Coarazuphium auleri sp. n. (Carabidae: Zuphiini), a new troglobitic ground-beetle in Central-Western Brazil

The last ice age considerably influenced distribution patterns of extant species of plants and animals, with some of them now inhabiting disjunct areas in the subarctic/arctic and alpine regions. This arctic-alpine distribution is characteristic for many cold-adapted species with a limited dispersal ability and can be found in many invertebrate taxa, including ground beetles. The ground beetle Pterostichus adstrictus Eschscholtz, 1823 of the subgenus Bothriopterus was previously known to have a holarctic-circumpolar distribution, in Europe reaching its southern borders in Wales and southern Scandinavia. Here, we report the first findings of this species from the Austrian Ötztal Alps, representing also the southernmost edge of its currently known distribution, confirmed by the comparison of morphological characters to other Bothriopterus species and DNA barcoding data. Molecular data revealed a separation of the Austrian and Finish specimens with limited to no gene flow at all. Furthermore, we present the first data on habitat preference and seasonality of P. adstrictus in the Austrian Alps.

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Nickel oxide nanoparticles induce genotoxicity and cellular alterations in the ground beetle Blaps polycresta (Coleoptera: Tenebrionidae)

Toxicology and Industrial Health ◽

10.1177/07482337211000988 ◽

2021 ◽

pp. 074823372110009

Author(s):

Dalia Abdel Moneim Kheirallah ◽

Awatef Mohamed Ali ◽

Salah Eldein Osman ◽

Amal Mohamed Shouman

Keyword(s):

Nickel Oxide ◽

Structural Changes ◽

Ground Beetle ◽

Biological Tissues ◽

Treated Group ◽

Sublethal Dose ◽

Oxide Nanoparticles ◽

Nickel Oxide Nanoparticles ◽

Nio Nps ◽

The Impact

Nickel nanoparticles (Ni-NPs) have advantageous applications in the industry; however, little is known of their adverse effects on biological tissues. In the present study, the ground beetle Blaps polycresta was employed as a sensitive indicator for nickel oxide nanoparticles (NiO-NPs) toxicity. Adult male beetles were injected with six dose levels of NiO-NPs (0.01, 0.02, 0.03, 0.04, 0.05, and 0.06 mg/g body weight). Mortality was reported daily over 30 days under laboratory conditions to establish an LD50. Nickel was detected in the testicular tissues of the beetles using X-ray analysis and transmission electronic microscopy. Beetles treated with the sublethal dose of 0.02 mg/g were selected to observe molecular, cellular, and subcellular changes. Gene transcripts of HSP70, HSP90, and MT1 were found to be increased >2.5-, 1.5-, and 2-fold, respectively, in the treated group compared with the controls. Decreased gene expression of AcPC01, AcPC02, and AcPC04 (≤1.5-, ≤2-, and < 2.5-fold, respectively, vs. controls) also were reported in the treated group. Under light microscopy, various structural changes were observed in the testicular tissues of the treated beetles. Ultrastructure observations using scanning and transmission electron microscopy showed severe damage to the subcellular organelles as well as deformities of the heads and flagella of the spermatozoa. Therefore, the present study postulated the impact of NiO-NPs in an ecological model.

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The role of large-scale descriptors and morphological status in shaping ground beetle (Carabidae) assemblages of floodplains in Germany

Ecological Indicators ◽

10.1016/j.ecolind.2019.03.042 ◽

2019 ◽

Vol 103 ◽

pp. 124-133 ◽

Cited By ~ 2

Author(s):

Hannah Jachertz ◽

Kathrin Januschke ◽

Daniel Hering

Keyword(s):

Large Scale ◽

Ground Beetle ◽

Morphological Status

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Body size and mean individual biomass variation of ground-beetles community (Coleoptera: Carabidae) as a response to increasing altitude and associated vegetation types in mountainous ecosystem

Biologia ◽

10.1515/biolog-2017-0114 ◽

2017 ◽

Vol 72 (9) ◽

Cited By ~ 1

Author(s):

Aleksandra Cvetkovska-Gjorgjievska ◽

Slavčo Hristovski ◽

Dana Prelić ◽

Lucija Šerić Jelaska ◽

Valentina Slavevska-Stamenković ◽

...

