Two invasive bark beetles Phloeosinus armatus Reitter and Xylosandrus compactus (Eichhoff) (Coleoptera, Curculionidae: Scolytinae) newly recorded in Russia

• Published in: Bulletin OEPP 2024-08, Vol.54 (2), p.166-181
• Main Authors: Karpun, Natalia N., Petrov, Alexander V., Zhuravleva, Elena N., Shoshina, Elena I., Kirichenko, Natalia I., Mandelshtam, Mikhail Yu, Musolin, Dmitrii L.
• Format: Article
• Language: English
• Subjects: alien species; ambrosia beetles; Bark; bark beetles; Beetles; Black Sea coast; Borers; Caucasus; Coleoptera; Cupressaceae; Cupressus; Cupressus sempervirens; Curculionidae; Deoxyribonucleic acid; DNA; Fruits; Genetic variability; Identification keys; Introduced species; invasive insect pest; Invasive species; Krasnodar Territory; Laurus; Laurus nobilis; Magnolia; Magnolia grandiflora; Ornamental plants; Pests; Phloeosinus; Plantations; Planting; Populations; Prunus; Prunus laurocerasus; Scolytinae; Sochi City; Xylosandrus compactus
• ISSN: 0250-8052; 1365-2338
• DOI: 10.1111/epp.13019

In 2023, two bark beetle species were recorded in Russia for the first time based on findings in Sochi: the cypress bark beetle, Phloeosinus armatus, on Mediterranean cypress (Cupressus sempervirens) and the black twig borer, Xylosandrus compactus, on southern magnolia (Magnolia grandiflora), noble laurel (Laurus nobilis), and cherry laurel (Prunus laurocerasus). P. armatus is a Mediterranean pest attacking exclusively Cupressaceae. In Sochi, it was recorded on cypress trees in several locations, including on plants for planting imported from Italy. X. compactus is a highly polyphagous pest from East Asia. In Sochi, it has established populations in ornamental planted areas. The paper provides species descriptions with identification keys. One specimen of X. compactus from Sochi was DNA‐barcoded and compared with 31 specimens deposited in the BOLD and GenBank under the name of X. compactus. High genetic variability (>7%) was detected highlighting the difficulty of identifying ‘true’ X. compactus using DNA data. Genetically, the specimen of X. compactus from Sochi was identical to those from Italy, Spain and France. An accidental introduction with ornamental plants for planting from Italy is considered the most probable pathway of invasion of both bark beetle species into the Russian Black Sea coast of the Caucasus. Deux scolytes envahissants Phloeosinus armatus Reitter et Xylosandrus compactus (Eichhoff) (Coleoptera, Curculionidae: Scolytinae) nouvellement signalés en Russie En 2023, deux espèces de scolytes ont été signalées en Russie après leur découverte à Sotchi: le scolyte Phloeosinus armatus sur le cyprès méditerranéen (Cupressus sempervirens) et le scolyte noir des rameaux Xylosandrus compactus sur le magnolia d'Amérique (Magnolia grandiflora), le laurier commun (Laurus nobilis) et le laurier cerise (Prunus laurocerasus). P. armatus est un organisme nuisible méditerranéen attaquant exclusivement les Cupressaceae. À Sotchi, il a été signalé sur des cyprès à plusieurs endroits, y compris sur des végétaux destinés à la plantation importés d'Italie. X. compactus est un organisme nuisible hautement polyphage d'Asie de l'Est. Il a établi des populations dans des zones de plantations ornementales à Sotchi. Cet article décrit ces espèces et donne des clés d’identification. Un code‐barres ADN a été défini à partir de l'ADN d'un spécimen de X. compactus de Sotchi a et comparé à 31 échantillons déposés dans BOLD et GenBank sous le nom de X. compactus. Une vari