Citrogramma circumdatum

Mengual, Ximo, 2012, The flower fly genus Citrogramma Vockeroth (Diptera: Syrphidae): illustrated revision with descriptions of new species, Zoological Journal of the Linnean Society 164 (1), pp. 99-172 : 133

CITROGRAMMA CIRCUMDATUM ( DE MEIJERE, 1908)

Syrphus circumdatus de Meijere, 1908: 306 . Lectotype: ♂, ZMAN, here designated. Type locality: Papua New Guinea: Moroka. de Meijere, 1908: 306, fig. 35, 1914: 157; Hervé-Bazin, 1923a: 25; Curran, 1931a: 312, 1931b: 350 (in part).

Olbiosyrphus circumdatus of Hervé-Bazin, 1926: 67; Frey, 1946: 163.

Citrogramma circumdatum of Knutson et al., 1975: 311 (in part); Thompson & Vockeroth, 1989: 442.

Citrogramma circumdata of Wyatt, 1991: 155, 157, 162, fig. 7.

Geographical distribution: New Guinea. Curran (1931b) identified a female from Mt Kinabalu as Syrphus circumdatus that Knutson et al. (1975) also cited. This female is here identified as C. hervebazini ( Curran, 1928) .

Differential diagnosis: Species with a distinct scutum pattern: lateral yellow vitta narrowed ventrally on notopleuron and supra-alar area with a lateral black macula ( Figs 35, 36 ). Citrogramma circumdatum has a medial black facial vitta, scutellum with a medial black macula, pro- and mesofemur mainly yellow and katepisternum with a dorsal large yellow macula.

Remarks: de Meijere (1908) based his new species on a series of three males and two females from Moroka (New Guinea) collected by Loria, but he did not designate a holotype in his work. de Jong (2000) explained that the syntypes from MSNG (= MCSN) were lost in HNHM in 1956, but he did not mention how many specimens were in MSNG. Recently, I examined a specimen received from Ghorpadé, a borrowed male labelled: ‘N. GUINEA S.E./Moroka, 1300 m./LORIA VII–XI 93’ ‘Museo Civ. Genova’ ‘MCSNG’ ‘ Citrogramma / pendleburyi / (CURRAN) /K.D. Ghorpade det. 19 83 ’ [second and third lines handwritten]. The specimen is in very bad condition: without wings, with only two legs and the head and the abdomen glued on a label. This male specimen is labelled as a paralectotype and deposited in MSNG.

Amongst the examined syntypes (a male and a female) deposited at the Zoölogisch Museum Amsterdam (Universiteit van Amsterdam, the Netherlands), there is a pinned male labelled ‘N. Guinea S.E., Moroka 1300 m., Loria, vii–xi.93’ ‘Museo Civ. Genova’ ‘ Syrphus circumdatus det. de Meijere’ (italics = handwritten text) ‘ Syrphus circumdatus de Meijere, 1908 ZMAN type DIPT.0970.1’. This specimen is here designated lectotype to fix and ensure the universal and consistent interpretation of the name. The other syntype (‘ Syrphus circumdatus de Meijere, 1908 ZMAN type DIPT.0970.2’) has been labelled as a paralectotype.

Lectotype male deposited in the Zoölogisch Museum Amsterdam (Universiteit van Amsterdam, the Netherlands) and labelled: ‘N. Guinea S.E., Moroka 1300 m., Loria, vii–xi.93’ ‘Museo Civ. Genova’ ‘ Syrphus circumdatus det. de Meijere’ (italics = handwritten text) ‘ Syrphus circumdatus de Meijere, 1908 ZMAN type DIPT.0970.1’ ‘ LECTOTYPE / Citrogramma / circumdatum /det. X. Mengual 20 09 ’ [red, second and third lines handwritten].

Type locality: Papua New Guinea: Central Province, Moroka (09°25′S, 147°41′,E), circa 1300 m above sea level. Loria’s collecting locality ‘Moroka’ was located by Thomas (1897: 607) amongst the mountains behind the Astrolabe Range, near Mt Wori–Wori. Tate (1940: 2) placed it at the ‘headwaters of the Musgrave River’. Later, Laurie & Hill (1954: 151) gave the coordinates of this locality as ‘ 09°24′S, 147°32′E’. Loria’s specimen labels quote the elevation of Moroka as ‘1300 m’. Tags on the Genova specimens identify this locality with the ‘Bartholomew Range’. ‘Mt Wori- Wori’ is today referenced as ‘Vori Vori Bluff’ (A. Allison, unpubl. data) [extracted from Helgen et al., 2008]. de Jong (2000) gave slightly different coordinates, 09°25′S, 147°35′E.

