Research Article

Distribution of the ladybird Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) in Algeria and life history parameters in outdoor rearing

Volume: 49 Number: 3 September 30, 2025
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Distribution of the ladybird Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) in Algeria and life history parameters in outdoor rearing

Abstract

The invasive ladybird Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) has been recorded in several regions in Algeria. The aim of the study was to provide detailed data on location, date, host plant and prey species. The previously unpublished distribution data include records from 2017 to 2021. As host plants, Harmonia axyridis utilized wild herbaceous plants, ornamental shrubs, fruit trees, an evergreen tree, and a vegetable, but no conifers. The sampling dates span most of the year, most observations were made in coastal lowlands up to 500 m. The second aim is to measure the developmental time, survival, fertility and progress of oviposition of H. axyridis in outdoor location in El Harrach region (central coastal Algeria) in autumn 2018. These life history parameters were related to the daily average temperatures under outdoor conditions. The average developmental time (egg to adult) was 40.3±1.6 days. The developmental times of individual larval instars showed increasing values expressed as ratio 1:1.42:2.95:3.63, The maximum daily fertility fluctuated between 19 and 21 eggs but ceased when mean daily temperatures dropped below 15°C.

Keywords

Supporting Institution

Faculty of Science and Technology of the University of Tissemsilt; Algerian Ministry of Higher Education and Scientific Research

Thanks

This study was supported by the Faculty of Science and Technology of the University of Tissemsilt to first author (Lakhal Mohamed Amin) as part of a short-term mobility program for advanced training abroad established by the Algerian Ministry of Higher Education and Scientific Research in accordance with the ministerial decree of December 25, 2011, amending the interministerial decree of May 17, 2004.

References

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Details

Primary Language

English

Subjects

Entomology , Entomology in Agriculture

Journal Section

Research Article

Publication Date

September 30, 2025

Submission Date

March 18, 2025

Acceptance Date

August 19, 2025

Published in Issue

Year 2025 Volume: 49 Number: 3

APA
Lakhal, M. A., Marniche, F., Doumandji, S., Oğuzoğlu, Ş., & Nedved, O. (2025). Distribution of the ladybird Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) in Algeria and life history parameters in outdoor rearing. Turkish Journal of Entomology, 49(3), 279-290. https://doi.org/10.16970/entoted.1660027