Pauesia silanaTremblay, 1969 A Parasitoid of Cinara maghrebica-Aphid in Aleppo Pine Forests in Algeria Case Khenchela Province

Agronomy, Aggoun, Hayet; Agronomy, Laamari, Malik; Agronomy, Tahar-chaouche, Souad

doi:10.21608/eajbsa.2022.259859

Pauesia silanaTremblay, 1969 A Parasitoid of Cinara maghrebica-Aphid in Aleppo Pine Forests in Algeria Case Khenchela Province

Document Type : Original Article

Authors

¹ Faculty of Exact Sciences, Nature and Life Sciences, Department of Agricultural Sciences of University of Biskra, Algeria..

² Department of Agronomy, Faculty of Veterinary and Agronomy Science, University of Batna1, Algeria.

³ University Campus (CRSTRA) Biskra

10.21608/eajbsa.2022.259859

Abstract

Aphids are categorized as serious pests, causing different damages to plant species; they have a great number of known natural enemies as predators and parasitoids. Among parasitoids, all members of the Aphidiinae subfamily were considered the most important. Pauesiaspecies are restricted to Lachninae aphid hosts. In Algeria, there is a lack of formations of Pauesia species richness. This study conducted in the forest habitat of Khenchela province dominated by Aleppo pine aims to explore Pauesia diversity in this region. A total of 208 mummified Cinara maghrebica (Mimeur) aphid were collected on Pinus halepensis trees. Among them, 106 Pauesia silana have emerged in association with males of a second species (Pauesia sp) and two hyperparasitoid species Asaphes suspensis(Nees) and Asaphes sp. Pauesia silana Tremblay is reported for the first time in Khenchela province. This natural enemy was found only parasitizing the aphid Cinara maghrebica (Mimeur) feeding on Aleppo pine (Pinus halepensis). Pauesia silana is redescribed and illustrated.

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