For the first time in Europe, and specifically within the municipality of Elche, entomologists identified a new invasive insect originating from Asia. The creature is a type of beetle, and while it was regarded as a pest in its homeland, it remains to be seen whether it has become a threat on this continent. The emergence of this species in Europe marks a significant moment for monitoring and biosecurity, prompting researchers to closely track its population dynamics and geographic spread.
“Understanding the size of the population and whether other sightings occur will be essential. The earlier the presence is confirmed, the fewer resources and damage will accumulate,” stated Carlos R. de Queros, a researcher from Elche who co-authored a recent article highlighting the first European records of this insect. The publication appeared in a biodiversity journal and included contributions from Enrico Ruzzier, Hugo Mas, and Andrea Di Giulio, underscoring the collaborative effort to document this event.
The primary aim of this scientific work is to document the initial records of a non-native longhorn beetle in Europe, Olenecamptus bilobus. Three cases were recorded nearly simultaneously in Spain and Greece, signaling the potential for broader introduction and establishment that merits ongoing observation and analysis.
During the summer of 2023, East Asian specimens were encountered incidentally in both Spain and Greece. Olenecamptus bilobus (Cerambycidae, Lamiinae, Dorcaschematini) stands as the first record of this species entering European territory, a finding that has implications for local ecosystems and pest management strategies.
Notification to phytosanitary services
Specifically, cases of Olenecamptus bilobus were observed in the Saladas district of Elche. They appeared at night in the same location on two separate occasions, perched on a white wall and likely drawn to artificial lighting from a street lamp, all within a residential garden. These observations formed part of a private collection and were reported to local phytosanitary authorities, illustrating the pathway from incidental sightings to official monitoring.
Non-native wood-boring insects represent a major phytosanitary concern on a global scale. The introduction and establishment of such pests continue despite strict regulations, targeted surveillance, and the deployment of new early-detection tools and technologies. Several species have demonstrated the ability to bypass traditional controls at major ports of entry, contributing to their appearance in wild landscapes beyond their native range.
Observations also suggest that ornamental plant importation may be a key pathway for introducing non-native species, as nursery areas have reported the presence of such insects among cultivated stock. The beetle in question is not listed on any current European warning or quarantine lists. It is a polyphagous feeder, with a notable preference for plants within the genus Arthrocarpus, Ficus (fig trees), and Morus (mulberries).
This insect, which is particularly adept at boring hardwoods, is reported across a broad region including China, the Comoros, Réunion, Mauritius, the Andaman and Nicobar Islands, Madagascar, Bhutan, Vanuatu, India, Pakistan, and Australia, indicating a wide potential distribution and the need for vigilant monitoring and rapid response if introductions occur elsewhere.
See if you can get used to the climate
The beetle is deemed harmful in several Asian and Oceanian countries where it originates. In Europe, it is a first-in-records situation, so researchers must determine whether the population can sustain itself, adapt to local climate conditions, and possibly establish in other regions, both regionally and nationally. Understanding its potential spread is crucial to knowing whether additional communities may encounter the insect. Experts note limited information about Olenecamptus bilobus, but evidence suggests it targets trees in the ficus family, with a particular affinity for ornamental varieties.
European observers emphasize the need for caution regarding accidental introductions of non-native species and highlight that some insects can evade containment measures. The discovery underscores ongoing challenges in safeguarding ecosystems from new arrivals while balancing trade and horticultural practices.
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Environmental authorities suggested reviewing import pathways and strengthening early-detection programs to prevent broader establishment. Continued surveillance and research collaboration will help clarify the insect’s behavior, host range, and potential impacts on local forestry and ornamental landscapes.