Keyword(s):

Body Size ◽

Altitudinal Gradient ◽

Vegetation Type ◽

Ground Beetle ◽

Vegetation Types ◽

Forest Stands ◽

Geologic History ◽

White Oak ◽

Mountain Ecosystems ◽

Individual Biomass

AbstractCarabid fauna is not sufficiently explored in Central and Western Balkan areas, especially in mountain ecosystems with unique biodiversity which is a result of specific environmental factors and geologic history. Furthermore, distribution of species and adaptation to varying environmental parameters change along the altitudinal gradients. All this highlights the need for biodiversity and ecological studies in order to assess the state of the mountain ecosystems and conservation significance. Carabids as good bioindicator group can be used as a tool for monitoring those changes. The aim of this study was to analyse the differences of body size distribution and mean individual biomass (MIB) of ground beetle assemblages as a response of changing conditions and vegetation types along an altitudinal gradient on Belasitsa Mountain in south Macedonia. Both parameters significantly decreased with increasing altitude and were consequently associated with the vegetation type. Larger bodied individuals and higher values of MIB were recorded in the white oak and oriental hornbeam forest stands with the values decreasing in sessile oak forests towards submontane and montane beech forest stands. This research yielded first list of carabid species inhabiting Belasitsa Mountain with insight of carabid body length and biomass distribution along altitudinal gradient.

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Mechanisms in the Shift of a Riparian Ground Beetle (Carabidae) Between Reproduction and Hibernation Habitat

Journal of Insect Behavior ◽

10.1007/s10905-006-9036-1 ◽

2006 ◽

Vol 19 (5) ◽

pp. 545-558 ◽

Cited By ~ 9

Author(s):

Johan Andersen

Keyword(s):

Ground Beetle

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A new melanistic variant of the caterpillar hunter Calosoma wilcoxi LeConte, 1848 from Texas, United States of America and a preliminary phylogeny of the genus Calosoma Weber, 1801 (Coleoptera: Carabidae)

The Canadian Entomologist ◽

10.4039/tce.2016.28 ◽

2016 ◽

Vol 149 (1) ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Jesse W. Ray ◽

Matthias Seidel ◽

Martin Husemann

Keyword(s):

United States ◽

United States Of America ◽

Phylogenetic Analyses ◽

Ground Beetle ◽

Abundant Species ◽

Cytochrome Oxidase Subunit ◽

New Variant ◽

Central Texas ◽

Coi Sequences ◽

Dark Blue

AbstractTwo aberrant ground beetle (Coleoptera: Carabidae) specimens from the genus Calosoma Weber, 1801 were collected in Waco, Texas, United States of America, in 2012–2013. The specimens, which are morphologically most similar to Calosoma wilcoxi LeConte, 1848, but are dark blue-black instead of the typical metallic green. We employed DNA barcoding and phylogenetic methods to confirm the identities of the aberrant specimens. Preliminary phylogenetic analyses of cytochrome oxidase subunit 1 (COI) sequences of central Texas and southwestern species place the aberrant specimens with 100% confidence as C. wilcoxi. The new variant of C. wilcoxi presumably occurs at low densities. Frequent collecting from 2011 to 2014 resulted in the discovery of only two of the aberrant coloured individuals among hundreds of typical green specimens. These specimens (to our knowledge) represent the first published record of melanistic Calosoma from North America. While the majority of North American species in the genus are naturally black, two of the most widely distributed and abundant species, C. scrutator (Fabricius, 1775) and C. wilcoxi, are typically green. We sequenced the aberrant form as well as all species co-occurring with the new colour morph at the collection locality and used records from GenBank and the Barcode of Life Data System to generate a preliminary phylogeny of the genus, which suggested that some of the currently established subgenera are likely not monophyletic.

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