Holarctic sawflies (Hymenoptera : Symphyta)

Benson, Robert B.

doi:10.5962/bhl.part.5879

Cited by 32 publications

(64 citation statements)

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“…Benson 1958;Zhelochovtsev andZinovjev 1988, Haris 2006b) because the differences between the species (if there are any) are too small to be easily applied. Shape of the posterior margin of sternum 9 can be quite misleading.…”

Section: Unreliable Charactersmentioning

confidence: 99%

“…About half of these (120) are known in the West Palaearctic. The main keys available for the majority of West Palaearctic species are those of Benson (1958) and Zhelochovtsev and Zinovjev (1988). Benson's (1958) key is outdated and geographically restricted (British Isles).…”

Section: Introductionmentioning

confidence: 99%

“…The main keys available for the majority of West Palaearctic species are those of Benson (1958) and Zhelochovtsev and Zinovjev (1988). Benson's (1958) key is outdated and geographically restricted (British Isles). The key by Zhelochovtsev and Zinovjev (1988) includes more species because of wider geographic scope and new species described since Benson (1958).…”

Section: Introductionmentioning

confidence: 99%

“…Benson's (1958) key is outdated and geographically restricted (British Isles). The key by Zhelochovtsev and Zinovjev (1988) includes more species because of wider geographic scope and new species described since Benson (1958). The most comprehensive key for Pristiphora in terms of number of species and geographic scope (Palaearctic) was published by Haris (2006b), but it is mostly based on previous keys and species descriptions.…”

Section: Introductionmentioning

confidence: 99%

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North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae)

Prous¹,

Kramp²,

Vikberg³

et al. 2017

JHR

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North-Western Palaearctic species of Pristiphora Latreille, 1810 are revised. Altogether, 90 species are treated, two of which are described as new: P. caraganae Vikberg & Prous, sp. n. from Finland and P. dedeara Liston & Prous, sp. n. from Germany. Host plant of P. caraganae is Caragana arborescens Lam. Pristiphora dasiphorae (Zinovjev, 1993) (Haris, 2001) comb. n. Lectotypes are designated for 43 taxa. An illustrated electronic key made with Lucid and a traditional dichotomous key are provided to facilitate identification of the species. Species belonging to the carinata (previously Lygaeotus), micronematica (previously Lygaeophora), and rufipes (also known as thalictri or aquilegiae) groups are not keyed to the species level, because additional research is needed to delimit the species more reliably in these groups. Phylogeny of Pristiphora is reconstructed based on one mitochondrial (COI) and two nuclear (NaK and TPI) genes. Remarkably, around 50-60% (depending on the exclusion or inclusion of the carinata, micronematica, and rufipes groups) of the species cannot be reliably identified based on COI barcodes. Limited data from nuclear genes indicate a better identification potential (about 20% remain problematic).

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Section: Unreliable Charactersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae)

Prous¹,

Kramp²,

Vikberg³

et al. 2017

JHR

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“…We identified 14 VCGs demonstrating higher than expected diversity in an invaded area, even higher than in the putative native range in Northern Europe [20]. This diversity could reflect more than one introduction of the fungus into ENA, including the possibility of introduction prior to the S. noctilio invasion, together with S. juvencus [21]. The high amount of VCG diversity could also be influenced by sexual reproduction of the fungus in ENA.…”

Section: Discussionmentioning

confidence: 95%

Lack of fidelity revealed in an insect–fungal mutualism after invasion

et al. 2013

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Symbiont fidelity is an important mechanism in the evolution and stability of mutualisms. Strict fidelity has been assumed for the obligate mutualism between Sirex woodwasps and their mutualistic Amylostereum fungi. This assumption has been challenged in North America where the European woodwasp, Sirex noctilio, and its fungal mutualist, Amylostereum areolatum, have recently been introduced. We investigate the specificity of the mutualism between Sirex and Amylostereum species in Canada, where S. noctilio co-infests Pinus with native Sirex nigricornis and its mutualist, Amylostereum chailletii. Using phylogenetic and culture methods, we show that extensive, reciprocal exchange of fungal species and strains is occurring, with 75.3 per cent of S. nigricornis carrying A. areolatum and 3.5 per cent of S. noctilio carrying A. chailletii. These findings show that the apparent specificity of the mutualism between Sirex spp. and their associated Amylostereum spp. is not the result of specific biological mechanisms that maintain symbiont fidelity. Rather, partner switching may be common when shifting geographical distributions driven by ecological or anthropogenic forces bring host and mutualist pairs into sympatry. Such novel associations have potentially profound consequences for fitness and virulence. Symbiont sharing, if it occurs commonly, may represent an important but overlooked mechanism of community change linked to biological invasions.

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Insect Biodiversity in the Nearctic Region

Danks

Smith

2017

Insect Biodiversity

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Holarctic sawflies (Hymenoptera : Symphyta)

Cited by 32 publications

References 0 publications

North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae)

North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae)

Lack of fidelity revealed in an insect–fungal mutualism after invasion

Insect Biodiversity in the Nearctic Region

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