IV Bluetongue Conference by David Gopurenko
In this study, species boundaries were examined for 15 described and 2 undescribed species within... more In this study, species boundaries were examined for 15 described and 2 undescribed species within the economically important Culicoides subg. Avaritia Fox from Australasia and Eastern Asia. We used an integrative taxonomic approach incorporating DNA barcoding, nuclear gene sequencing, and retrospective morphological analyses. Some arbovirus vector species such as Culicoides fulvus Sen and Das Gupta and Culicoides wadai Kitaoka were genetically and morphologically uniform across sampled distributions, but others including Culicoides actoni Smith and Culicoides brevipalpis Delfinado contained 2 or more genetically independent populations of 'cryptic species' that in some cases were sympatric. Some of these 'cryptic species' exhibited consistent morphological differences, while differences are yet to be found for others species. Additionally, an undescribed species, C. Avaritia sp. No. 3, was found to be synonymous with C. fulvus. These results refine our understanding of the distribution of individual species of C. subg. Avaritia and demonstrate that species descriptions and distribution records need revision for part of the Culicoides fauna. Furthermore, because vector competence studies for most of these species are based entirely on Australian populations, the competence of the putative cryptic species identified elsewhere will require independent assessment. Finally, integrative taxonomic assessment requires genetic and morphological assessment of material from the type localities in order to clarify the status and distribution of species, especially for clades containing cryptic species. International collaboration is needed to facilitate this research.
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Papers by David Gopurenko
Scientific Reports, Nov 25, 2016
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Austral entomology, Mar 1, 2022
Larval habitats of the pest biting midge Culicoides ornatus were identified and characterised in ... more Larval habitats of the pest biting midge Culicoides ornatus were identified and characterised in a macrotidal mangrove creek system in Darwin Harbour in the wet‐dry tropics of northern Australia. Sampling was undertaken during the mid to late dry season using submersible emergence traps to indicate larval activity. Substantial emergence was found in two well separated and distinctly different habitats: open creekbanks covered in Avicennia marina (Grey Mangrove) pneumatophores in the upper reaches of small tidal creeks and broad relatively flat areas dominated by Sonneratia alba (Mangrove Apple) at the mouth of the creek system. Intervening areas along creeklines were lined by Camptostemon schultzii (Kapok Mangrove) and did not support emergence activity. Adults emerging from each habitat were conspecific, based on comparison of mitochondrial COI gene sequences and a range of morphological characters. Nine different haplotypes were identified from 26 adults, with four haplotypes common to both habitats. Neighbour‐joining analysis resolved all the haplotypes as a single highly supported clade with an average sequence difference of 1.6%. Features common to the two habitats included occurrence in sheltered mangrove‐lined estuaries; occurrence in soft, fine, silt mud; presence of mangrove pneumatophores; and an open vegetation structure providing partial shade. Dense vegetation appeared to be a limiting factor. The tidal creek habitat was similar to C. ornatus habitats previously described from the east coast of Australia, but neither the Sonneratia zone nor other habitats at such a low tidal elevation have been previously associated with C. ornatus. This is the first detailed account of the larval biology of this important mangrove breeding pest species. The identification of likely C. ornatus breeding sites in Darwin Harbour and other similar ria coastlines of northern Australia should be possible from aerial photographs using the habitat descriptions presented in this paper.
