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https://doi.org/10.48027/hnb.46.112

New eurytomid parasitoids of bark beetles in pine plantations in Ihtimanska Sredna Gora Mountains, Bulgaria


Sevdalin Belilov https://orcid.org/0000-0003-2662-3129; Anelia Stojanova https://orcid.org/0000-0002-0842-1446; Georgi Georgiev https://orcid.org/0000-0001-5703-2597

1 November 2024 · volume 46 · (issue 11) · pp. 297–302 · PDF [full text]

Abstract: In 2020, five eurytomid species were found for first time on bark beetles in Pinus sylvestris plantations in Ihtimanska Sredna Gora Mountains in Bulgaria: Eurytoma afra Boheman, 1836, Eurytoma arctica Thomson, 1875, Eurytoma morio Boheman, 1836, Eurytoma sp.1 and Eurytoma sp.2. One of them, E. arctica is a new species for the Bulgarian fauna. The parasitoids were reared from stem and branch samples infested by Ips acuminatus, Pityogenes bistridentatus, Pityophthorus pityographus, Tomicus piniperda and T. minor. All host-parasitoid associations are new for Bulgaria. In parasitoid complex, the most abundant species was E. morio (75.9%), followed by E. arctica (13.8%), Eurytoma sp. (6.9%) and E. afra (3.4%). The parasitism of the hosts varied between 2.6% (E. afra on I. acuminatus, P. bistridentatus and P. pityographus) and 33.3% (E. morio on I. acuminatus).

Keywords: Bulgaria, Eurytomidae, new records, parasitoids, Pinus sylvestris, Scolytinae

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Belilov S., Stojanova A., Georgiev G. 2024 New eurytomid parasitoids of bark beetles in pine plantations in Ihtimanska Sredna Gora Mountains, Bulgaria. Historia naturalis bulgarica 46: 297–302.

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