Material examined: Type material. Lectotype, as above. Paralectotypes. PAPUA NEW GUINEA: New Guinea S.E., Moroka 1300 m, Loria, vii–xi.1893 [1♀, ZMAN; 1♂, MSNG] .

Nontype material. PAPUA NEW GUINEA: Wau, Nakata Ridge, 4700 ft, 9.vi.1968, J.W. Boyes (Boyes Cytolog. Coll. #790, 793, 796, 798, 799, 800, 802) [5♂ 3♀, CNC] ;..., 11.vi.1968, J.W. Boyes (Boyes Cytolog. Coll. #808) [6♂ 5♀, CNC]; Morobe Prov., near Wau, Mt Kaindi , 1200–1440 m, 24.viii.1983, S.E. & P.M. Miller [1♂, USNM]; (NE) Morobe Province, Wau , 1700 m, 18.v.1969, Malaise trap, J. Sedlacek [1♂, BPBM] ;..., 1250 m, 3.viii.1964,... [1♂, BPBM] ;..., 1200 m, 10.v.1963,... [3♂ 1♀, BPBM] ;..., 1–10.v.1963,... [2♂ 3♀, BPBM] ;..., 5.x.1962,... [2♀, BPBM] ;..., 17.ix.1961, J. Sedlacek [1♂, BPBM] ;..., 15.viii.1961, Malaise trap, J. & M. Sedlacek [2♀, BPBM] ;..., 17.iii.1965,... [1♀, BPBM] ;..., 1750 m, 23.viii.1965,... [1♂ 1♀, BPBM] ;..., 1250 m, 12.viii.1965,... [1♀, BPBM] ;..., 25.viii.1965,... [1♀, BPBM] ;..., 1300 m, 25.vi.1961, J. Sedlacek [1♀, BPBM] ;..., 1150 m, 17.ix.1962, J. Sedlacek [1♀, BPBM] ;..., 1500 m, 24.ix.1961, J. Sedlacek [1♂ 1♀, BPBM] ;..., 1700 m, 16–19.v.1962, J. Sedlacek [1♀, BPBM] ;..., 1100–1300 m. i.1966, J. Sedlacek [1♀, BPBM] ;..., 1400 m, 20.xii.1961, J. & J.H. Sedlacek [2♀, BPBM] ;..., 1150 m, viii.1971, M. Sedlacek [1♀, BPBM];..., Edie Creek , 200 m, 5–11.x.1961, Malaise trap, J. Sedlacek [1♂, BPBM];..., Kunai Ck ., 1250 m, 26.viii.1963, Malaise trap, J. Sedlacek [1♂, BPBM]; (NE) 6 km W of Wau, Nami Creek , 1700 m, 10.vi.1962, J. Sedlacek [1♂ 7♀, BPBM]; (NE) Nami Creek , 10.vi.1962, J. & M. Sedlacek [2♂ 2♀, BPBM]; (NE) Mt Kaindi , 2350 m, 19.vii.1971, M. Sedlacek [1♀, BPBM]; (NE) Mt Kaindi , 1300–1400 m, vi.1968, N.L.H. Krauss [1♀, BPBM]; NE. Feramin , 150 – 120 m, 1–6.vi.1959, W.W. Brandt [2♂, BPBM]; Bulolo, Manki Logging Area , 7.vii.1983, H. Roberts [1♂, BMNH] ;..., 14.vi.1983,... [1♂ 1♀, BMNH]; Bulolo , F.H. Taylor [1♀, ANIC] .

Figures

Figures 27–38. 27–28, Citrogramma robertsi: 27, dorsal view of male head; 28, dorsal view of female head. 29, Citrogramma hervebazini, dorsal view of male abdomen. 30, Citrogramma vockerothi, dorsal view of male abdomen. 31, Citrogramma solomonense, lateral view of male pleuron. 32, C. vockerothi, lateral view of male pleuron and head. 33–37, Citrogramma circumdatum: 33, dorsal view of male abdomen; 34, dorsal view of female abdomen; 35, lateral view of male pleuron; 36, dorsolateral view of female scutum and pleuron; 37, dorsal view of female head; 38, C. solomonense, lateral view of male head.