Citrogramma sedlacekorum, VOCKEROTH, 1969

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 : 163

CITROGRAMMA SEDLACEKORUM VOCKEROTH, 1969

Citrogramma sedlacekorum Vockeroth, 1969: 99 . Holotype: ♂, BPBM, by original designation. Type locality: Papua New Guinea: Wau. Vockeroth, 1969: 99, fig. 94; Thompson & Vockeroth, 1989: 442; Wyatt, 1991: 155, 156.

Geographical distribution: New Guinea.

Diagnosis: Species similar to C. bicornutum and C. asombrosum , with black facial vitta and costal cell microtrichose. Citrogramma sedlacekorum differs from the others two species by male frontal triangle with a medial triangular dark macula, lunule black ( Figs 12, 13 ), scutellum yellow with a medial dark macula reaching anterior margin ( Figs 11, 14 ) and anal lobe bare basally. Citrogramma sedlacekorum also has enlarged male genitalia, very singular, with sternum 8 presenting three subcylindrical processes ( Fig. 154 ).

Holotype male deposited in the Bernice P. Bishop Museum (Honolulu, Hawaii, USA) and labelled: ‘NEW GUINEA: (NE)/Wau, Morobe Distr./ 1400 m, 20.XII.1961 ’ ‘J. &J.H. Sedlacek/Collector/BISHOP’ ‘ HOLOTYPE / Citrogramma / sedlacekorum / Vockeroth ’ [red, handwritten except first line].

Type locality: Papua New Guinea: Morobe Province, Bulolo District, Wau , 70°20′S, 146°42′E .

Material examined: Type material. Holotype, as above. Paratype. PAPUA NEW GUINEA: (NE) Morobe, Wau , 1200 m, 5.x.1962, J. & J.H. Sedlacek [1♀, BPBM] .

Nontype material. PAPUA NEW GUINEA: Wau, 1200 m, 20.iii.1968, M. Sedlacek [1♀, BPBM] .

Figures

Figures 3–14. 3, Citrogramma amarilla, frontal view of female head. 4, Citrogramma flavigenum, frontal view of male head. 5–7, Citrogramma bicornutum: 5, frontal view of male head; 6, dorsal view of male head; 7, anterodorsal view of female head. 8–10, Citrogramma pennardsi: 8, dorsal view of male abdomen; 9, dorsal view of male head; 10, ventral view of male genitalia (detail). 11–14, Citrogramma sedlacekorum: 11, dorsal view of female abdomen; 12, dorsal view of male head; 13, dorsal view of female head; 14, dorsal view of male abdomen.

Figures 154–157. Male genitalia. 154, Citrogramma sedlacekorum (from Vockeroth, 1969): a, left lateral view (sternum 8 included); b, superior lobe, lateral, outline only; c, sternum 9, superior lobes and aedeagal base, ventral view; d, right surstylus, lateral view. 155, Citrogramma pintada, left lateral view. 156, Citrogramma pinyton, left lateral view. 157, Citrogramma notiale: a, left lateral view; b, superior lobe, lateral, outline only; c, sternum 9, superior lobes and aedeagal base, ventral view; d, right surstylus, dorsal view.