Physocephala vittata ( Fabricius, 1794 )

Stuke, Jens-Hermann, 2016, Taxonomic notes on Western Palaearctic Conopidae (Diptera), Zootaxa 4178 (4), pp. 521-534 : 529-530

Key to colour morphs of Physocephala vittata ( Fabricius, 1794)

1 Pleura with distinct areas of dense dusting................................................................ 2

- Pleura without distinct areas of dense dusting.............................................................. 4

2 Dusting on pleura restricted to a spot dorsally on the katepisternum, anepisternum without dense dusting................................................................................ vittata , colour morph maculigera Kröber, 1915

- Dusting on the pleura forming a band that reaches more or less up the anepisternum to close to the notopleuron........... 3

3 Darker specimens: male: with at least epandrium black, and usually the apical segments of abdomen mainly black coloured; female: tergite 3 with a black band............................................ colour morph truncata Loew, 1847

- Lighter specimens: male: epandrium orange-brown like the rest of the abdomen; female: tergite 3 with a pair of black markings......................................................... vittata , colour morph pseudomaculigera Kröber, 1915

4 Tergite 4 shining, without a distinctly dusted hind margin................... vittata , colour morph detecta Becker, 1913

- Tergite 4 with a distinct broad dusted hind margin........................................................... 5

5 Dark specimens with black postcoxal bridge and thorax more or less completely black with the exception of the postpronotum.................................................................. vittata , colour morph fraterna ( Loew, 1847)

- Lighter specimens with postcoxal bridge reddish orange and thorax paler with at most the mesoscutum black, and the pleura mostly reddish orange................................................................................. 6

6 Abdomen with distinct black markings; black colouration of mesoscutum not divided to three large black spots........................................................................................ vittata , typical colour morph

- Abdomen more or less completely orange brown, at most with small pairs of black spots on tergites but not with black bands; black colouration of mesoscutum reduced and divided to three large black spots................................................................................................... vittata , colour morph abdominalis Kröber, 1915