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Scientific Reports, Feb 17, 2017
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Plant Pathology, Oct 3, 2018
S. J. Hall, I. B. Dry, D. Gopurenko and M. A. Whitelaw-Weckert* National Wine and Grape Industry ... more S. J. Hall, I. B. Dry, D. Gopurenko and M. A. Whitelaw-Weckert* National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, New South Wales, 2650; New South Wales Department of Primary Industries, Wagga Wagga, New South Wales, 2650; CSIRO Agriculture and Food, Hartley Grove, Urrbrae, South Australia, 5064; and Graham Centre for Agricultural Innovation, Locked bag 588, Wagga Wagga, New South Wales, 2678, Australia
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Journal of Herpetology, Sep 1, 2009
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Korean Journal of Parasitology, Aug 25, 2015
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Biology Letters, Jul 1, 2008
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Molecular Biology Reports, Aug 4, 2023
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Zootaxa, Jun 18, 2013
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Frontiers in Plant Science, Oct 26, 2018
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Journal of Mammalogy, Dec 16, 2010
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Frontiers in Plant Science, Apr 26, 2017
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Evolution, Jun 1, 2008
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Austral entomology, May 24, 2022
Serpentine leafminer Liriomyza huidobrensis is a highly polyphagous insect pest that threatens ve... more Serpentine leafminer Liriomyza huidobrensis is a highly polyphagous insect pest that threatens vegetable and ornamental horticultural production globally as a function of feeding and egg laying damage to plants. Although this species has been periodically intercepted at Australia's border, the pest had not been recorded as established on the mainland. A population of L. huidobrensis was identified in the Sydney Basin, New South Wales (NSW), Australia, in late 2020 affecting a variety of vegetable crops. Delimiting surveillance revealed L. huidobrensis to be widespread in the Sydney Basin and present in several regional locations, impacting vegetable, ornamental and weed hosts. This article documents the first report of L. huidobrensis in Australia and the ensuing biosecurity response that was triggered at its detection.
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Scientific Reports, Mar 16, 2017
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<i>Culicoides palawanensis</i> Delfinado <i>Culicoides palawanensis</i> D... more <i>Culicoides palawanensis</i> Delfinado <i>Culicoides palawanensis</i> Delfinado 1961: 648 <b>Type material examined.</b> Paratype, Philippine Islands, Palawan Prov, Culion Island, San Pedro, 26.Mar.1947, near sea level, H.Hoogrstaal, CNHM-10 (1 male, ANIC). <b>Non-type material examined. People's Republic of China, Hainan</b>: Dongzhaigang Mangrove Reserve nursery, 19.85°N; 110.40°E, 1m, Lt Tp, 14.Oct.2015, J-H Li &amp; D-C Cai (4 females, 2 males); Dongzhaigang Mangrove Reserve nursery, 19.85°N; 110.40°E, 1m, landing collection 16:15–17:15 hr, 14.Oct.2015, G. Bellis (1 female); Dongzhaigang Mangrove Reserve nursery, 19.85°N; 110.40°E, 1m, net 16:15–17:15hr, 14.Oct.2015, J-H Li &amp; D-C Cai (2 females). <b>Thailand:</b> Trang Province, Pak Maeng Beach, 7.5058°S, 99.3135°E, sweep net 18:15 pm, 16.Apr.2013, A.Thepparat (1 female, Ramkhamhaeng University Insect Collection, Bangkok, Thailand). <b>Diagnosis.</b> Females: The only species in the Ornatus group with the following suite of characters: hairy eyes, SCo on basal flagellar segments, spermathecae with sclerotised necks and lacking a sclerotised spermathecal ring. <b>Biology.</b> Unknown, but all collection data indicate an association with mangroves or sea shores. The specimen collected from humans suggests this species may feed on people. <b>Distribution.</b> This species is known from Indonesia, Malaysia, Philippines, Sabah, Sarawak, Thailand, and the People's Republic of China (new record). <b>Remarks.</b> This species aligns with the Pictipennis section of <i>C</i>. Subg. <i>Oecacta</i> in the keys of Yu <i>et al.</i> (2005) and to couplet 6 in the key to the Pictipennis section. It resembles both species in that couplet, <i>C. zhuhaiensis</i> Yu and Hao and <i>C. miharai</i> Konoshita, differing mainly in the spermathecae, which in <i>C. palawanensis</i> has necks and lacks a sclerotized spermathecal ring, while those of <i>C. zhuhaiensis</i> lack spermathecal necks and <i>C. miharai</i> has a long sclerotized ring. Additionally, the illustration of fe [...]
