A cute species of peacock spider has been named after Nemo, the beloved clownfish in Pixar's Finding Nemo franchise.
Maratus nemo, which is only about the size of a grain of rice at just over 4mm in length, was discovered by a citizen scientist in South Australia.
The new species has been named for its iridescent orange and white stripes, which scientists say are used to attract a mate during courtship.
Peacock spiders belong to the genus Maratus, which has come to prominence in the last decade due to the male's vibrant colours and 'dancing' displays.
Maratus nemo is described in a new paper published in Evolutionary Systematics, authored by Australian spider enthusiast Joseph Schubert.
'It has a really vibrant orange face with white stripes on it, which kind of looks like a clown fish, so I thought Nemo would be a really suitable name for it,' said Schubert, an 23-year-old arachnologist at Museums Victoria.
'Curiously, Maratus nemo was found in an ephemeral wetland complex on marshy vegetation in shallow water.
'No other species of Maratus are known to occupy such habitats.'
The tiny Peacock spiders, or Maratus spiders, are native to Australia and are internet sensations for their elaborate courtship dances.
During the species' unique 'dancing' courtship, the male elevates a single leg, slowly waving it in a partially flexed position.
As the female approaches, the male raises and more rapidly waves both legs.
Maratus nemo was discovered by Sheryl Holliday, a South Australian citizen scientist and an ecological field officer for Nature Glenelg Trust.
The species appears to be quite widespread, according to Holliday.
'I've seen about 40 individuals all up at three different locations… I'm sure there would be more in the south east of South Australia and in western Victoria as well,' she said.
Holliday hand-collected five Maratus nemo specimens – four male and one female – from Mount McIntyre and Nangwarry, South Australia, in November 2020.
She knew this spider was something different from the moment she found it, but she couldn't identify the spiders as any particular species.
'He had a plain back but his orangey-red face is what stood out and I hadn't seen anything like it before, so I knew it had to be a new one,' she said.
Holliday posted photos to peacock spider appreciation page Australian Jumping Spiders in the hope someone would be able to identify them – and the photos caught the eye of Schubert.
'I came across them and I thought, 'Oh, wow that looks like it might be a new species' so I got in contact with her and she ended up sending me some specimens,' said Schubert.
'I got the specimens in the post and then I took a whole bunch of photos of them while they were alive and documented the courtship display of the male.
'I preserved them in ethanol and brought them back to the lab and I studied the features which made them different from other spiders.
'Generally the behaviour will be different between each species although we use other characteristics like the patterns of the male to determine different species from each other.'
To date there are now 92 species of peacock spider – up from just 15 in 2011.
'I've described 13 species of peacock spiders and five species of their cousins Jotus, which is another genus of jumping spider,' said Schubert, who found his first peacock spider in 2016.
Seven of those new peacock spiders came in 2020 alone.
Last year, Schubert reported the discovery of a peacock spider resembling Vincent van Gogh's famous 'Starry Night' painting, in Little Desert National Park in Victoria.
'I think Peacock spiders have captured the public's attention just because they're really, really cute for spiders – they've got these massive forward-facing eyes and you can relate to them a lot more than you can to a Huntsman for example,' he said.
Source: Daily Mail, Evolsyst Pensoft
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Maratus nemo, which is only about the size of a grain of rice at just over 4mm in length, was discovered by a citizen scientist in South Australia.
The new species has been named for its iridescent orange and white stripes, which scientists say are used to attract a mate during courtship.
Peacock spiders belong to the genus Maratus, which has come to prominence in the last decade due to the male's vibrant colours and 'dancing' displays.
Maratus nemo is described in a new paper published in Evolutionary Systematics, authored by Australian spider enthusiast Joseph Schubert.
'It has a really vibrant orange face with white stripes on it, which kind of looks like a clown fish, so I thought Nemo would be a really suitable name for it,' said Schubert, an 23-year-old arachnologist at Museums Victoria.
'Curiously, Maratus nemo was found in an ephemeral wetland complex on marshy vegetation in shallow water.
'No other species of Maratus are known to occupy such habitats.'
The tiny Peacock spiders, or Maratus spiders, are native to Australia and are internet sensations for their elaborate courtship dances.
During the species' unique 'dancing' courtship, the male elevates a single leg, slowly waving it in a partially flexed position.
As the female approaches, the male raises and more rapidly waves both legs.
Maratus nemo was discovered by Sheryl Holliday, a South Australian citizen scientist and an ecological field officer for Nature Glenelg Trust.
The species appears to be quite widespread, according to Holliday.
'I've seen about 40 individuals all up at three different locations… I'm sure there would be more in the south east of South Australia and in western Victoria as well,' she said.
Holliday hand-collected five Maratus nemo specimens – four male and one female – from Mount McIntyre and Nangwarry, South Australia, in November 2020.
She knew this spider was something different from the moment she found it, but she couldn't identify the spiders as any particular species.
'He had a plain back but his orangey-red face is what stood out and I hadn't seen anything like it before, so I knew it had to be a new one,' she said.
Holliday posted photos to peacock spider appreciation page Australian Jumping Spiders in the hope someone would be able to identify them – and the photos caught the eye of Schubert.
'I came across them and I thought, 'Oh, wow that looks like it might be a new species' so I got in contact with her and she ended up sending me some specimens,' said Schubert.
'I got the specimens in the post and then I took a whole bunch of photos of them while they were alive and documented the courtship display of the male.
'I preserved them in ethanol and brought them back to the lab and I studied the features which made them different from other spiders.
'Generally the behaviour will be different between each species although we use other characteristics like the patterns of the male to determine different species from each other.'
To date there are now 92 species of peacock spider – up from just 15 in 2011.
'I've described 13 species of peacock spiders and five species of their cousins Jotus, which is another genus of jumping spider,' said Schubert, who found his first peacock spider in 2016.
Seven of those new peacock spiders came in 2020 alone.
Last year, Schubert reported the discovery of a peacock spider resembling Vincent van Gogh's famous 'Starry Night' painting, in Little Desert National Park in Victoria.
'I think Peacock spiders have captured the public's attention just because they're really, really cute for spiders – they've got these massive forward-facing eyes and you can relate to them a lot more than you can to a Huntsman for example,' he said.
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