information on distribution and associated plants. A key to species is provided.Morphological differences to separate the Australian species of Amblypelta are discussed together with
The genus Notuchus is redescribed. A key to all species of Notuchus and illustrated descriptions of N. rotundifacies sp. n., N. kurandae sp. n. and N.palmerstonensis sp. n. are given. These are the first species of the genus recorded from the Australian mainland.
Australia has 2 genera and 4 species of Tropidocephalini: Pseudembolophoru mucleoyi Muir, Tropidocephulu dryas Kirkaldy, T. eximia (Kirkaldy) and T. neoomboinensis Muir; all are redescribed. T. homodryas Kirkaldy is synonymised with T. dryas. A key to these genera and species is given.
The State of Queensland includes islands within Torres Strait. However, Quarantine legislation separates these islands from mainland Australia, and divides them into two Quarantine zones. Details of the Torres Strait and far north Queensland distribution and damage levels of Eumetopina flavipes Muir (sugarcane leafhopper) and Chilo terrenellus Pagenstecher (sugarcane stem borer) are published here for the first time. The delphacid is a known vector of the sugarcane disease, Ramu stunt, which occurs in northern Papua New Guinea (PNG) and possibly other locations. Eumetopina flavipes has been known to occur on islands within Torres Strait and the communities near the tip of Cape York Peninsula since 1983. The disease is not known to be present in this population of the bugs. The sugarcane stem borer, C. terrenellus, has been detected on a number of occasions in sugarcane on two of the three Torres Strait islands closest to PNG (Saibai and Dauan). Its 'appearance' at these two sites is intermittent and damage levels are never as high as in the nearby communities in the Western Province of PNG. The majority of sugarcane plantings on Torres Strait islands are yellow and purple varieties of chewing cane (Saccharum officinarum) which is the host for all records reported here. Recent detection of Chilo crypsimetalla (Turner) on several islands in Torres Strait is reported, although this is not thought to be a pest of sugarcane.
Examination of Delphacini holdings in Australian insect collections and comparison with material from overseas collections has revealed several species not previously recorded from Australia, Timor Leste and/or Papua New Guinea. Newly recorded species from Australia are Anchodelphax olenus Fennah, Cemus sauteri (Muir), Falcotoya aurinia Fennah, Hagamiodes fuscicaudata (Muir), Horcoma colorata lacteipennis (Muir), Latistria placitus (van Duzee), Nemetor sabinus Fennah, Nilaparvata bakeri (Muir), Nilaparvata myersi (Muir), Numata corporaali (Muir), Nycheuma coctum (Yang), Perkinsiella bakeri (Muir), Rhombotoya pseudonigripennis (Muir), Tagosodes pusanus (Distant), Toya bridwelli (Muir). Newly recorded species from Timor Leste are Falcotoya aurinia, Horcoma colorata lacteipennis, Latistria placitus, Nycheuma coctum and Tagosodes pusanus. Newly recorded species from Papua New Guinea are Hagamiodes fuscicaudata and Laodelphax striatellus (Fallén). An updated checklist of Australian Delphacini is provided. [Correction added on 19 December 2013, after first online publication: 'Laodelphax striatellus' has been removed from the list of newly recorded species.]
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