Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

FNZ 23 - Dolichopodidae (Insecta: Diptera) - Abstract

Bickel, DJ 1992. Sciapodinae, Medeterinae (Insecta: Diptera) with a generic review of the Dolichopodidae. Fauna of New Zealand 23, 74 pages.
( ISSN 0111-5383 (print), ; no. 23. ISBN 0-477-02627-3 (print), ). Published 13 Jan 1992


The New Zealand Dolichopodidae (Diptera) are reviewed, with a general discussion of morphology and natural history. An annotated key is provided to the described genera. The New Zealand fauna comprises both endemic and widespread continental genera. However, in composition and dominance it is distinctly southern temperate, and shows similarities to the faunas of southeastern Australia / Tasmania and southern South America. Owing to New Zealand's southern geographical position, the fauna has no tropical Oriental-Papuan elements. The subfamilies Sciapodinae and Medeterinae are treated in detail. The Sciapodinae are represented by twenty-nine species in three genera. Parentia is a temperate trans-Tasman genus known only from New Zealand, Australia, and New Caledonia. There are twenty-seven New Zealand species, fifteen of which are newly described. Four nominal species are reduced to synonymy. A phylogenetic analysis combining the New Zealand and Australian faunas is presented. Sister-taxon relationships between New Zealand and Australian groups suggest a fauna held in common before the opening of the Tasman Sea more than 80 m.y. BP. The new genus Naupaga, with its single species N. hexachaeta (Parent), is of uncertain position within the Sciapodinae. The eastern Australian Austrosciapus proximus (Parent) is known only from disturbed habitats in Auckland, and is almost certainly an accidental introduction. The Medeterinae are represented solely by Thrypticus arahakiensis, a new species. The new genus Apterachalcus is established to accommodate the apterous A. borboroides (Oldroyd), formerly placed in Acropsilus.

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