NewsPreviously unknown insect species discovered in vintage amber

Previously unknown insect species discovered in vintage amber

Scientists, including those from Poland, decided to examine a fragment of amber with an insect trapped inside. Although the amber was found in the 1960s, it is only now that it has been established that it contains a previously unknown insect species!

An extraordinary discovery in amber. The contribution of Polish scientists.
An extraordinary discovery in amber. The contribution of Polish scientists.
Images source: © Facebook, Getty Images
Anna Wajs-Wiejacka

5 September 2024 19:24

The amber examined by Polish entomologists was one of the 70,000 exhibits in the Danish Natural History Museum's collections. The small piece of amber garnered significant interest from researchers, and for good reason: it contains a small insect from 40 million years ago, when temperatures in Europe were much higher. As the portal sciencesetavenir.fr reminds us, at that time, conditions around the North Sea were quasi-tropical, with a hot, humid climate that favoured the spread of flies, mosquitoes, and midges.

To facilitate the study of the insect embedded in the amber, scientists polished the stone, making it more transparent. During their efforts, it was confirmed that the piece analysed comes from Baltic amber deposits. They decided to identify the species to which the hymenopteran trapped in the amber belongs.

To do this, they focused on the genitalia of the Hymenoptera. "The male has appendages or claws next to the genitalia, which he uses to grasp the female during mating. We used the shape of these claws to identify it," explains Lars Vilhelmsen, one of the authors of the study published in the journal Scientific Reports.

Amber revealed a mystery from the past

According to the results, the hymenopteran trapped in the amber is a new species named Robsonomyia henningseni. Insects of the genus Robsonomyia are currently found only in Hokkaido, Japan, and California, USA. This was an intriguing discovery, especially considering the distance between these two areas.

For scientists, discovering an ancient member of this group in Europe suggests that they may have travelled from one area to another in stages, and Northern Europe was one of them.

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