Parasitoids of Monochamus galloprovincialis (Coleoptera, Cerambycidae), vector of the pine wood nematode, with identification key for the Palaearctic region

Ricardo Petersen-Silva,Edmundo Sousa,Pedro Naves,Sergey Belokobylskij,Juli Pujade-Villar

doi:10.3897/zookeys.251.3986

Ricardo Petersen-Silva, Edmundo Sousa + Show 3 more

Open Access

https://doi.org/10.3897/zookeys.251.3986

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Journal: ZooKeys	Publication Date: Dec 18, 2012
Citations: 12	License type: CC BY 3.0

Affiliation: Polish Academy of Sciences, University of Barcelona

Abstract

The parasitoid complex associated with Monochamus galloprovincialis (Olivier), vector of the pine wood nematode, is discussed. Four species of the family Braconidae and one Ichneumonidae were found associated with Monochamus galloprovincialis in Portugal, namely Atanycolus denigrator (Linnaeus), Atanycolus ivanowi (Kokujev), Cyanopterus flavator (Fabricius), Doryctes striatellus (Nees) (Braconidae), and Xorides depressus (Holmgren) (Ichneumonidae). Atanycolus ivanowi, Atanycolus denigrator, Doryctes striatellus and Xorides depressus are new species for Portugal fauna, and Monochamus galloprovincialis is recorded as a new host of Xorides depressus. A key for determination of the ichneumonoid parasitoids of the pine sawyer is provided for the Palaearctic fauna.

Highlights

Worldwide, beetles of the genus Monochamus Dejean (1821) (Coleoptera; Cerambycidae) are the most important vectors of the pine wood nematode Bursaphelenchus xylophilus (Steiner and Buhrer 1934) (Nematoda, Tylenchida, Aphelenchoididae) (Linit 1988, 1990, Kishi 1995)
In this paper we report on the diversity of parasitoids associated with M. galloprovincialis in Portugal, their frequency and revise all previous information on ichneumonoids parasitoids of M. galloprovincialis in the Palaearctic Region, resulting in a key for their identification
Besides M. galloprovincialis, the following insects emerged from the wood and logs: Arhopalus sp. (Coleoptera: Cerambycidae), Orthotomicus erosus (Wollaston 1857) (Coleoptera: Scolytidae), Thanasimus formicarius (Linnaeus 1758) (Coleoptera: Cleridae), Sirex noctilio Fabricius (1793) (Hymenoptera: Siricidae), and some species of the family Anobiidae

Summary

Introduction

Beetles of the genus Monochamus Dejean (1821) (Coleoptera; Cerambycidae) are the most important vectors of the pine wood nematode Bursaphelenchus xylophilus (Steiner and Buhrer 1934) (Nematoda, Tylenchida, Aphelenchoididae) (Linit 1988, 1990, Kishi 1995). In the rest of Europe there is an absence of detailed studies on its biology, with the exception of the classic paper of Hellrigl (1971)

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