Jumping spiders, an earthworm, fish and more than 100 insects have been discovered and named by Australia's national science agency in the past 12 months.
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The CSIRO says its a win for biodiversity, as only 25 per cent of Australia's species are known to science.
By naming the new species, researchers, governments and the community are better able to understand the nation's vast ecosystems.
In total, 139 species ranging from ants to fish were named, 117 of them insects and 11 of them jumping spiders.
A newly named ant is particularly special because of its support of the endangered bulloak jewel butterfly, CSIRO entomologist David Yeates says.
"The ecological requirements for this beautiful butterfly are very narrow, which is probably why it is so rare," Dr Yeates said.
"The ant species we've now named needs to be nesting in a mature bulloak.
"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 predators and receive a sugary gift from the caterpillars, a win-win for both species."
He said Australia was in a very exciting phase of species discovery.
Newly named species in the past 12 months include:
* Four marine fishes
* Three plants
* One frog
* 117 insects including 39 gall wasps from the Americas and 34 beetles
* 14 other invertebrates including 11 jumping spiders.
(Source: CSIRO)
Australian Associated Press