New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species

Olszewski, Piotr; Ljubomirov, Toshko; Wiśniowski, Bogdan; Kowalczyk, J.; Krzyżyński, Maciej

doi:10.11646/zootaxa.4061.2.6

Cited by 5 publications

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“…Using morphological characters and keys to European species of Diodontus (Dollfuss et al 2001;Olszewski et al 2016), the females of the two species, described here as new, would be misidentified as D. minutus due to similar colouration and the distance between lateral teeth of clypeal apex being approximately equal to the distance between the lateral tooth and the eye. Males of both new species would be misidentified as D. insidiosus due to similar colouration and nearly straight, narrow mesobasitarsus.…”

Section: Discussionmentioning

confidence: 99%

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Two new species ofDiodontus(Hymenoptera: Pemphredonidae) from the western Mediterranean and their phylogenetic relationships

et al. 2019

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Two new species of Diodontus Curtis, 1834 (Hymenoptera: Pemphredonidae) are described. Diodontus polytylus Budrys new species is widespread in North Africa, from Libya and Chad to Morocco, as well as in southern Spain and Portugal. Diodontus guichardi Budrys new species was found in several localities in Morocco. The new species have small differences in their morphology; however, they can be easily separated using molecular characters. Comparison of 17 molecular markers has revealed that the highest evolutionary divergence is observed in mitochondrial gene ND6 and internal transcribed spacer ITS2. The variable regions of the nuclear rDNA genes 18S and 28S demonstrated the lowest evolutionary divergence; thus they were of the least use for species identification. The most coherent reconstruction of phylogeny, in comparison to other groups of markers, was obtained using exons of nuclear protein-coding genes. A provisional key to the species of D. minutus (Fabricius, 1793) species group of the Mediterranean Region is presented.

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Section: Discussionmentioning

confidence: 99%

“…Recent revisions of the European representatives of Diodontus (Dollfuss et al 2001;Olszewski et al 2016) do not include species described from North Africa and western Asia, therefore, the status of multiple Mediterranean species is not completely clear. An identification key for Diodontus from this region is not available.…”

Section: Introductionmentioning

confidence: 99%

Two new species ofDiodontus(Hymenoptera: Pemphredonidae) from the western Mediterranean and their phylogenetic relationships

et al. 2019

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“…At present, a total of 12 accepted species of the genus Diodontus are known in continental Europe [19,27,28]. However, a preliminary analysis of barcoding sequences available from the Barcode of Life Data System (BOLD) has revealed that the Mediterranean complex of species related to D. insidiosus Spooner, 1938, is represented by multiple divergent and geographically restricted mitotypes forming separate Barcode Index Numbers (BINs), which may correspond to undescribed cryptic species [28].…”

Section: Introductionmentioning

confidence: 99%

Ecological Speciation without Morphological Differentiation? A New Cryptic Species of Diodontus Curtis (Hymenoptera, Pemphredonidae) from the Centre of Europe

Budrys,

Orlovskytė,

Budrienė

2024

Insects

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Upon exploring the mitotype diversity of the aphid-hunting wasp, Diodontus tristis, we revealed specimens with highly divergent mitotypes from two localities in Lithuania and nesting in clayey substrate, while the specimens with typical mitotypes were found nesting in sandy sites. The comparison of inter- and intra-specific distances and application of delimitation algorithms supported the species status of the clay-nesting populations. Using a set of DNA markers that included complete or partial sequences of six mitochondrial genes, three markers of ribosomal operon, two homeobox genes, and four other nuclear genes, we clarified the phylogenetic relationships of the new cryptic species. The endosymbiotic bacteria infestation was checked, considering the option that the divergent populations may represent clades isolated by Wolbachia infection; however, it did not demonstrate any specificity. We found only subtle morphological differences in the new clay-nesting species, D. argillicola sp. nov.; the discriminant analysis of morphometric measurements did not reliably segregate it as well. Thus, we provide the molecular characters of the cryptic species, which allow confident identification, its phylogenetic position within the genus, and an updated identification key for the D. tristis species group.

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Taxonomic study of the subtribe Pemphredonina Dahlbom, 1835 (Hymenoptera: Crabronidae) with a new species and six new records from China

Bashir

Yue

Jiang

et al. 2021

Journal of Asia-Pacific Entomology

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New records of the genus Diodontus Curtis, 1834 (Hymenoptera: Crabronidae) from Bulgaria, Montenegro and Poland, with a key to Central and Eastern European species

Abstract: First records of Diodontus medius Dahlbom, 1844 and D. insidiosus Spooner, 1938 from Poland, and of D. handlirschi Kohl, 1888 from Bulgaria and Montenegro are provided. An illustrated key for the identification of Central and Eastern European species of the genus Diodontus is given.

Cited by 5 publications

References 0 publications

Two new species ofDiodontus(Hymenoptera: Pemphredonidae) from the western Mediterranean and their phylogenetic relationships

Two new species ofDiodontus(Hymenoptera: Pemphredonidae) from the western Mediterranean and their phylogenetic relationships

Ecological Speciation without Morphological Differentiation? A New Cryptic Species of Diodontus Curtis (Hymenoptera, Pemphredonidae) from the Centre of Europe

Taxonomic study of the subtribe Pemphredonina Dahlbom, 1835 (Hymenoptera: Crabronidae) with a new species and six new records from China

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