Two Evaniosomini Species (Coleoptera: Tenebrionidae) Associated with Decaying Carcasses in Argentina, with Remarks on the Tribal Assignment of<i>Achanius</i>Erichson

Flores, Gustavo E.; Aballay, Fernando H.

doi:10.1649/0010-065x-69.mo4.167

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…This South American clade was already mentioned by Doyen (1993) as a group “not easy to fit with any classification” using morphology and the classification at tribe level of the different genera have seen several changes over time (see e.g. , Flores & Aballay, 2015 ). Doyen (1993) himself suggested transferring Achanius to the Edrotini ( =Eurymetopini Casey, 1907).…”

Section: Discussionmentioning

confidence: 90%

“…The sister clade of Caenocrypticoides diverges into one lineage with diverse taxa having a wide distribution in the Palaeartic and Africa, but are not present in South America (Erodiini, Tentyriini, Zophosini, Adesmiini) and a second lineage with South American taxa belonging to Edrotini, Epitragini, Evaniosomini, Thinobatini, and Trilobocarini. The current placement of genera within these tribes is based on morphological characters ( e.g., Doyen, 1993 ; Flores & Aballay, 2015 ). Although the exact position, particularly those of Arthroconus (Edrotini), Salax (Trilobocarini) and Achanius (Evaniosomini) could not be fully resolved with our data, it is obvious that none of the tribes is monophyletic.…”

Section: Discussionmentioning

confidence: 99%

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Phylogenomics of darkling beetles (Coleoptera: Tenebrionidae) from the Atacama Desert

Ragionieri

Zúñiga-Reinoso

Bläser

et al. 2023

PeerJ

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Background Tenebrionidae (Insecta: Coleoptera) are a conspicuous component of desert fauna worldwide. In these ecosystems, they are significantly responsible for nutrient cycling and show remarkable morphological and physiological adaptations. Nevertheless, Tenebrionidae colonizing individual deserts have repeatedly emerged from different lineages. The goal of our study was to gain insights into the phylogenetic relationships of the tenebrionid genera from the Atacama Desert and how these taxa are related to the globally distributed Tenebrionidae. Methods We used newly generated transcriptome data (47 tribes, 7 of 11 subfamilies) that allowed for a comprehensive phylogenomic analysis of the tenebrionid fauna of this hyperarid desert and fills a gap in our knowledge of the highly diversified Tenebrionidae. We examined two independent data sets known to be suitable for phylogenomic reconstructions. One is based on 35 neuropeptide precursors, the other on 1,742 orthologous genes shared among Coleoptera. Results The majority of Atacama genera are placed into three groups, two of which belong to typical South American lineages within the Pimeliinae. While the data support the monophyly of the Physogasterini, Nycteliini and Scotobiini, this does not hold for the Atacama genera of Edrotini, Epitragini, Evaniosomini, Praociini, Stenosini, Thinobatini, and Trilobocarini. A suggested very close relationship of Psammetichus with the Mediterranean Leptoderis also could not be confirmed. We also provide hints regarding the phylogenetic relationships of the Caenocrypticini, which occur both in South America and southern Africa. Apart from the focus on the Tenebrionidae from the Atacama Desert, we found a striking synapomorphy grouping Alleculinae, Blaptinae, Diaperinae, Stenochinae, and several taxa of Tenebrioninae, but not Tenebrio and Tribolium. This character, an insertion in the myosuppressin gene, defines a higher-level monophyletic group within the Tenebrionidae. Conclusion Transcriptome data allow a comprehensive phylogenomic analysis of the tenebrionid fauna of the Atacama Desert, which represents one of the seven major endemic tribal areas in the world for Tenebrionidae. Most Atacama genera could be placed in three lineages typical of South America; monophyly is not supported for several tribes based on molecular data, suggesting that a detailed systematic revision of several groups is necessary.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Phylogenomics of darkling beetles (Coleoptera: Tenebrionidae) from the Atacama Desert

Ragionieri

Zúñiga-Reinoso

Bläser

et al. 2023

PeerJ

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Species diversity of Tenebrionidae (Coleoptera) in mountaintops of extra-Andean volcanoes of Payunia (Argentina), with descriptions of two new species

Carrara

Cheli

Silvestro

et al. 2021

An. Acad. Bras. Ciênc.

