Hydrotaea chalcogaster (Wiedemann)

Couri, Marcia S., Pont, Adrian C. & Daugeron, Christophe, 2010, The Muscidae (Diptera) of New Caledonia 2503, Zootaxa 2503 (1), pp. 1-61 : 24-25

14. Hydrotaea chalcogaster (Wiedemann)

Anthomyia chalcogaster Wiedemann, 1824: 52 . Lectotype male, without locality label (see Pont, 1973a), ZMUC, des. Pont (1973a: 242).

Ophyra chalcogaster ; Curran, 1929: 6; Sabrosky, 1949: 431.

Hydrotaea chalcogaster ; Pont, 1989 a: 676; Shinonaga et al., 1991: 330.

Diagnosis. Body colour metallic black, abdomen uniformly metallic black with no evident marks; posterior margin of eye straight; female with the crossed setae on frontal vitta closer to each other than to eye margin; antenna and arista dark, anterior katepisternal seta developed; notopleuron with ground setulae; male fore femur not modified; fore tarsomeres white ventrally, especially in male; wing entirely covered with microtrichia; male aedeagus with praegonite with 2 setae. Male terminalia as in Figs 116, 123, 127 and 131 and female ovipositor as in Figs 136 and 137 (all in Pont, 1973a).

Material examined: MNHN: New Caledonia: Thio : 50 km E of Nouméa, 18.ii.1978, S. Shinonaga, 2 ♂, 1 ♀, Shinonaga det.

NSMT: New Caledonia: Col d’Amieu: 20 km SW of Canara , 20.ii.1978, 2 ♀, S. Shinonaga. Col de Pétchécara : 15 km W of Thio , 25.ii.1978, 2 ♂, 2 ♀, S. Shinonaga, Shinonaga det. Thio : 50 km E of Nouméa , 18.ii.1978, 5 ♀, S. Shinonaga ; 1 ♀, Kurahashi ; 2 ♂, H. Shima ; 19.ii.1978, 1 ♂, 1 ♀, H. Kurahashi ; 19.ii.1978, 3 ♂, 2 ♀, H. Shima ; 21–22.ii.1978, 1 ♀, H. Kurahashi .

BMNH: New Caledonia: Burail : 25.v.1928, 1 ♀, T.D.A. Cockerell. Puebi: coast to 1500 feet, x.1949, 1 ♀, L.E. Cheesman. Tontouta: 4.vi.1925, 1 ♂, 1 ♀, P.A. Buxton .

BPBM: New Caledonia: Canala : 11.xi.1958, 1 ♀ , C.R. Joyce. Col d’Amieu: 650 m, 21.iii.1968, 2 ♂, 1 ♀, J.L. Gressitt & T.C. Maa. Col de la Pirogue : 23.i.1962, 1 ♀ , C.R. Joyce. Col de Tongoue : vi.1950, 1 ♀ , N.L.H. Krauss. Houailou : 23.ix.1925, 2 ♀ , W.H. Ford. Crouen: 250 m, ii.1973, 2 ♀; 150–250 m, ii.1973, N.L.H. Krauss ; 20–22.iii.1968, 2 ♀ , J.L. Gressitt & T.C. Maa. Hienghène : 0–160 m, i.1971, 1 ♂, 1 ♀ , N.L.H. Krauss. La Foa : near beach, 19.xi.1958, 4 ♀ ; 28.xi.1958, 1 ♀ , C.R. Joyce. La Mokoue to Dothio: 150–500 m, 20– 22.iii.1968, 2 ♀, T.C. Maa. Monts Koghis: 500 m, 23–27.viii.1967, 1 ♀, M. Sedlacek col.; 380 m, 18.viii.1968, 2 ♀, 300–600 m, 19.iii.1963, 1 ♀, J.L. Gressitt & T.C. Maa , light trap; 400–600 m, i.1969, 1 ♀ , N.L.H. Krauss; Road to Monts Koghis , 100–400 m, ii.1980, 1 ♂ , N.L.H. Krauss. Mont Mou : 4.ii.1962, 1 ♀ , N.L.H. Krauss. Mont Panié : trail, 8–9.ii.1963, 1 ♀ , N.L.H. Krauss. Nassirah: 100 m, 20.iii.1968, 1 ♀, J.L. Gressitt & T.C. Maa. Nouméa: I.F.O., Anse Vata , 1.iv.1958, 5 ♀ , J. Rageau; Anse Vata : 15.xi.1958, 1 ♀ , C.R. Joyce ; 27.x.1958, 13 ♂ ; 1.xi.1958, 1 ♂ ; 9.xi.1958, 1 ♂, 15.xi.1958, 3 ♂, 1 ♀; 23.xi.1958, 3 ♂, 5 ♀, C.R. Joyce ; 12.iii.1963, 1 ♂ , N.L.H. Krauss. Ouaco: in mts above Ouaco , 20.x.1958, 3 ♀ , C.R. Joyce. Oua Tom : 20.ix.1940, 1 ♂, 1 ♀ , F.X. Williams. Paita : 13.xi.1958, 1 ♀ , C.R. Joyce. Plaine des Lacs : 5.xi.1958, 2 ♂ , bait traps; 6.xi.1958, 1 ♀, C.R. Joyce. Plateau de Dogny : 30.iii.1968, by stream, 1 ♀ . Poneribouen: 0–50 m, 28.i.1969, 1 ♂, N.L.H. Krauss. Pouébo: 10 km south of Pouébo , 400 m, 24.i.1964, 1 ♀ , R. Straatman. Thio : 11.xi.1958, 7 ♀ , C.R. Joyce. Sarraméa : 12.ii.1963, 1 ♀ , C.M.Yoshimoto & N.L.H. Krauss, 12.ii.1962, 2 ♀, N.L.H. Krauss. Pondimié : 26.xi.1958, 1 ♀ , C.R. Joyce. ; ii.1962, 1 ♀ , N.L.H. Krauss. Up Boulari R [ Road ]: 17.xi.1958, 1 ♀ , C.R. Joyce. Yahoue: 100–200 m, xii.1983, 1 ♂, 2 ♀, N.L.H. Krauss. Yiambi: NE, 1–50 m, 15.x.1967, 1 ♂, 5 ♀; 50–500 m, 14.x.1967, 1 ♀ , newly cleared forest, J. & M. Sedlacek. Loyalty Islands: Lifou: ii.1962, 1 ♂, 1 ♀ ; 30–31.i.1962, 4 ♂ , N.L.H. Krauss. Mare: La Roche, iii.1959, 1 ♀ , N.L.H. Krauss. Ouvea: Fayaoue , ii.1963, 2 ♂ ; xiii.1968, 3 ♀; i.1969, 4 ♂, 4 ♀, N.L.H. Krauss.

Comments. Recorded from Plum Farm and Bourail by Curran (1929) and from several localities by Shinonaga et al. (1991). Redescription, comments on types, synonymies, details on geographic records and biology in Pont (1973a, as Ophyra chacogaster ).

Distribution. Australia (NSW, NT, Qld), Belau, Bonin Is, French Polynesia (Marquesas, Society Is), Guam, Hawai‘ian Is, Indonesia (Western New Guinea, Maluku), Marshall Is, Micronesia, New Caledonia ( New Caledonia, Loyalty Is), Northern Marianas, PNG (Bismarck Arch., PNG), Rennell I., Solomon Is, Samoa, Vanuatu, Volcano Is; Neotropical, Afrotropical and Oriental Regions.