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Overwintering and New Records of Invasive Vol. 5 (4), 2020 Reсeived 29.09.2020 Revised 01.12.2020 Accepted 14.12.2020 ORIGINAL RESEARCH Open Access DOI 10.21685/2500-0578-2020-4-4 OVERWINTERING AND NEW RECORDS OF INVASIVE HARLEQUIN LADYBIRD HARMONIA AXYRIDIS (PALLAS, 1773) (COLEOPTERA: COCCINELLIDAE) AFTER MASS EXPANSION TO EUROPEAN PART OF RUSSIA IN 2018–2019 A. S. Sazhnev1, V. V. Anikin2, V. V. Zolotukhin3 1 Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, 101 Borok, Yaroslavl region, 152742, Russia; Severtsov Institute of Ecology and Evolution, 33 Leninsky prosp., Moscow, 117071, Russia E-mail: [email protected] 2 Chernyshevsky Saratov State University, 83 Astrakhanskaya street, Saratov, 410012, Russia E-mail: [email protected] 3 Ulyanovsk State Pedagogical University, 4 Lenin square, Ulyanovsk, 432701, Russia E-mail: [email protected] Abstract. The data on the first record of harlequin ladybird (Harmonia axyridis) in Ryazan, Tula, Tver, Oryol, Orenburg regions and the Udmurt Republic are presented. On the studied parts of invasive distribution area of H. axyridis, the development of two generations is recorded. H. axyridis winters during imaginal diapause, gather- ing in large groups. The date of the migratory flight varies from early September to mid-October. Many bugs die of starvation during the postwintering period. Overwintering specimens of Harmonia axyridis (after mass expansion to European part of Russia in 2018–2019) were recorded in many regions in 2020: Kursk, Penza, Samara, Saratov, Volgograd, Astrakhan regionns, the Republic of Mordovia, Tatarstan and Chuvash Republic. Key words: Harmonia axyridis, harlequin ladybird, multicolored Asian ladybird, invasive species, fauna, new records. Acknowledgements. We are grateful to Ju. V. Volkova (Ulyanovsk, Russia) and O. V. Sinichkina (Saratov, Russia) for providing specimens of Harmonia axyridis. The research of A. S. Sazhnev was funded by the Russian Science Foundation, Project No 16-14-10031. For citation: Sazhnev A.S., Anikin V.V., Zolotukhin V.V. Overwintering and new records of invasive harlequin la- dybird Harmonia axyridis (pallas, 1773) (coleoptera: coccinellidae) after mass expansion to European part of Russia in 2018–2019. Russian Journal of Ecosystem Ecology. 2020;5(4). Available from: https://doi.org/10.21685/2500-0578- 2020-4-4 УДК 581.524.2 (595.763.79) ЗИМОВКА И НОВЫЕ НАХОДКИ ИНВАЗИОННОЙ КОРОВКИ HARMONIA AXYRIDIS (PALLAS, 1773) (COLEOPTERA, COCCINELLIDAE) ПОСЛЕ МАССОВОЙ ЭКСПАНСИИ НА ТЕРРИТОРИИ ЕВРОПЕЙСКОЙ ЧАСТИ РОССИИ В 2018–2019 ГОДАХ А. С. Сажнев1, В. В. Аникин2, В. В. Золотухин3 1 Институт биологии внутренних вод им. И. Д. Папанина Российской академии наук, Россия, 152742, Ярославская обл., Борок, 101; Институт проблем экологии и эволюции им. А. Н. Северцова Российской академии наук, Россия, 117071, г. Москва, Ленинский проспект, 33 E-mail: [email protected] 2 Саратовский государственный университет им. Н. Г. Чернышевского, Россия, 410012, г. Саратов, ул. Астраханская, 83 E-mail: [email protected] 3 Ульяновский государственный педагогический университет, Россия, 432701, г. Ульяновск, пл. Ленина, 4 E-mail: [email protected] © Sazhnev A. S., Anikin V. V., Zolotuhin V. V. 2020 Данная статья доступна по условиям всемирной лицензии Creative Commons Page 1 of 6 Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), которая дает разрешение на неограниченное ис- пользование, копирование на любые носители при условии указания авторства, источника и ссылки на лицензию Creative Commons, а также изменений, если таковые имеют место. Vol. 5 (4), 2020 Аннотация. Впервые данные по азиатской божьей коровке (Harmonia axyridis) приводятся для Рязанской, Тульской, Тверской, Орловской, Оренбургской областей и территории Республики Удмуртия. На исследо- ванных участках инвазионного ареала H. axyridis зарегистрировано развитие двух поколений. В период има- гинальной диапаузы H. axyridis зимуют, собираясь большими группами. Сроки перелета на зимовку варьиру- ют от начала сентября до середины октября. Многие жуки погибают от голода после зимовки. Перезимовавшие (после массовой экспансии в Европейской части России в 2018–2019 гг.) особи Harmonia axyridis отмечены в 2020 г. для Курской, Пензенской, Самарской, Саратовской, Волгоградской, Астраханской областей, а также Республики Мордовия, Татарстана и Чувашии. Ключевые слова: Harmonia axyridis, азиатская божья коровка, божья коровка-арлекин, инвазионный вид, фауна, новые находки. Introduction thanks to the online project www.inaturalist.org. Names of morphs are given according to Andri- The harlequin ladybird Harmonia axyridis (Pal- anov et al. [18]. Total over 1000 specimens of las, 1773) is one of the most rapidly spreading bee- H. axyridis have been examined (2018–2020). tle species, its range is increasing at a rate of 100– Map was created in SimpleMappr online ser- 500 km per year [1]. The original area vice (www.simplemappr.net). of H. axyridis is Asia including particular districts of the Oriental Region [2, 3], where distribution Results and discussion of this species is restricted by tropical climates. The most