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 3.6.3 Phasia australiensis Sun , sp. nov. (Figures I­9, II­8.2) TYPE MATERIAL Holotype ♀ , [ AUSTRALIA ], WA, Newmanns Rocks, 50km W Balladonia Motel, 19.i.1986 , G. and A. Daniel (MV); paratypes , 1♀ , [ AUSTRALIA ], [ Tasmania ], Risdon, 27.2.116, C. Cole (MV); 1♀ , [ AUSTRALIA ], Queensland , Stanthorpe, 15.x.1925 (UQIC); 1♀ , [ AUSTRALIA ], SA [ South Australia ], Great Vict., Dersert, Vehicle net bet, 158 ­ 183km S Vokes Hill Corner, Dunes+Interdunes, 29.viii.1980 , J. Forrest (SAMA). DESCRIPTION Body length: 6.5­7.5 mm . FEMALE: HEAD . Head spherical or nearly so. Eyes separated by a distance as wide as single ocellus. Fronto­orbital plate black, greyish yellow pruinose, 1­2 rows of hairs laterally. Frontal vitta triangular, brown. Frontal vitta at base of antennae 2.5 times as wide as fronto­orbital plate anteriorly. Ocellar setae present but fine; outer vertical setae absent; inner vertical setae absent. Face black; greyish yellow pruinose. Parafacial black, greyish yellow pruinose, bare, as wide as first flagellomere. Lower margin of face projecting, visible in profile, orange yellow, greyish yellow pruinose. Vibrissa not differentiated; intervibrissal distance 1.1 times distance between vibrissa and eye on same side; facial ridge with bristles on lower 1/3. Gena brown, greyish yellow pruinose; hairs white; height 0.12 times eye height. Lunule black and shining; sublunular bulla indistinct. Antenna black; first flagellomere 1.2 times as long as pedicel; arista thickened on basal 0.66. Length of oral opening 2.7­2.8 times its width. Occiput flattened, white pruinose; hairs white. Palpus brown. THORAX . Mesoscutum thinly grey pruinose, without black longitudinal vitta, with fine black hairs. 0+1(2) acrostichal seta; 1+1 dorsocentral setae; 2 postpronotal setae; presutural supra­alar seta present, strong; 1 postsutural intra­alar seta; 2 notopleural setae; 1 supra­alar seta; 2 postalar setae. Pleuron thinly grey pruinose; hairs and white black. Anepimeral setae hair­like, black; 2 katepisternal setae; 6­7 meral setae. Scutellum black, thinly grey pruinose, with two pairs of marginal setae; apical setae present and distinct; discal setae randomly arranged, not in rows. Subscutellum not very prominent. WING . Lower calypter hyaline white. Wing base without scale­like setae. Tegula black. Basicosta brown. Wing hyaline, narrow; petiole of apical cell 0.23 times as long as preceding section of R 4+5 ; M meeting R 4+5 at acute angle. Halter brown. LEGS . Fore femur black; hairs black. Fore tibia black, without bristles, apically with 1 d . Fore tarus black. Fore claws black; 0.9 times as long as fifth tarsomere. Pulvilli brown. Mid femur black; hairs black. Mid tibia black, with 1 ad and 1 v , apically with 1 ad , 1 av , 1 pv , 1 p , 1 pd , 1 v and 1 d . Hind femur black; hairs black. Hind tibia black, with 4 pd and one row of ad . Anterior spine­like setae of hind tibia well developed. ABDOMEN . Pruinosity grey present, but very thin; longitudinal vitta absent. Relative length of abdominal tergites I+II:III:IV:V = 1.2:1:1:0.9; relative width I+II:III:IV:V = 0.5:1:1:0.8. Hair spots of tergites IV and V indistinct. Sternite VII (sheath) longer than sternite VI, apex flattened laterally, narrow apically, not bent, apex straight. Ovipositor bent upward. MALE: Unknown. HOST Unknown. ETYMOLOGY This specific name refers to the Australian distribution of Phasia australiensis .