A conspectus of New Zealand flower flies (Diptera: Syrphidae) with the description of a new genus and species Author Thompson, Christian text Zootaxa 2008 1716 1 20 journal article 10.5281/zenodo.181009 c70896b6-ffba-4d44-95b9-62d9a262c2ab 1175-5326 181009 Key to the species groups of Helophilus ( Pilinascia ) 1. Scutellum with two medial tuberculate swellings .............................................................. cingulatus group - Scutellum normal, without such tuberculate swellings...............................................................................2 2. Metafemur with a large distinct basoventral process; wing with a stigmatic crossvein .. seelandicus group - Metafemur simple, without a process; wing without a stigmatic crossvein................................................3 3. Eye pilose ............................................................................................................................ campbelli group - 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 .............................................................................. montanus group - Lateral ocelli closer to eyes than to each other; oral margin not strongly produced; larger and more robust flies ..................................................................................................................................... antipodus group