northwestern finding native point Harmonia axyridis (Pallas, 1773) of H. axyridis is Tyukalinsk, Omsk oblast [3]. Material examined. Orenburg oblast: Ilek The Asian (initial) distribution area of this species distr., Ilek vill., 10.10.2019, 1 ex. (f. succinea), un- is continuous and comprises a wide variety of eco- known collector. Oryol oblast: Oryol, 8.10.2018, logical conditions [3]. In the last 25 years 2 exs. (f. succinea), unknown collector. Ryazan ob- H. axyridis has established in Europe, North Amer- last: Rayzan distr., Murmino vill., 7.05.2020, 1 ex. ica, South America, and Africa [1]. In European (f. spectabilis), unknown collector; Rayzan, part of Russia this ladybird was firstly recorded in 11.05.2020, 1 ex. (f. succinea), unknown collector. the 2004 year in Belgorod oblast [4], and now it is Saratov oblast: Khvalynsk distr., Khvalynsk, fa- widely distributed through the European Russia, cility of Saratov State University, 52.4861°N, where it is known from Kaliningrad, Belgorod, 48.0439°E, UV-light, 23–27.06.2020, 7 exs. (5 – Lipetsk, Moscow, Bryansk, Voronezh and Rostov- f. succinea, 1 – f. conspicua, 1 – f. spectabilis), on-Don oblasts, Krasnodar and Stavropol Kray, V. V. Anikin leg.; Saratovsky district, Raslovka-2 Adygea, Dagestan, Kabardino-Balkaria, North vill., 51.7777°N, 46.2339°E, holiday village, in the Ossetia, Crimea and Bashkir Republics [5–14]. garden, at day, 28.06.2020, 2 exs. (f. succinea), The mass reproduction of Harmonia axyridis (Pal- O. V. Sinichkina leg.; Saratov, B. Sadovaya str., las, 1773) (Coleoptera: Coccinellidae) was record- 51.5217°N, 45.9837°E, apartment, on the UV- ed in many Russian regions (Republics of Ta- light, 6–13.08.2019, 1 ex. (f. succinea), tarstan and Mordovia, Chuvash Republic, Nizhny V.V. Anikin leg.; same locality, on the UV-light, Novgorod, Pskov, Kursk, Tambov, Penza, Ulya- 20.08.2019, 2 exs. (f. succinea), V. V. Anikin leg.; novsk, Samara, Saratov, Volgograd, Astrakhan ob- same locality, on the UV-light, 20–25.08.2019, lasts and the Chechen Republic) in 2018–2019 12 exs. (10 – f. succinea, 2 – f. spectabilis), [15–17]. Monitoring an invasive species remains V. V. Anikin leg.; same locality, on the UV-light, relevant, and the opportunity of the species (as 27.08.2019, 5 exs. (f. succinea), V. V. Anikin leg.; Harmonia axyridis) to assimilate and gain a foot- Novouzensk distr., Novouzensk, 23.08.2020, 1 ex. hold in a new territory requires a detailed study. (f. succinea), unknown collector. Tula oblast: She- This determined the purpose of this research. kino distr., Shekino vill., 3.05.2020, 1 ex. (f. succinea), unknown collector. Tver oblast: Material and methods Konakovo, 5.10.2020, 1 ex. (f. succinea) N. Lari- onov leg.; Udmurt Republic: Glazov distr., Gla- The material has been collected by authors and zov, 24.09.2019, 1 ex. (f. spectabilis), unknown colleagues during investigation of the complex ex- collector. pedition in 2020 year. Specimens of H. axyridis It is the first records of harlequin ladybird for were collected using UV-light trap and manual col- Tula, Tver, Rayzan, Oryol, Orenburg oblasts and lecting. The part of the observations was made the Udmurt Republic (Fig. 1). Sazhnev A. S., Anikin V. V., Zolotuhin V. V. Page 2 from 6 Vol. 5 (4), 2020 Fig. 1. Records of Harmonia axyridis from European Russia: gray circles – literature data, black circles – new records One to four generations of H. axyridis develop Postwintering migration occurs as the tempera- during an active season, depending on the duration ture rises in late February to early May, depending of the warm period [3], on the studied parts of are- on climatic conditions [3, 20]. Many beetles die of as recorded two generations develop (as on the starvation during this period, when humidity is low biggest part of the area). and food is absent [3]. On the territory of the na- H. axyridis winters during imaginal diapause, tional park «Khvalynsky», where in the fall of gathering in large groups in cracks at southern 2019 there was a mass outbreak of the species [15], slopes of mounds and hills, as well as in houses, the species overwintered, but «lost» most of the within a major part of both the native and invasive adults who went to winter. The number of dead distribution area [3, 19, 20], this is also observed in adults in shelters (forest floor, clumps of trees, at- the studied populations. Overwintering specimens tics, etc.) to the number of survivors was at the end of Harmonia axyridis were recorded in many re- of May – mid-June 2020 as 1:500–600! gions of European part of Russia in 2020: Kursk, Harmonia axyridis is a very polymorphic spe- Penza, Samara, Saratov, Volgograd, Astrakhan ob- cies with variations in the coloration pattern within lasts, the Republic of Mordovia, Tatarstan and a fairly broad range [22, 23]. It has long been an Chuvash Republic [17, and orig.]. The date of the object of geneticists’ study [1, 3, 23–25]. New rec- migratory flight varies from early September to ords (2020) in European part of Russia presented mid-October, and depends on climatic conditions two coloration form: f.
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