Citrogramma undefined-1

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 : 169

CITROGRAMMA SP. 1

Geographical distribution: New Ireland Island ( Papua New Guinea).

Diagnosis: Very distinct female, with strongly infuscated wings, lighter posteriorly ( Fig. 55 ). It has the abdomen more flat than other species, with broad abdominal yellow fasciae, parallel to tergum margins, and slightly broadened on lateral margins ( Fig. 54 ).

Remarks: Very distinct species with anepisternum and anepimeron yellow and wing strongly infuscated. This is the only specimen whose characters do not apply to either of the two alternatives (major groups) in couplet 22 (one group with yellow abdominal fasciae reaching lateral margins and wings pale or hyaline, and another with yellow abdominal fasciae not reaching lateral margins and wings being infuscated), and the reason why the key has couplet 23.

Material examined: PAPUA NEW GUINEA: New Ireland Province, Schleinitz Mts., Lelet Plateau , x.1959, W.W. Brandt [1♀, BPBM] .

Figures

Figures 51–62. 51–52, Citrogramma schlingeri: 51, dorsal view of male abdomen; 52, dorsal view of female abdomen. 53, Citrogramma flavigenum, dorsal view of male abdomen. 54–55, Citrogramma sp. 1: 54, dorsal view of female abdomen; 55, wing. 56, C. flavigenum, dorsal view of male head. 57–60, Citrogramma luteopleurum: 57, dorsal view of female head; 58, dorsal view of male head and lateral view of scutum; 59, dorsal view of male abdomen; 60, dorsal view of female abdomen. 61–62, Citrogramma pintada: 61, dorsal view of male abdomen; 62, dorsal view of female abdomen.