Systematics of Phasia Latreille (Diptera: Tachinidae) Author Sun, Xuekui Author Marshall, Stephen A. text Zootaxa 2003 2003-08-29 276 1 1 320 https://biotaxa.org/Zootaxa/article/view/zootaxa.276.1.1 journal article 10.11646/zootaxa.276.1.1 1175­5334 5019510 4177F6E7-B276-438E-8E49-EE5ECD84D351 Key to the world species­groups of Phasia 1. Dorsal facets of eye same size as ventral facets.............................................................. Phasia varicolor species­group ( Oriental , Australasian, Afrotropical and Neotropical) ­ Dorsal facets of eye larger than ventral facets ............................................................. 2 2. Fronto­orbital plate bare laterally (as in Figs. I­5.2, I­13.2) ........................................ 3 ­ Fronto­orbital plate haired laterally (as in Figs. I­1.2, I­2.2) ....................................... 4 3. Lower margin of face enormously prominent, face deeply concave in profile (as in Figs. I­13.1, I­15.5); sublunular bulla always well developed; subscutellum extending well beyond the scutellar apex (as in Fig. I­31.4); male sometimes with scale­like setae on wing base and femur .. Phasia argentifrons species­group (Southern Hemisphere) ­ Lower margin of face weakly to moderately prominent (as in Figs. I­23.1, I­33.1); sublunular bulla usually not developed; subscutellum evenly rounded, not extended beyond the scutellar apex; male without scale­like setae ............................................... ........ Phasia pusilla species­group (worldwide except Australasian and Afrotropical) 4. Frons swollen (as in Figs. I­10.1, I­11.1­2); lower margin of face perpendicular, or only slightly projecting........................................................................................... ................................ Phasia barbifrons species­group (Palaearctic, Oriental, Mexico ) ­ Frons not swollen; lower margin of face well projecting ............................................. 5 5. Fronto­orbital plate densely haired, haired area sometimes reaching eye or nearly so (as in Figs. I­1.1­2., I­26.1­2.) ........................................................................................ .................................. Phasia hemiptera species­group (worldwide except Australia ) ­ Fronto­orbital plate with only a few rows of hairs, usually less than 3­4; never reaching eye (as in Figs. I­3.2, I­58.2)... Phasia subcoleoptrata species­group (worldwide)