Phasia barbifrons species­group
Creators: name: Sun, Xuekui
name: Marshall, Stephen A.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Phasia
Phasia barbifrons
Phasia barbifrons species­Group

description: Key to species of the Phasia barbifrons species­group 
 (The males of Phasia malaisei, Phasia sichuanensis, Phasia wangi and Phasia frontata and the female of Phasia serrata are unknown) 
1. Male.............................................................................................................................. 2 
­ Female.......................................................................................................................... 5 
2. Genal groove well developed....................................................................................... 3 
­ Genal groove not developed......................................................................................... 4 
 3. Antenna long, at least 1/2 facial height, almost reaching vibrissal angle; syncercus deeplynotchedposteriorly;eyesseparatedbyadistancegreaterthanwidthofocellartriangle.......................................................................................  P. bifurca Sun, new species ♂ 
 ­ Antenna shorter, less than 1/2 facial height; syncercus shallowly notched posteriorly; eyes separated by a distance less than width of ocellar triangle........................................................................................................  P. rohdendorfi (Draber­Mo ń ko, 1965) ♂ 
 4. Surstylus broadly flattened; apex of cercus without sawtooth........................................................................................................................  P. barbifrons (Girschner, 1887) ♂ 
 ­ Surstylus not broadly flattened; apex of cercus with sawtooth..............................................................................................................................  P. serrata Sun, new species ♂ 
5. Sternite VII bent, apex directed ventrally.................................................................... 6 
­ Sternite VII straight or slightly bent upward................................................................ 7 
 6. Apex of sternite VII strongly bent ventrally; sheath thick...........................................................................................................................  P. sichuanensis Sun, new species ♀ 
 ­ Apex of sternite VII slightly bent ventrally; sheath thin and canoe­like............................................................................................................  P. malaisei Sun, new species ♀ 
7. Eyes touching............................................................................................................... 9 
­ Eyes separated.............................................................................................................. 8 
 8. First flagellomere long, almost reaching vibrissal angle, 1.6­1.7 times as long as pedicel; distance between eyes equal to width of ocellar triangle...............................................................................................................  P. bifurca Sun, new species ♀ 
 ­ First flagellomere short, less than 1.5 times as long as pedicel; distance between eyes less than width of ocellar triangle..............  P. rohdendorfi (Draber­Mo ń ko, 1965) ♀ 
 9. SterniteVIIlaterallyflattened,1.8times as longassterniteVI;genalgroovewelldeveloped........................................................................................  P. wangi Sun, new species ♀ 
 ­ Sternite VII dorsoventrally flattened, less than 1.4 times as long as sternite VI; genal groove not developed.................................................  P. frontata Sun, new species ♀
description: Published as part of Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), pp. 1-320 in Zootaxa 276 (1) on pages 47-48, DOI: 10.11646/zootaxa.276.1.1, http://zenodo.org/record/5019510