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<i>Culicoides nudipalpis</i> Delfinado (Figs 3, 8, 9, 14, 17, 20, 23, 27, 30, 33, 40,... more <i>Culicoides nudipalpis</i> Delfinado (Figs 3, 8, 9, 14, 17, 20, 23, 27, 30, 33, 40, 41, 42, 45) <i>Culicoides nudipalpis</i> Delfinado 1961: 655; Wirth &amp; Hubert 1989: 281 (description of male and female); Meiswinkel &amp; Baylis, 1998 (separation from <i>C. imicola</i>); Lien <i>et al.,</i> 1998: 35 (Taiwan record, description of male and female); Yu <i>et al.</i> 2005: 1018 (China record, description of male and female); Dyce <i>et al.</i>, 2007: 19 (female wing illustrated). <b>Type material examined. Philippines:</b> Tala, Rizal, 21.May. 1958, M. Delfinado (paratype, female, USNM) <b>Non-type material examined. Timor Leste:</b> Hera, 30.Mar. 2004, Lt Tp., E. Watkins, (2 females, NTQIC); Cape Tefara, lt. tp. 5.Aug. 1969, DG. Nicholls (5 females, 1 male, ANIC); Suai, Cafe Cooperativa Timor, 9 ° 23.046 'S; 125 ° 10.675 'E, Lt Tp, 13–14.May. 2010, B. Cookson (1 female, 2 males NTQIC); Ainaro, Surucraic, 15.Nov. 2001, E. Watkins (1 female, NTQIC), Bobonaro, Maliana, Rai Fun, 7 -May- 2002, E. Watkins (1 female, NTQIC); Oecusse, Samora, 24 -Feb- 2005, G. Bellis (1 female, NTQIC); Cova Lima, Suai, 9.31 °S, 125.26 °E, 5.May. 2002, G. Bellis (1 female, NTQIC); Oecusse, Pante Makassar, 7 -Dec- 2002, G. Bellis (1 female, NTQIC); Ermera, Letefoho Eraulo, 22.Jul. 2004, E. Watkins (1 female, NTQIC); Viqueque, 19.Jul. 2000, A. Moss (1 female, NTQIC); Dili, Cristo Rei, Hera, 19.Jul. 2000, A. Moss (1 female, NTQIC). <b>Indonesia</b>, Irian Jaya, Merauke, Kumbe, VLi378, 5.Aug. 1980 (1 male, ANIC). <b>Diagnosis.</b> Female: The only species in the Imicola complex with the combination of wing with proximal dark marking on costa of similar length to stigmatic dark spot, apical half of cell r 2 included in post-stigmatic pale spot, posterior margin of apical pale marking in cell m 1 curving posteriorly to reach vein M 2 well before the wing margin, often crossing vein M 2 and joining the pale spot in cell m 2 and with PH ratio less than 0.75. Male: there are currently no reliable characters for separating males of this species [...]
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Key to males of Australasian species of the Imicola complex 1. Apical pale marking in cell m 1 re... more Key to males of Australasian species of the Imicola complex 1. Apical pale marking in cell m 1 reaching or crossing vein M 2 subapically then narrowing apically and not touching vein M 2 at wing margin (Fig. 9), ventral membrane of 9 th sternite spiculate (Fig. 40)................................. <i>nudipalpis</i> - Apical pale marking in cell m 1 not narrowed apically and touching vein M 2 at wing margin (Fig. 5, 7), ventral membrane of 9 th sternite bare (Fig. 34, 37)............................................................................ 2 2. Wing with proximal dark marking on costa at most 1.5 times as long as stigmatic dark spot (Fig. 7)............ <i>brevitarsis</i> - Wing with proximal dark marking on costa at least twice as long as stigmatic dark spot (Fig. 5)................. <i>asiatica</i>
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IV Bluetongue Conference by David Gopurenko
Papers by David Gopurenko