Expansion of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) to European part of Russia in 2018−2020
2020
Ruchin, A. B., Mordovia State Nature Reserve and National Park “Smolnyˮ, Saransk (Russian Federation). Joint Directorate | Egorov, L. V., Mordovia State Nature Reserve and National Park “Smolnyˮ, Saransk (Russian Federation). Joint Directorate;State Nature Reserve “Prisurskyˮ, Cheboksary (Russian Federation) | Lobachev, E. A., National Research Mordovia State Univ., Saransk (Russian Federation) | Lukiyanov, S. V., National Research Mordovia State Univ., Saransk (Russian Federation) | Sazhnev, A. S., Papanin Inst. for Biology of Inland Waters, Borok (Russian Federation);Severtsov Inst. of Ecology and Evolution, Moscow (Russian Federation) | Semishin, G. B., Mordovia State Nature Reserve and National Park “Smolnyˮ, Saransk (Russian Federation). Joint Directorate
The mass reproduction of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) was recorded in many Russian regions in 2018−2020. The material was collected from 13 areas of the Central Russia and the Volga region, and from one area of the Caucasus. New data on the distribution in the European part of Russia of the invasive Harmonia axyridis is presented. The species recorded for from the Republic of Tatarstan, Nizhny Novgorod, Pskov, Kursk, Tambov, Astrakhan regions and the Chechen Republic for the first time. The ratio of morphs of the species in some localities was analyzed. Red morphs (f. succinea and f. spectabilis) apparently dominated, which can be explained by their longer lifespan. The nominative morph (f. axyridis) was observed for populations of H. axyridis from the Kursk region. Probably, the expansion of the species in European Russia has two ways: the first from the side of Western and Eastern Europe, and the second from the Caucasus.
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