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The north of Neuquén province shares with the south of Mendoza province the subprovince Payunia of the biogeographical province of Patagonic steppe, which is characterized by the presence of approximately 800 volcanoes. Although we have conducted several samplings in volcanoes of Mendoza in past years to recognize the biodiversity of tenebrionids, it is still pending which is the role that these mountains have in the biota of tenebrionids in Neuquén. In this work we reported the results of two consecutive years of prospection in two volcanoes separated by 120 km between each other, Tromen and Auca Mahuida which have 3978 and 2215 meters above sea level respectively. We found that Auca Mahuida harbours a total diversity of 10 tenebrionid species and Tromen 9, but these communities were signifi cantly different between them. From these prospections two new endemic species of Tenebrionidae are described: Scotobius aucamahuidensis Silvestro sp. nov. (Tenebrioninae: Scotobiini) from Auca Mahuida and Psectrascelis tromensis Flores sp. nov. (Pimeliinae: Nycteliini) from Tromen.Photographs for these two new species are included, with comparisons to other known species of these genera. Based on these results we discuss the role of different factors that infl uence tenebrionid diversity and their implications to conserve biodiversity.

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Environmental factors determining the diversity of darkling beetles (Coleoptera: Tenebrionidae) in arid, high-altitude environments in Northwestern Argentina

Macagno¹,

Cruz²,

Rodriguez-Artigas³

et al. 2023

An. Acad. Bras. Ciênc.

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Factors influencing the diversity of tenebrionid beetles in arid, high-altitude environments in the northwest of Argentina are little-known. Using pitfall traps and suction sampling in 30 sites, we collected these beetles in Altos Andes (AA) and Puna (PU) ecoregions and evaluated how local and regional factors influenced their assemblages. During each sampling date, we registered variables related to climate, vegetation, and soil in each sampling site. In total, we recorded 270 individuals from 21 species, richness of species was higher in PU than in AA, but without a statistically significant difference. Twelve species were present exclusively in PU, while two in AA.Tenebrionid assemblages in both ecoregions had different dominant species, in PU, Psectrascelis cariosicollis while Epipedonota interandina in AA. Beta diversity between ecoregions was moderate and we recorded a high beta diversity and high turnover of species in each ecoregion. The geographical distance between the sites influenced the similarity of the assemblages inside and between ecoregions, therefore, an increase in the geographical distance between sites determined a decrease in the similarity of the assemblages. The increase in elevation of the sampled sites did not produce significant changes in the abundance and richness of Tenebrionidae. There is no individual factor responsible for the darkling beetle communities structuration in these high-altitude environments. Different combinations of both local (soil and vegetation) and regional (climate and geographical distance) environmental factors together explain the ecoregional tenebrionid assemblages. We suggest including them among the focus groups in conservation studies to evaluate anthropogenic activities in this area.

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Two Evaniosomini Species (Coleoptera: Tenebrionidae) Associated with Decaying Carcasses in Argentina, with Remarks on the Tribal Assignment ofAchaniusErichson

Cited by 7 publications

References 9 publications

Phylogenomics of darkling beetles (Coleoptera: Tenebrionidae) from the Atacama Desert

Phylogenomics of darkling beetles (Coleoptera: Tenebrionidae) from the Atacama Desert

Species diversity of Tenebrionidae (Coleoptera) in mountaintops of extra-Andean volcanoes of Payunia (Argentina), with descriptions of two new species

Environmental factors determining the diversity of darkling beetles (Coleoptera: Tenebrionidae) in arid, high-altitude environments in Northwestern Argentina

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