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New butterfly species discovered in Israel for the first time in 109 years

Date:
May 5, 2017
Source:
Pensoft Publishers
Summary:
Little does a scientist expect to discover a new species of easy-to-see and well-studied animal, especially if it inhabits thoroughly explored areas. However, a biologist has now made a startling discovery: a new, beautiful butterfly named Acentria's fritillary, which was spotted as it flew over the slopes of the popular Mount Hermon ski resort in northern Israel.
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This is Acentria's fritillary (Melitaea acentria), a new butterfly species discovered in Israel on the slopes of the popular Mount Hermon ski resort.
Credit: Dr Vladimir Lukhtanov; CC-BY 4.0

Vladimir Lukhtanov, entomologist and evolutionary biologist at the Zoological Institute in St. Petersburg, Russia, made a startling discovery: what people had thought was a population of a common species, turned out to be a whole new organism and, moreover -- one with an interesting evolutionary history. This new species is named Acentria's fritillary (Melitaea acentria) and was found flying right over the slopes of the popular Mount Hermon ski resort in northern Israel. It is described in the open access journal Comparative Cytogenetics.

"To me, it was a surprise that no one had already discovered it," says Vladimir Lukhtanov.

"Thousands of people had observed and many had even photographed this beautifully coloured butterfly, yet no one recognised it as a separate species. The lepidopterists (experts in butterflies and moths) had been sure that the Hermon samples belonged to the common species called Persian fritillary (Melitaea persea), because of their similar appearance, but nobody made the effort to study their internal anatomy and DNA."

In 2012, Vladimir Lukhtanov, together with his students, initiated an exhaustive study of Israeli butterflies using an array of modern and traditional research techniques. In 2013, Asya Novikova (until 2012, a master's student at St. Petersburg University and, from 2013, a PhD student at the Hebrew University, Jerusalem) sampled a few fritillaries from Mt. Hermon.

It was at that time when the researchers noticed that the specimens "didn't look right" -- their genitalia appeared different from those of the typical Persian fritillary. Over the next few years, Lukhtanov and his students studied this population in-depth. They carried out sequencing DNA from the specimens and found that they had a unique molecular signature -- very different from the DNA of any other fritillary.

The Acentria's fritillary seems to be endemic in northern Israel and the neighbouring territories of Syria and Lebanon. Its evolutionary history is likely to prove interesting.

"The species is probably one of a handful of butterflies known to have arisen through hybridisation between two other species in the past," says Lukhtanov. "This process is known to be common in plants, but scientists have only recently realised it might also be present in butterflies."

This is the first new butterfly species discovered and described from the territory of Israel in 109 years.


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Journal Reference:

  1. Vladimir A. Lukhtanov. A new species of Melitaea from Israel, with notes on taxonomy, cytogenetics, phylogeography and interspecific hybridization in the Melitaea persea complex (Lepidoptera, Nymphalidae). Comparative Cytogenetics, 2017; 11 (2): 325 DOI: 10.3897/CompCytogen.v11i2.12370

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Pensoft Publishers. "New butterfly species discovered in Israel for the first time in 109 years." ScienceDaily. ScienceDaily, 5 May 2017. <www.sciencedaily.com/releases/2017/05/170505113858.htm>.
Pensoft Publishers. (2017, May 5). New butterfly species discovered in Israel for the first time in 109 years. ScienceDaily. Retrieved May 24, 2017 from www.sciencedaily.com/releases/2017/05/170505113858.htm
Pensoft Publishers. "New butterfly species discovered in Israel for the first time in 109 years." ScienceDaily. www.sciencedaily.com/releases/2017/05/170505113858.htm (accessed May 24, 2017).

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