with ca.4 long sensilla on dorsal margin and ca.1 sensilla on ventral margin;dorsal branch slender,longer than both aedeagus and ventral branch,with long hairs at the tip. Male Terminalia:Epandrium (Fig.3A) broad,pubescent except for anterior margin and the ventral and central processes;with ca.18 setae laterally to dorsally;with ca.8 setae on ventral process.Surstylus (Fig.3A) somewhat rectangular,with ca.20 primary prensisetae in concave row on nearly entirely length of distal margin;with a tuft of long stout spines on inner surface and ca.7 setulae caudoventrally.Cercus (Fig.3A) oval,pubescent only on anterior margin,with ca.19 setae;tapering ventrally,with a tuft of stout spines on narrow ventral margin.Hypandrium (Fig.3:B,C) somewhat rectangular,narrower at ventral 1/3 part,pubescent caudoventrally,with a pair of long paramedian spines.Gonopods (Fig.3:B,C) fused,surrounding aedeagus and parameres.Aedeagus (Fig.3:B,C) slender,with micro-hairs on somewhat swollen tip,with transparent membrane-like stucture caudoventrally.Apodeme (Fig.3:B,C) broad in lateral view,approximate ly one and a half as long as aedeagus. Female Terminalia:Oviscapt (Fig.3D) apically round,submedially broad,with ca.15 apically round marginal and ca.8 apically pointed lateral ovisensilla.Spermatheca (Fig.3E) oblate,introvert deep,nearly reached into the inner tip of spermatheca.Introvert smooth,duct wrinkled. Holotype:♂,Pianma,Lushui County,Yunnan Province,China,22-Ⅵ-1994,coll.ZHANG Wen-Xia. Allotype:1♀,same data as holotype. Paratype:1♀,same data as holotype. Distribution:China (Yunnan). Relationship:This species belongs to nigricolor species-group,but differs from the foregoing two species and L.nigricolor (Strobl,1898) in that it has no serrated,conical or finger-shaped aedeagal basal process,it can be distinguished from other species in this species-group by the diagnosis characters. Etymology:shii,in memory of Prof.SHI Li-Ming,Kunming Institute of Zoology,the Chinese Academy of Sciences.