On the immature stages of some Merodontini hoverflies (Diptera: Syrphidae) from Europe and Africa

Orengo-Green, José J.; Ricarte, Antonio; Hauser, Martin; Langlois, Dominique; Marcos-García, Mª Á.

doi:10.1016/j.asd.2023.101328

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…So, no information about the feeding regimes (i.e., phytophagous or saprophagous) of the species of the E. barbarus group is available. This lack of information in the early stages has manifested in many published studies (e.g., [56,57]). According to the IUCN Red List categories and criteria [58], E. barbarus and E. sulcitibius are not threatened with extinction, whereas E. gibbosus is evaluated as endangered [59] and E. schimideggeri is still pending assessment.…”

Section: Distribution and Conservationmentioning

confidence: 99%

Unveiling the Mainland vs. Insular Variability of the Eumerus barbarus Species Group (Diptera: Syrphidae) in the Western Mediterranean Basin

Aguado-Aranda,

Ricarte,

Nedeljković

et al. 2024

Insects

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Comprising nearly 300 described species, Eumerus Meigen, 1822, is one of the most speciose syrphid genera worldwide, and its taxonomic diversity is remarkable in the Mediterranean basin. The Eumerus barbarus (Coquebert, 1804) group consists of four species in the western Mediterranean. Although the phenotypic variability of this species group has been commented on in previous studies, it has never been contrasted with molecular data. In the present work, the morphological variation found in 300+ specimens of this species group from the western Mediterranean is explored and tested against the COI mitochondrial DNA (mtDNA). The highest phenotypic disparity was found in E. barbarus and Eumerus sulcitibius Rondani 1868. The integrative approach has not revealed cryptic diversity within the species E. barbarus but in E. sulcitibius. As a result, a new species close to E. sulcitibius was discovered, Eumerus sardus Aguado-Aranda, Ricarte & Hauser sp. n., from Sardinia, Italy. The new insular species is here described, illustrated, and discussed. A total of twenty-three haplotypes of COI mtDNA were identified amongst the analyzed Mediterranean specimens of E. barbarus, whereas two and five haplotypes were distinguished in the Iberian specimens of E. sulcitibius and Eumerus gibbosus van Steenis, Hauser & van Zuijen, 2017, respectively. Moreover, the first known barcodes of E. gibbosus and Eumerus schmideggeri van Steenis, Hauser & van Zuijen, 2017 were obtained, and the distribution ranges of all species are mapped. An updated dichotomous key to the males of the E. barbarus group from the western Mediterranean is provided.

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Section: Distribution and Conservationmentioning

confidence: 99%

Unveiling the Mainland vs. Insular Variability of the Eumerus barbarus Species Group (Diptera: Syrphidae) in the Western Mediterranean Basin

Aguado-Aranda,

Ricarte,

Nedeljković

et al. 2024

Insects

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A window on remarkable cryptic diversity of the Merodon planifacies subgroup (Diptera: Syrphidae) in the Afrotropical Region

Vujić,

Djan,

Radenković

et al. 2024

Journal of Insect Science

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The genus Merodon Meigen (Diptera: Syrphidae) is one of the most species-rich hoverfly genera distributed across the Palaearctic and Afrotropical regions. In the Palaearctic, the genus Merodon boasts 195 described species, while its Afrotropical region pales in comparison, with a mere 17 species documented thus far. As a result of 8 years of fieldwork conducted in the Republic of South Africa, in this paper, we present the description of 11 new species for science with a description of immature stages for 2 species, which increases the diversity of this genus in the Afrotropical region by remarkable 39%. These revelations are based on integrating morphology, molecular analysis (COI gene and 28S rRNA) and geometric morphometry. All described species belong to the Merodon planifacies subgroup, the Merodon desuturinus lineage and, within that, to the Afrotropical Merodon melanocerus group. Additionally, we provide an illustrated key to 15 species belonging to the subgroup, a detailed discussion on relevant taxonomic characters, a morphological diagnosis, a distribution map and clarification of the association between M. capi complex and host plants from the genus Merwilla.

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Morphology of the immature stages of the hoverfly Paragus (Paragus) hyalopteri Marcos-García & Rojo, 1994 (Diptera, Syrphidae), predator of the mealy plum aphid Hyalopterus pruni (Hemiptera, Aphididae)

Orengo-Green,

Ricarte,

Marcos-García

2024

Boln. Asoc. esp. Ent.

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The genus Paragus Latreille, 1804 with over 100 species of hoverflies (Diptera: Syrphidae) is widely distributed except for Antarctica. The larval biology of these hoverflies is well known since they develop in aphid colonies, which are often of economic importance. However, the immature stages of only 9 of the 27 known larvae of genus Paragus are described. Paragus (Paragus) hyalopteri Marcos-García & Rojo, 1994, is a Palaearctic species described from Spain. Its larva has only been found preying on the aphid Hyalopterus pruni (Geoffroy, 1762) (Hemiptera: Aphididae), on several species of fruit trees and on leaves of Arundo donax L., and Phragmites spp. Here for the first time the full life cycle of a Paragus hoverfly is described including egg, all three larval stages and the puparium. Eggs, larvae and pupae of P. hyalopteri were collected on leaves of Phragmites australis (Cav.) among aphid colonies of H. pruni, and their morphology analyzed and described in detail using stereomicroscope and Scanning Electron Microscope techniques. To facilitate the diagnosis of Paragus larvae, a key to all known larvae of Paragus is provided.

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On the immature stages of some Merodontini hoverflies (Diptera: Syrphidae) from Europe and Africa

Cited by 3 publications

References 32 publications

Unveiling the Mainland vs. Insular Variability of the Eumerus barbarus Species Group (Diptera: Syrphidae) in the Western Mediterranean Basin

Unveiling the Mainland vs. Insular Variability of the Eumerus barbarus Species Group (Diptera: Syrphidae) in the Western Mediterranean Basin

A window on remarkable cryptic diversity of the Merodon planifacies subgroup (Diptera: Syrphidae) in the Afrotropical Region

Morphology of the immature stages of the hoverfly Paragus (Paragus) hyalopteri Marcos-García & Rojo, 1994 (Diptera, Syrphidae), predator of the mealy plum aphid Hyalopterus pruni (Hemiptera, Aphididae)

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