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 62VG4 226173 Pilinascia Pilinascia [505,786,1517,1543] Insecta Syrphidae Helophilus Animalia Diptera 13 14 Arthropoda genus    1. Scutellum with two medial tuberculate swellings .............................................................. cingulatusgroup  - Scutellum normal, without such tuberculate swellings...............................................................................2   2. Metafemur with a large distinct basoventral process; wing with a stigmatic crossvein .. seelandicusgroup  - Metafemur simple, without a process; wing without a stigmatic crossvein................................................3   3. Eye pilose ............................................................................................................................ campbelligroup  - Eye bare.......................................................................................................................................................4   4. Lateral ocelli closer to each other than to eyes; oral margin strongly produced anteriorly or ventrally; smaller, more slender and elongate flies .............................................................................. montanusgroup  - Lateral ocelli closer to eyes than to each other; oral margin not strongly produced; larger and more robust flies ..................................................................................................................................... antipodusgroup