Phasia fenestrata ( Bigot, 1889 )

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 170-172

3.6.7 Phasia fenestrata ( Bigot, 1889)

(Figures I­19, II­7.2)

Alophora fenestrata Bigot, 1889: 137 ­ Coquillett, 1897: 46.

Phorantha bidwelli Hine, 1902: 229 .

Alophora magnapennis Johnson, 1904: 19 .

Paraphasia fenestrata: Townsend, 1915: 20, 1938: 63 ­ Brooks 1945: 656 (redescription).

Phasia phasiatrata Smith, 1915: 98 ­ Townsend 1916: 128.

Phasia fenestrata: Sabrosky and Arnaud 1965: 969 (catalog).

DESCRIPTION

Body length: 7­11 mm.

MALE: HEAD. Head compressed anteriorly. Vertex 0.2 times as wide as head width. Fronto­orbital plate black with grey pruinosity, 2­3 row of hairs laterally. Frontal vitta black. Frontal vitta at base of antennae 1.5 times as wide as fronto­orbital plate anteriorly. Ocellar setae present but fine; outer vertical setae present; inner vertical setae absent. Face yellow, or brown, grey pruinose. Parafacial brown, grey pruinose, bare, 1.8­2.0 times as wide as first flagellomere. Lower margin of face projecting, visible in profile, orange yellow, grey pruinose. Vibrissa not differentiated; intervibrissal distance 1.4­1.8 times distance between vibrissa and eye on same side; facial ridge with bristles on lower than 1/5. Gena brown to black with grey pruinosity; hairs white; height 0.2 times eye height. Lunule black and shining; sublunular bulla indistinct. Antenna black, or pedicel yellow or brown; first flagellomere black, 1.1 times as long as pedicel; arista thickened on basal 1/5­1/4. Length of oral opening 0.4­0.5 times its width. Occiput flattened, white pruinose; hairs white. Palpus yellow, or brown.

THORAX. Mesoscutum strongly yellow or yellowish grey pruinose, with 4 black longitudinal vittae, and fine black hairs. 0+1 acrostichal seta; 0+1 dorsocentral seta; 2­3 postpronotal setae; presutural supra­alar seta present, strong; 1 postsutural intra­alar seta; 2 notopleural setae; 1 supra­alar seta; 2 postalar setae. Pleuron grey and yellow pruinose; hairs white and yellow. Anepimeral setae hair­like, black; 1 katepisternal seta; 5­8 meral setae. Scutellum black with grey pruinosity, with two pairs of marginal setae; apical setae present and distinct. Subscutellum not very prominent. WING. Lower calypter hyaline white. Wing base without scale­like setae. Tegula black. Basicosta yellow. Wing hyaline or pictured, narrow or broad; petiole of apical cell 0.25­0.33 times as long as preceding section of R 4+5; M meeting R 4+5 at acute angle, or almost at right angle. Halter yellow or brown. LEGS. Fore femur brown, upper part black; ventrally and laterally with whitish yellow hairs, dorsal surface with black hairs. Fore tibia brown to black, without bristles, apically with 1 p and 1 d. Fore tarus black. Fore claws brown, apex black; 1.4­1.5 times as long as fifth tarsomere. Pulvilli brown. Mid femur brown, upper part black; ventrally and laterally with whitish yellow hairs, dorsal surface with black hairs. Mid tibia yellow or brown, with 1 ad and 1 v, apically with 1 av, 1 pv, 0­1 p, 1 v and 1 d. Hind femur brown, upper part black; whitish yellow or black hairs. Hind tibia yellow or brown, arched, with several strongly setae.

ABDOMEN. Abdominal tergites black, but with yellow spot or area; pruinosity absent, or present (silvery); longitudinal vitta absent. Relative length of abdominal tergites I+II:III:IV:V = 1.5:1:1:1.5; relative width I+II:III:IV:V = 1:2.3:2.3:2. Syntergite I+II shiny, or pruinose. Pruinosity of tergites III, IV, V absent, or present (silvery or yellow); hair spots indistinct. TERMINALIA. Syncercus broad, posterior notch shallow and circular. Surstylus slender, longer than cercus. Phallapodeme longer than hypandrium. Postgonite triangular, pointed apically. Pregonite small, reduced, with sparse hairs dorsally. Phallus long and broad, with dense fine hairs dorsally. Distiphallus partly sclerotized, with a pair of teeth apically.

FEMALE. Body size slightly smaller than male. Wing hyaline. Vertex 0.1­0.12 times as wide as head width; Eyes not touching. Anterior spine­like setae of hind tibia absent. Sternite V short and broad. Sternite VII (sheath) slightly shorter than sternite VI, broad flattened; broad apically; bent, apex directed ventrally; smooth ventrally; median area membranous. Ovipositor bent upward.

TYPE MATERIAL

Alophora fenestrata Bigot, 1889 . Holotype ♂, [ USA], [Nevada], "Ex: Bigot Coll., B.M. 1960­539" [no more data] (BMNH, examined).

Phasia phasiatrata Smith, 1915 . Holotype ♀, [ USA], Massachusetts, Cohasset, 30.vi.1914, R.T. Webber (USNM, No.19238, examined).

