Macquart 1850 : 447 nigra Macquart, 1850 griseus Walker, 1835 A conspectus of New Zealand flower flies (Diptera: Syrphidae) with the description of a new genus and species Thompson, Christian Zootaxa 2008 1716 1 20 63H7S 115305 Macquart Macquart [259,625,1866,1892] Insecta Syrphidae Orthoprosopa Animalia Diptera 15 16 Arthropoda genus     ORTHOPROSOPA  Macquart 1850: 447. Type-species:  nigra Macquart, 1850, [=  griseus Walker, 1835], original designation.