FIRST DATA ON ESTABLISHMENT AND POPULATION TREND OF THE NEOTROPICAL DELPHASTUS CATALINAE (HORN, 1895) (COLEOPTERA COCCINELLIDAE) IN ITALY

IF 0.8 4区生物学 Q3 ZOOLOGY

Redia-Giornale Di Zoologia Pub Date : 2023-08-30 DOI:10.19263/redia-106.23.08

S. Bella, R. Catania, C. Baviera

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Abstract

After the first record in 2018 in southern Italy and in Sicily, the Neotropical ladybird Delphastus catalinae (Horn, 1895) (Coleoptera: Coccinellidae, Sticholotidinae) has been rediscovered and monitored in Sicily. The population of this non-indegenous species was observed in an experimental citrus orchard with organic management in eastern Sicily. D. catalinae is the only Italian and Sicilian allochthonous ladybird species with Neotropical origin. It was abundant in the study area and active all year, especially in autumn-winter. Overall, a total of 971 specimens of D. catalinae were collected during the three years field surveys on twenty sampled trees. Over the years the population of D. catalinae increased, as increased the percentage of D. catalinae specimens on the total number of ladybirds collected. More studies will be needed for monitoring the spread of D. catalinae in Sicily and the effective interaction with other indigenous ladybird predators of Aleyrodidae like Clitostethus arcuatus (Rossi, 1794). Key Words: Ladybeetles; Delphastus catalinae; Delphastus pusillus; Clitostethus arcuatus; Italy; Biological invaders.

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意大利新热带卡塔利纳角(角，1895)(鞘翅目coccinellidae)的建立和种群趋势的首次资料

继2018年在意大利南部和西西里岛首次记录后，在西西里岛重新发现并监测了新热带瓢虫Delphastus catalinae (Horn, 1895)(鞘翅目:瓢虫科，瓢虫科)。在西西里岛东部的一个有机管理柑橘实验果园中，观察了这种非本地物种的种群。catalinae瓢虫是唯一的意大利和西西里外来的新热带起源瓢虫。它在研究区丰富，全年活跃，特别是在秋冬季。在3年的野外调查中，共采集到卡塔林纳木971株。多年来，卡塔琳娜瓢虫的种群数量随着卡塔琳娜瓢虫标本占瓢虫总数的比例的增加而增加。需要更多的研究来监测catalinae在西西里岛的传播，以及与其他本地瓢虫捕食者如Clitostethus arcuatus的有效相互作用(Rossi, 1794)。关键词:瓢虫;Delphastus catalinae;Delphastus pusillus;Clitostethus arcuatus;意大利;生物入侵者。

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来源期刊

Redia-Giornale Di Zoologia ZOOLOGY-

CiteScore

1.20

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Redia supports its long history of basic and applied research in entomology and invertebrate zoology in the field of crop and forest tree protection responding at the same time to the increasing need of innovation and technological improvement.