Phasia brachyptera Sun, 2003

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 27-28

3.2.2 Phasia brachyptera Sun , sp. nov.

(Figures I­12, II­1.4)

TYPE MATERIAL

Holotype ♂, [ AUSTRALIA], Victoria, Thomson River, 7 km NNW Walhalla, 26.vi.1976 (MVNH); paratypes, 1♂, [ AUSTRALIA], [Tasmania] Eaglehawk Neck, 22.iv.1957, C. Cole (MVNH); 1♂, [ AUSTRALIA], [N.S.W.], Bronte, 13.xi.1953, D.K. McAlpine (AMSA).

DESCRIPTION

Body length: 4.5 mm.

MALE: HEAD. Head compressed anteriorly. Eyes separated by a distance narrower than ocellar triangle, but wider than ocellus. Fronto­orbital plate black with grey pruinosity. Frontal vitta black, triangular. Frontal vitta at base of antennae 2.8 times as wide as fronto­orbital plate anteriorly. Ocellar setae present but fine; outer vertical setae present; inner vertical setae absent. Face black with grey pruinosity. Parafacial black with grey pruinosity, bare, 0.8 times as wide as first flagellomere. Lower margin of face black, yellowish grey pruinose. Vibrissa well differentiated; intervibrissal distance 2.2­2.4 times distance between vibrissa and eye on same side; facial ridge with bristles on lower 1/6. Gena black with grey pruinosity; hairs white; height 0.1 times eye height. Lunule black and shining. Antenna black; first flagellomere 1.3 times as long as pedicel; arista thickened on basal 1/5. Length of oral opening 3.5­3.8 times its width. Occiput flattened, greyish yellow pruinose; hairs black. Palpus brown.

THORAX. Presutural area of Mesoscutum grey pruinose, postsutural area black shining, with fine black hairs. 0+1(2) acrostichal setae; 0+1 dorsocentral seta; 1­2 postpronotal setae; presutural supra­alar seta present, but fine; 0­1 postsutural intra­alar seta; scale­like; 1 supra­alar seta; 2 postalar setae. Pleuron thinly grey pruinose; hairs black; and with scale­like setae. Anepimeral setae medium size; black; 1 katepisternal seta; 8­9 meral setae. Scutellum black, shining, without pruinosity, with one pair of marginal setae; apical setae absent; discal setae arranged in one row. Subscutellum very prominent. WING. Lower calypter brown to black. Wing base with scale­like setae. Tegula black. Basicosta yellow. Wing pictured on basal 1/2 only, broad; petiole of apical cell less than 0.25 times as long as preceding section of R 4+5; M meeting R 4+5 almost at right angle. Halter yellow.

LEGS. Fore femur black; ventrally and laterally with whitish yellow hairs, dorsally with black hairs. Fore tibia black; without bristles, apically with 1 v, 1 p and 1 d. Fore tarus normal; black. Fore claws black; as long as fifth tarsomere. Pulvilli brown. Mid femur black; ventrally and laterally with whitish yellow hairs, dorsally with black hairs. Mid tibia black; with 1 ad and 1 v, apically with 1 a, 1 v and 0­1 d. Hind femur black; hairs black; scale­like setae absent. Hind tibia black, with 5­6 ad and 2­4 pd.

ABDOMEN. Abdominal tergites black, with yellow spot or area; pruinosity absent; longitudinal vitta absent; abdomen spherical; lateral margin of tergites with scale­like setae and grey pruinosity. Relative length of abdominal tergites I+II:III:IV:V = 1.3:1:1:1.2; relative width I+II:III:IV:V = 0.3:1:1:0.8. TERMINALIA. Syncercus bridge­like; apex bent downward. Surstylus straight, slender, longer than cercus. Hypandrium extremely broad, longer than phallapodeme. Ejaculatory apodeme long, fan­like. Pregonite short, apex rounded. Postgonite triangular, apex pointed, longer than pregonite. Phallus shorter than hypandrium, without fine hairs dorsally. Distiphallus swollen, partly sclerotized.

FEMALE. Unknown.

HOST

Unknown.

ETYMOLOGY

The specific name refers to the relatively short wings of this species.