Citrogramma variscutatum, (CURRAN, 1928)

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 : 166-167

CITROGRAMMA VARISCUTATUM ( CURRAN, 1928)

Syrphus variscutatus Curran, 1928: 210 . Lectotype. ♂, BMNH, designated by Wyatt (1991). Type locality: Malaysia: Mount Tahan. Curran, 1928: 198, 210, 1931a: 313, 318, 1931b: 352.

Citrogramma variscutatum of Vockeroth, 1969: 95; Knutson et al., 1975: 311.

Citrogramma variscutatus of Wyatt, 1991: 155, 158, 165.

Geographical distribution: Malay Peninsula (Pahang), Sumatra, Java.

Diagnosis: Species with face yellow ( Fig. 96 ), posterior anepimeron partly black, scutellum yellow with a sharply black macula ( Figs 93 , 100 ), pro- and mesofemur black basally, and notopleuron yellow and black pilose. Citrogramma variscutatum is morphologically close to C. wyatti , C. fascipleurum , C. difficile , and C. gedehanum , but all of them have pro- and mesofemur entirely yellow and notopleuron only yellow pilose.

Remarks: Some specimens have anterior anepisternum partly black, whereas others have it entirely yellow.

Lectotype male deposited in The Natural History Museum, formerly British Museum (Natural History) (London, UK) and labelled: ‘MALAY PENIN:/Pahang, F.M.S./ Gunong Tahan / 6500–7100’/Dec: 14 th 192 1 / H.M. Pendlebury’ ‘EX COLL:/F.M.S./MUSEUM’ [back of label] ‘Pres. by/Fed. Malay States/Museum./ B.M. 1934–74’ ‘ Holo TYPE/ Syrphus / variscutatus /No. Curran ’ [red, handwritten by Curran] ‘ LECTOTYPE ♂ of / Syrphus / variscutatum Curran /det. N.P. Wyatt 198 9 ’.

Type locality: Malaysia: Pahang State, Taman Negara National Park, Mount Tahan , 1981–2164 m, 4°37′N, 102°14′E .

Material examined: Type material. Lectotype, as above. Paralectotypes. MALAYSIA: Pahang, Cameron Highlands, Gunong Berumbang, 6050 ft, 17.vi.1923, H.M. Pendlebury ‘ C.H. Curran Collection Aco. 31144’ [1♂, AMNH; 2♂, BMNH]; Pahang, Mt Tahan , 6500– 7100 ft, 15.xii.1921, H.M. Pendlebury [1♂, BMNH] .

Nontype material. MALAYSIA: Pahang, Cameron Highlands, Gunong Berumbang, 6040 ft, 26.vii.1938, H.M. Pendlebury [1♂, BMNH];..., 23.vii.1938,... [1♂, BMNH]; Pahang, Cameron Highlands, Gunong Batu Brinchang, 6665 ft, 14.v.1939, H.M. Pendlebury [1♂, BMNH]; Pahang, Gunong Benom, 6000 ft, 4.viii.1925, J.H.N. Evans [3♂, BMNH];..., 2.vii.1925,... [2♂, BMNH]; Pahang, Cameron Highlands, Mt Brinchang, 5000– 6600 ft, 26.iv.1941, J.A. Reid [2♂, BMNH];..., 6600 ft, 14.ii.1964, H.T. Pagden [1♂, BMNH];..., 1–9.i.1959, L.W. Quate [9♂, BPBM];..., 2–7.i.1959, L.W. Quate [10♂, BPBM]; Cameron Highlands, Mt Batu Brinchang, 2200 m, 10.iii.1963, M.A. Lieftinck [1♂, RMNH];..., 6660 ft, 21.ix.1938, H.M. Pendlebury [1♂, BMNH]; Cameron Highlands, swept tree, xi.1961, D.H. Murphy ‘A422–18’ [1♂, USNM]; INDO- NESIA: Sumatra, Lampung, Mt Tanggamoes (= Tanggamus), 2100 m, 19–31.iii.1940, M.A. Lieftinck [1♂, RMNH]; West Java, Tjibodas, Mt Gede, 4500 ft, 1909, Bryant & Palmer [2♂, USNM];..., Pangrango, 3000 m., 24.xii.1919, *Dr C.* [1♀, ZMAN];..., Mt Gede, 1500–2000 m, iv.1911 ‘Gedeh. JAVA/ Koningsberger/ 4 .1911. 1500–2000 m ’ ‘ ♀ v. gedehanus /? ? /det. de Meijere’ (handwritten except third line, de Meijere) ‘ Syrphus /gedehanus/ de Meijere 1914 /ZMAN type DIPT.0989.3’ [1♀, ZMAN].

Figures

Figures 88–99. 88–89, Citrogramma citrinum: 88, lateral view of male head and pleuron; 89, dorsal view of female abdomen. 90, Citrogramma citrinoides, dorsal view of male abdomen. 91–92, Citrogramma henryi: 91, dorsal view of male abdomen; 92, dorsal view of female abdomen. 93, Citrogramma variscutatum, dorsal view of male abdomen. 94, C. citrinoides, frontal view of male head. 95, Citrogramma currani, dorsal view of male head. 96, C. variscutatum, lateral view of male head. 97, C. currani, anterodorsal view of female head. 98, C. henryi, lateral view of male head. 99, C. currani, lateral view of female head.

Figures 100–111. 100, Citrogramma variscutatum, dorsal view of female abdomen. 101–102, Citrogramma currani: 101, dorsal view of male abdomen; 102, dorsal view of female abdomen. 103–106, Citrogramma wyatti: 103, dorsal view of male abdomen; 104, dorsal view of female abdomen; 105, anterodorsal view of male head; 106, dorsal view of female head. 107, Citrogramma fascipleurum, anterodorsal view of female head. 108–109, Citrogramma difficile: 108, frontal view of male head; 109, dorsal view of female head. 110, C. fascipleurum, lateral view of female pleuron and head. 111, C. difficile, dorsal view of head, scutum and scutellum.