OTHER MATERIAL EXAMINED

CANADA. Alberta: Calgary, 1.v.1926, O. Bryant (1♂, DEBU). Northwest Territories: Wrigley, 3.vi.1969, G.E. Shewell (1♀, CNCI). Ontario: Arkell, 13.v.1986, E.A. Lippert (1♂, LACM); Beaulieu, St­Hilaire, 24.v.1906 (2♂, CNCI); Bell's Corners, 8­9.v.1951, J.F. McAlpine (2♂, CNCI); Chatterton, 24.v.1956, J.C. Martin (1♀, CNCI); Constance, 15.v.1934, G.S. Walley (1♂, CNCI); Dornoch (3km NW), 8.v.1990, J.E. O'Hara (1♀, CNCI); Grey Co., [?], Griffith (7mi E), 9­27.vi.1983, B.E. Cooper (3♂, CNCI); Guelph, near Kortright Pk., 18.v.1993, W. Bennett (1♀, DEBU); Guelph, 18­21.iv.1973, 10.v.1973, 12.v.1987 and 28.iv­v.1987, E.A. Lippert, R.P. Macfarlane and V. Goline (4♂ 2♀, DEBU, AMNH); Lanark Co., N. Burgess Twp, 26.iv.1970, D.M. Wood (1♂, CNCI); Markdale, 2.vi.1993, S.A. Marshall (1♂ 1♀, DEBU); Metcalfe, 7­ 31.v­15.vi.1983, 12.v.1986, 29.v.1993, B.E. Cooper (11♂ 19♀, CNCI); Mississippi Lk., 15.v.1991, L. Masner (2♂, CNCI); Niagara, 21.vi.1939, (1♂, CNCI); Ottawa, 24.vi.1919 et al, A. Brooks (2♂, AMNH, CNCI); Ottawa, nr. Uplands Airport, 21­28.v.1992, J.M. Cumming (1♂, CNCI); Rockwood, 27.iv.1963, D.B. Stoltz (1♂, DEBU); Toronto, 23.vi.1983 (1♀, DEBU). Quebec: Aylmer, 1.vi.1924, C.H. Curran (1♀, AMNH); Gatineau Co., Masham Twp., 28.v.1978, D.M. Wood (1♂, CNCI); Hull, 24.v.1923, C.H. Curran (1♂, CNCI); Laniel, 24.v.1934, C.E. Atwood (1♂, CNCI); Montreal Isl., 29.v.1904 (1♂, USNM); Rigaud, 15.v.1991, J.E. O'Hara (1♀, CNCI); Summit Mt. Rigaud, 30.iv.1986 and 15.v.1991, D.M. Wood and B.E. Cooper (1♂ 1♀, CNCI). USA. District Of Columbia: Rock Greek, 16­ 25.iv, F. [flowers of] Antennaria, C.H.T. Townsend (3♂ 5♀, USNM, CNCI); 19.iv.1918, C.H.T. Townsend (1♀, BMNH). Indiana: Tippecanoe., 12.iv.1956 (1♂, USNM). Kansas: Douglas Co., 11.viii.1950, R.H. Pine (1♂, USNM); Lawrence, 16.iv.1922, C.H. Curran (1♂, CNCI); Labette Co., Oswego, 10.iv.1965, G.F. Hevel, (1♂, USNM); Pottawatomie Co., 29.iv.1955, McReynolds (2♀, KSUC). Michigan: Agr. Coll., 21.iv.1922, L.G. Gentner (1♀, CNCI); Eaton Co., 13.vi.1937 and 5.vi.1927, R.R. Dreisbech (2♀, CNCI); Washtenaw Co., 10.vi.1954, S. Keller (1♂, USNM). New York: Cayuga, 8.v.1935, H.K. Townes (1♂ 1♀, CNCI); Caroline, 6.v.1919, E.G. Anderson (5♂, USNM, CUC, CNCI, BMNH); Caroline, (1♂, BMNH); Ithaca, v. and 7.v.1932 and 23.iv.1934, R.C. Shannon and L.S. West (3♂ 3♀, CNUC, USNM, CNCI); Owego, 24.iv. 1935 and 2.iv.1922, L.S. West etc. (1♂ 1♀, CNUC); North Carolina: Raleigh, 21, iv.1906, C.S. Brimley (1♂, USNM); Pennsylvania: Wilawana, 10.vi.1935, R.H. Crandall, (2♂, AMNH). Virginia: Fairfax Co., Dead Run, 26.iii.1925, R.C. and E.M. Shannon (1♂, USNM); Falls Church, 26.iv.1914 (1♂, USNM); Great Falls, 20.iv.1916, 19.iv.1915 and 23.v.1918, W.L. McAtee and C.T. Greene (1♂ 3♀, USNM); Mount Vernom, 16.iv.1916, A. Wetmore (2♂, USNM); U. of Richmond, 1.v.1936, C.C. Walton (1♂, USNM); Vienna, 6­7.iv.1942, J.C. Bridwell (1♂ 1♀, USNM).