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From spiders to a 'special ant': Australia has more than 100 new species

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More than 100 new species have been discovered and named in Australia within the past year, including 11 jumping spiders and a "special" ant, the CSIRO says.

The national science agency said the nation has 117 new insects, three plants, four marine fish, one frog, and 14 other invertebrates.

The discoveries have been branded a "win for biodiversity", with researchers particularly excited about one ant.

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CSIRO entomologist Dr David Yeates said the known but newly named ant, Anonychomyrma inclinata, was special, as it supports the endangered bulloak jewel butterfly, Hypochrysops piceatus.

"The ecological requirements for this beautiful butterfly are very narrow, which is probably why it is so rare," Yeates said.

"The ant species we've now named needs to be nesting in a mature bulloak, Allocasuarina luehmannii.

"The butterfly caterpillars live under bark and are carried to soft bulloak leaves to feed at night by 'babysitter' ants.

"The ants protect the caterpillars from predation and receive a sugary gift from the caterpillars, a win-win for both species."

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The endangered Bulloak Jewel Butterfly, Hypochrysops piceatus.

CSIRO scientist John Pogonoski said the new, "elusive" silverspot weedfish, Heteroclinus argyrospilos, was described from only two known specimens.

Both of these were collected from south-western Australia by researchers on the former CSIRO Research Vessel Southern Surveyor in 2000 and 2005.

"We named three new species of small, brightly-coloured anthias by comparing specimens of related species held in fish collections," Pogonoski said.

"New species of anthias are still being recognised because they are rarely encountered due to being outside of normal diving depths, small in size, or living in habitats difficult to sample."

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Heteroclinus argyrospilos (Silverspot Weedfish) is known from south-western Australia (SA & WA) in 55-100m depth. Only two specimens of this elusive species are currently known

Also among the new species is the world's first true millipede, Eumillipes persephone, which has more than 1000 legs.

Scientists found four members of the new species in southern Western Australia, 60 metres underground last year.

And 34 new beetles, including two weevils in the new genus Undarobius, were found in lava caves at Volcanic National Park in north-eastern Queensland.

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The leggiest animal on the planet was discovered in Western AustraliaLava caves within Queensland's Undara Volcanic National Park were a treasure trove for new insect species.

Yeates added the newly named species highlight the importance of scientific collaboration.

"Working together with our research community to name species is incredibly important – it is the first step in Australia understanding and managing its biodiversity," Yeates said.

"As a country, we are still in the very exciting phase of species discovery."

CSIRO said only about 25 per cent of Australia's species are known to science.



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