Phasia faceta Sun, 2003

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 129-130

3.5.3 Phasia faceta Sun , sp. nov.

(Figure I­18.6­10, II­6.2)

TYPE MATERIAL

Holotype ♀, PAPUA NEW GUINEA, NE Wau, Morobe Distr., 1,200m, 27.ii.1965, J. and M. Sedlacek, Malaise Trap (BPBM).

DESCRIPTION

Body length: 3.5 mm.

FEMALE: HEAD. Head spherical or nearly so. Eyes touching. Fronto­orbital plate black with grey pruinosity. Frontal vitta broad, black, triangular. Frontal vitta at base of antennae 6.5 times as wide as fronto­orbital plate anteriorly. Ocellar setae strong; outer vertical setae present; inner vertical setae absent. Face black with grey pruinosity. Parafacial black with grey pruinosity, bare, 0.2 times as wide as first flagellomere. Lower margin of face perpendicular, not projecting; black with grey pruinosity. Vibrissa well differentiated; intervibrissal distance 4 times distance between vibrissa and eye on same side; facial ridge with bristles on the lower 1/6. Gena black with grey pruinosity; hairs black; height 0.1 times eye height. Lunule black and shining; sublunular bulla indistinct. Antenna black; first flagellomere 1.4 times as long as pedicel; arista thickened on basal 0.35. Length of oral opening 2.1 times its width. Occiput flattened, greyish yellow pruinose; hairs black. Palpus black.

THORAX. Mesoscutum thinly pruinose (greyish brown), without black longitudinal vitta, with fine black hairs. 1+1 acrostichal setae; 1+2 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 black. Anepimeral setae medium size, black; 5 katepisternal setae; 3 meral setae. Scutellum black, brownish 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 black. Wing hyaline, narrow; petiole of apical cell 0.5 times as long as preceding section of R 4+5; M meeting R almost at right angle. Halter yellow. LEGS. Mid femur black; hairs black. Mid tibia black, with 1 p and 1 v, apically with 1 ad, 1 av, 1 pv, 1 p, 1 v and 1 d. Hind femur black; hairs black; scale­like setae absent. Hind tibia black, with one row of ad and 1 long pd. Anterior spine­like setae of hind tibia well developed.

4+5

ABDOMEN. Abdominal tergites black, with yellow spot or area (on basal lateral side); pruinosity absent. Relative length of abdominal tergites I+II:III:IV:V = 1.3:1:1:1; relative width I+II:III:IV:V = 0.5:1:1:0.6. Hair spots indistinct. Sternite VII (sheath) longer than sternite VI, tapered, laterally flattened in the middle, almost pointed apically, not bent; apex straight, sternite VII with linear wrinkles ventrally. Ovipositor bent upward.

MALE: Unknown.

HOST

Unknown.

ETYMOLOGY

Phasia faceta is named for the extremely large dorsal eye facets.