Phasia sensua ( Curran, 1927 ) Sun & Marshall, 2003

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 45-47

3.2.11 Phasia sensua ( Curran, 1927) , comb. nov.

(Figures I­54, II­2.4)

Strongylogaster sensua Curran, 1927: 354 .

Hyalomyia lativentris Malloch, 1929: 110 , syn. nov.

Hyalomyia sensua: Malloch 1930: 98 .

Alophora (Mormonomyia) lativentris: Crosskey 1973: 110 (catalog) ­ Cantrell and Crosskey 1989: 735 (catalog).

Alophora (Mormonomyia) sensua: Crosskey 1973: 110 (catalog); ­ Cantrell and Crosskey 1989: 735 (catalog).

DESCRIPTION

Body length: 4.0 mm.

MALE: HEAD. Head spherical or nearly so. Eyes touching. Fronto­orbital plate black, greyish yellow pruinose. Frontal vitta triangle, reddish brown. Frontal vitta at base of antennae 1.4 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, greyish yellow pruinose, bare; 0.9 times as wide as first flagellomere. Lower margin of face black with grey pruinosity. Vibrissa well differentiated; intervibrissal distance 1.3 times distance between vibrissa and eye on same side; facial ridge with bristles on lower 1/10. Gena black with grey pruinosity; hairs white; height 0.1 times eye height. Lunule black and shining. Antenna black; first flagellomere 1.4 times as long as pedicel; arista thickened on basal 0.3. Length of oral opening 3.1 times its width. Occiput flattened, white pruinose; hairs black; median occipital sclerite bare. Palpus black.

THORAX. Mesoscutum thinly greyish yellow pruinose, with fine black hairs. 0+1 acrostichal seta; 0+1 dorsocentral seta; 1 postpronotal seta; presutural supra­alar seta present, but fine; 0­1 postsutural intra­alar seta; 2 notopleural setae; 1 supra­alar seta; 2 postalar setae. Pleuron grey and yellow pruinose; hairs black; and without scale­like setae. Anepimeral setae strongly; black; 1 katepisternal seta; 6­7 meral setae. Scutellum black; greyish yellow pruinose, with two pairs of marginal setae; apical setae present and distinct; discal setae arranged in 2­3 rows. Subscutellum very prominent. WING. Lower calypter hyaline white. Wing base without scale­like setae. Tegula black. Basicosta brown. Wing hyaline, narrow; petiole of apical cell 0.45 times as long as preceding section of R 4+5; M meeting R 4+5 almost at right angle. Halter yellow, or brown. LEGS. Fore femur black, swollen. Fore tibia brown to black, without bristles, apically with 1 d. Fore tarus black. Fore claws brown; 1.1 times as long as fifth tarsomere. Pulvilli black. Mid femur black; hairs black. Mid tibia black, with 1 v, apically with 1 ad, 1 av, 1 pv, 1 pd, 1 v and 1 d. Hind femur black; hairs black; scale­like setae absent. Hind tibia slightly arched; black, with 3 pd and 4 ad.

ABDOMEN. Abdominal tergites black; longitudinal vitta absent; syntergite I+II and median area of tergite III purple shining, without pruinosity. Relative length of abdominal tergites I+II:III:IV:V = 1.1:1:1:1; relative width I+II:III:IV:V = 0.3:1:0.9:0.6. Pruinosity of tergites IV, V silvery; hair spots indistinct. TERMINALIA. Syncercus "H­like", with a Ushaped notch posteriorly, apex strongly bent ventrally. Surstylus flattened, slender, broadened on apical 1/3, bent dorsally. Ejaculatory apodeme small, knob­like. Hypandrium shorter than phallapodeme. Pregonite small, sparsely haired dorsally. Postgonite long, pointed. Phallus broad, 1.2 times as long as hypandrium, haired dorsally. Distiphallus straight, well sclerotized.

FEMALE. Wing hyaline. Eyes touching. Anterior spine­like setae of hind tibia present. Syntergite I+II and III shining, without pruinosity, tergites IV, V greyish yellow pruinose. Sternite VII (sheath) longer than sternite VI; narrow apically; slightly bent, apex directed dorsally; sternite VII with linear wrinkles ventrally. Ovipositor bent upward.

TYPE MATERIAL

Strongylogaster sensua Curran, 1927 . Holotype ♀, AUSTRALIA, Queensland, Palmerston (DEIC, not examined).

Hyalomyia lativentris Malloch, 1929 . Holotype ♂, AUSTRALIA, N. Queensland, Cairns (J.F. Illingworth Collection) (USNM, No. 41635, examined).

OTHER MATERIAL EXAMINED

AUSTRALIA. New South Wales: Cobar, 6.iii.1975, K. Grier (1♀, QDPC); Wilton, 12.1.1966, V.J. Robinson (1♀, NSWA); Sydney, Bridwell Collection, (1♀, USNM). Queensland: 1km Mt. Molloy, 15.iv.1980, G.F. Hevel and J.A. Fortin (1♀, USNM); Biloela, 6.xii.1926, E. Ballard (1♀, BMNH); Herberton, i.1911, (1♂, BMNH); Mission Beach, 128 km S Cairns, 19­20.i.1964, J. Sedlacek (1♂, BPBM); Mt. Tamborine, A.M. Lea (1♀, SAMA); N Somerset Cape York, 3.ix.1968, R.E. Tovey (1♂ 1♀, AMSA); N Townseville, 13.viii.1919, G.F. Hill (2♂ 2♀, SAMA); N Clare, 23.vi.1987, J.D. Brown (1♂ 1♀, QDPC); SE Flagstone Creek, 2.xii.1972, B. Cantrell (1♀, UQIC). South Australia: Clare, 23.vi.1987 and 25.v.1987, L. Kay, host: Eysarcoris trimaculatus . (2♂, QDPC). PHILIPPINES. Albay Province, Libon, Caguscos, 200m, 17­20.v.1965 (1♂ 2♀, BPBM, [1♂, labeled as light trap]). DOUBTFUL LOCALTY: "Illumild Tinillum (?), (1♀, ANIC)".

HOST

Eysarcoris trimaculatus (Distant) . (= Stollia trimaculatas ) ( Hemiptera , Pentatomidae ): ­ Australia (South Australia, new record).

NOTES

Phasia sensua is an Australasian species and was described by Curran (1927) based on a single female specimen. Hyalomyia lativentris , newly synonymised with Phasia sensua , was described by Malloch (1930) based on male specimens.