Scientists have described five new species of parasitoid wasp from Cyprus, more than doubling the number of chalcid wasps known to be found nowhere else on the island. The wasps, all belonging to the family Pteromalidae, are small insects that play an important role as natural pest controllers, yet remain poorly studied across much of Southeastern Europe and the Middle East.

The research, carried out by Evangelos Koutsoukos and Mircea-Dan Mitroiu and published in the open-access journal ZooKeys, was part of a wider project funded by the UK Government's Darwin Plus initiative. The project, titled “Species richness and biological invasions of Chalcid wasps in Akrotiri Peninsula”, was administered by the Enalia Physis Environmental Research Centre and supervised by Dr Angeliki Martinou, with support from the National and Kapodistrian University of Athens, the University of Leeds, and Alexandru Ioan Cuza University.

“Before the start of this study, our knowledge regarding the chalcid wasp fauna of the Akrotiri Sovereign Base Area (SBA) and the rest of the island of Cyprus was extremely limited,” said Koutsoukos. “Chalcid wasps comprise a hyperdiverse group of insects that serve as biological controllers both in natural and manmade ecosystems, and as such it is crucial to enrich our knowledge, towards understanding their true extend of biodiversity, ecology, and their role in the various trophic webs they participate across different ecosystems.”

Each of the five new species was named with a story behind it. Two of the species [Ablaxia makrisi and Erythromalus makrisi] were named after Mr. Christodoulos Makris, prominent Cypriot entomologist, for his contributions on the Cypriot biodiversity, and for collecting the holotypes of these two species,” Koutsoukos explained.

Hemitrichus akrotiriensis takes its name from the Akrotiri peninsula, described by Koutsoukos as “a protected area and one the greatest biodiversity hotspots in Cyprus, where the holotype was also collected from.” Another species, Ablaxia toxeftrae, was named after Toxeftra beach in the Akamas peninsula, where its holotype was found.

The final species carries perhaps the most evocative name of all. “Janssoniella aphrodite was named after the Greek Ancient Goddess Aphroditi, since the holotype of this species was collected in Yeroskipou area of Paphos, where the Goddess was worshipped during ancient times,” said Koutsoukos.

Before this study, only three chalcid wasp species were known to be unique to Cyprus. “Our collecting efforts yielded many more interesting specimens, which might represent new species as well,” said Koutsoukos, “and as such it is evident that these numbers are an underestimation of the true biodiversity of the island.”

“The outcomes of this project will contribute towards the enrichment of our knowledge of the biodiversity, not only of the island of Cyprus and the U.K. SBAs, but the whole region's as well,” Koutsoukos said.