On the North American Species of Dolichosoma Stephens and Psilothrix Küster (Coleoptera: Melyridae: Dasytinae: Dasytini)

Gimmel, Matthew L.; Mayor, Adriean J.

doi:10.1649/0010-065x-73.2.395

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…The subfamily is currently undergoing revision and reclassification (e.g. see [ 62 ]). Hence, several genera represented here will be either transferred to new or different tribes (e.g.…”

Section: Resultsmentioning

confidence: 99%

Evolutionary history of tyrosine-supplementing endosymbionts in pollen-feeding beetles

Wierz,

Gimmel,

Huthmacher

et al. 2024

The ISME Journal

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Many insects feeding on nutritionally challenging diets like plant sap, leaves, or wood engage in ancient associations with bacterial symbionts that supplement limiting nutrients or produce digestive or detoxifying enzymes. However, the distribution, function, and evolutionary dynamics of microbial symbionts in insects exploiting other plant tissues or relying on a predacious diet remain poorly understood. Here, we investigated the evolutionary history and function of the intracellular gamma-proteobacterial symbiont “Candidatus Dasytiphilus stammeri” in soft-winged flower beetles (Coleoptera, Melyridae, Dasytinae) that transition from saprophagy or carnivory to palynivory (pollen-feeding) between larval and adult stage. Reconstructing the distribution of the symbiont within the Dasytinae phylogeny unraveled not only a long-term coevolution, originating from a single acquisition event with subsequent host–symbiont codiversification, but also several independent symbiont losses. The analysis of 20 different symbiont genomes revealed that their genomes are severely eroded. However, the universally retained shikimate pathway indicates that the core metabolic contribution to their hosts is the provisioning of tyrosine for cuticle sclerotization and melanization. Despite the high degree of similarity in gene content and order across symbiont strains, the capacity to synthesize additional essential amino acids and vitamins and to recycle urea is retained in some but not all symbionts, suggesting ecological differences among host lineages. This report of tyrosine-provisioning symbionts in insects with saprophagous or carnivorous larvae and pollen-feeding adults expands our understanding of tyrosine supplementation as an important symbiont-provided benefit across a broad range of insects with diverse feeding ecologies.

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“…The subfamily is currently undergoing revision and reclassification (e.g. see [ 62 ]). Hence, several genera represented here will be either transferred to new or different tribes (e.g.…”

Section: Resultsmentioning

confidence: 99%

Evolutionary history of tyrosine-supplementing endosymbionts in pollen-feeding beetles

Wierz,

Gimmel,

Huthmacher

et al. 2024

The ISME Journal

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“…In this study, we will adhere to the conventional taxonomic classification of dasytid beetles as a separate family, Dasytidae ( Majer 1994 , Majer 2002 , Mayor 2007 , Bocakova et al 2012 , Constantin 2021 ), rather than considering them as a subfamily within Melyridae ( Gimmel and Mayor 2019 ). The specimens examined in this study are deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China (IZAS) and the Museum of Hebei University, Baoding, China (MHBU).…”

Section: Methodsmentioning

confidence: 99%

“…The genus Dolichosoma was proposed by Stephens (1830), with Lagria linearis Rossi, 1794 as the type species. It is currently classified in the tribe Dasytini of Dasytidae ( Mayor 2007 , Gimmel and Mayor 2019 ). The adults of Dolichosoma can be easily distinguished from other dasytid beetles by its extremely slender body.…”

Section: Introductionmentioning

confidence: 99%

“…The adults of Dolichosoma can be easily distinguished from other dasytid beetles by its extremely slender body. This genus has been divided into two subgenera, D. ( Dolichosoma ) Stephens, 1830 and D. ( Dolichomorphus ) Fiori, 1905 ( Constantin 2007 , Gimmel and Mayor 2019 , Liberti 2021 ), which are different as follows. In D. ( Dolichomorphus ) , the pronotum is nearly as long as wide or transverse; the elytra are densely covered with whitish pubescence and scattered with a few erected blackish setae on surface; and the ultimate maxillary palpomere is large (about 4.0 times longer and 1.5 times wider than the penultimate palpomere) and securiform in shape.…”

Section: Introductionmentioning

confidence: 99%

“…At present, there are one and three species included in the two subgenera, respectively ( Liberti 2021 ). Additionally, Dolichosoma is considered to be endemic to the Palearctic Region ( Gimmel and Mayor 2019 ), but D. indicum Pic, 1923 is located in India, which remains poorly known and is placed in incertae sedis at the moment ( Liberti 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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First record of the genus Dolichosoma Stephens (Coleoptera, Dasytidae) from China, with two newly-recorded species

Miao,

Liu,

Tong

et al. 2024

BDJ

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Dolichosoma Stephens, 1830 is small genus belonging to the tribe Dasytini of the family Dasytidae (Coleoptera, Cleroidea), with two subgenera and five species hitherto known. It is widespread in the Palearctic Region of Eurasia, but has never been reported from China until now. The genus Dolichosoma Stephens, 1830 is reported from China for the first time, with discoveries of two newly-recorded species, including D. (Dolichomorphus) femorale Morawitz, 1861 and D. (Dolichosoma) lineare (Rossi, 1794) from Xinjiang Autonomous Region. They are re-described in detail and illustrated with habitus, ultimate abdominal tergites and sternites and genitalia of both sexes, as well as tarsal claws of male. In addition, a macrohabitat photograph and a distribution map of the two species occurring in China are provided.

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Revision of the Soft-Winged Flower Beetles of the Genus Asydates Casey, 1895 (Coleoptera: Melyridae: Dasytinae: Listrini)

Mayor

Gimmel

2019

The Coleopterists Bulletin

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On the North American Species of Dolichosoma Stephens and Psilothrix Küster (Coleoptera: Melyridae: Dasytinae: Dasytini)

Cited by 6 publications

References 9 publications

Evolutionary history of tyrosine-supplementing endosymbionts in pollen-feeding beetles

Evolutionary history of tyrosine-supplementing endosymbionts in pollen-feeding beetles

First record of the genus Dolichosoma Stephens (Coleoptera, Dasytidae) from China, with two newly-recorded species

Revision of the Soft-Winged Flower Beetles of the Genus Asydates Casey, 1895 (Coleoptera: Melyridae: Dasytinae: Listrini)

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