Journal
AUSTRAL ENTOMOLOGY
Volume 54, Issue 3, Pages 332-338Publisher
WILEY
DOI: 10.1111/aen.12131
Keywords
biosecurity; biting midge; bluetongue virus
Categories
Funding
- NSW BioFirst Initiative
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Light trap surveillance across northern Australia and Papua New Guinea (PNG) has detected the presence of several Oriental species of Culicoides not previously reported from those countries and which appear to have arrived in recent times. Detections of C.nudipalpisDelfinado in Western Australia, C.flavipunctatusKitaoka and C.palpiferDas Gupta and Ghosh in the Northern Territory and of C.flavipunctatus, C.fulvusSen and Das Gupta and C.orientalisMacfie in Queensland (Qld) provide evidence of multiple pathways for incursions of biting midges into northern Australia. Of these, only C.fulvus appears to have established. Additionally, three species, C.fulvus, C.wadai Kitaoka and C.brevipalpisDelfinado, are newly reported from PNG and all appear to be well established. The arrival in PNG of C.fulvus and C.brevipalpis, both not previously reported from Qld, suggests that pathways exist for the entry of Oriental insects into New Guinea directly from Asia, rather than via Australia. Molecular analyses using DNA barcodes (partial mitochondrial cytochrome oxidase subunit one sequences) confirmed morphological identification of specimens and additionally provided strong evidence relating to the source of these incursions. At least two of these species are vectors of important livestock viruses and are likely to impact on the epidemiology of these viruses as they continue to disperse.
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