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Systematics and host plant associations of the Australian lace bug genus Nethersia (Insecta: Heteroptera: Tingidae), including the description of eighteen new species

In: Insect Systematics & Evolution
Authors:
Gerasimos Cassis
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Philippe Koenig
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Celia Symonds
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Ryan Shofner Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052 Australia

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A systematic revision of the lace bug genus NethersiaHorváth 1925 is given including a redescription of the genus. Previously described species N. absimilisDrake 1944, N. haplotesDrake and Ruhoff 1962, N. maculosaHorváth 1925 and N. setosa (Hacker 1927) are redescribed. The New Caledonian species Tingis chazeauiGuilbert (1997) is transferred to Nethersia. Eighteen new species are described: N. acaciaphila sp.n., N. appha sp.n., N. bipannanota sp.n., N. boorabbinensis sp.n., N. costata sp.n., N. finlayae sp.n., N. kimberleyensis sp.n., N. magna sp.n., N. mareeba sp.n., N. mcquillani sp.n., N. nigra sp.n., N. pilbara sp.n., N. silveirae sp.n., N. stipula sp.n., N. tatarnici sp.n., N. tanami sp.n., N. tomentosa sp.n. and N. westralensis sp.n. Nethersia pugnaDrake 1944 is removed from synonymy with N. maculosa Horváth and treated as a valid species. An identification key species is given which relies on colour patterning, vestiture and texture of the dorsum. Nethersia nigritarsis (Horváth, 1925) is transferred from Nethersia to Tingis and designated as incertae sedis. Phylogenetic analysis of Nethersia was undertaken resulting in fully resolved topologies for a range of concavity constant settings (K = 2–6) under implied weights. The plant associations of Nethersia are documented, with most species recorded from phyllodinous Acacia species, with twenty designated as host plants.

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