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151 results for “Trechus”
Figs 21–24. Trechus spp., elytra. 21. T in Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini)
Figs 21–24. Trechus spp., elytra. 21. T. rira sp. nov., holotype. 22. T. iridescens sp. nov., holotype. 23. T. oppositus sp. nov., paratype, ³. 24. T. bombi sp. nov., holotype. The arrows point to the insertions of the discal setae and the preapical seta.
Figs 25–28. Trechus spp., habitus. 25. T in Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini)
Figs 25–28. Trechus spp., habitus. 25. T. dodola sp. nov., holotype. 26. T. adaba sp. nov., paratype, ³. 27. T. harryi sp. nov., paratype, ³. 28. T. harenna sp. nov., paratype, ³.
Figs 57–60 in Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini)
Figs 57–60. Trechus oromiensis Magrini, Quéinnec & Vigna Taglianti, 2012, habitus (57) and head, pronotum (58–60). 57–58. ³ from Mt Chillalo. 59. ³ from Mt Enkuolo. 60. ³ from Goba, Bale Mts, locus typicus of T. oromiensis.
Data from: Trechus (Coleoptera: Carabidae) of Appalachia: A phylogenetic insight into the history of high elevation leaf litter communities
<p>Elevation gradients provide a wealth of habitats for a wide variety of organisms. The southern Appalachian Mountains in eastern United States are known for their high biodiversity and rates of endemism in arthropods, including in high-elevation leaf-litter taxa that are often found nowhere else on earth. Trechus Clairville (Coleoptera: Carabidae) is a genus of litter inhabitants with a near-global distribution and over 50 Appalachian species. These span two subgenera, Trechus s. str. and Microtrechus Jeannel, largely restricted to north and south of the Asheville basin, respectively. Understanding the diversification of these 3–5 mm flightless beetles through geological time can provide insights into how the litter-arthropod community has responded to historical environments, and how they may react to current and future climate change. We identified beetles morphologically and sequenced six genes to reconstruct a phylogeny of the Appalachian Trechus. We confirmed the Asheville Basin as a biogeographical barrier with a split between the north and south occurring towards the end of the Pliocene. Finer scale biogeography, including mountain-range occupancy, was not a reliable indication of relatedness, with group ranges overlapping and many instances of species-, species group-, and subgeneric sympatry. This may be because of the recent divergence between modern species and species groups. Extensive taxonomic revision of the group is required for Trechus to be useful as a bioindicator, but their high population density and speciose nature make them worth additional time and resources.</p>
Figs 33–36. Trechus spp., elytra. 33. T in Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini)
Figs 33–36. Trechus spp., elytra. 33. T. dodola sp. nov., holotype. 34. T. adaba sp. nov., paratype, ³. 35. T. harryi sp. nov., paratype, ³. 36. T. bayedika sp. nov., paratype, ³. The arrows point to the insertions of the discal setae and the preapical seta.
Linked collectors and determiners for: New species of the genus Trechus Clairville, 1806 from the Chinese Tien Shan (Coleoptera: Carabidae).
Natural history specimen data linked to collectors and determiners held within, "New species of the genus Trechus Clairville, 1806 from the Chinese Tien Shan (Coleoptera: Carabidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/8b3957bc-d1bb-4d32-a0fe-761ff31060ed">https://bionomia.net/dataset/8b3957bc-d1bb-4d32-a0fe-761ff31060ed</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/8b3957bc-d1bb-4d32-a0fe-761ff31060ed">https://gbif.org/dataset/8b3957bc-d1bb-4d32-a0fe-761ff31060ed</a>. Formatted as a Frictionless Data package.
Figure 11 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 11. Trechus beltrani (holotype), aedeagus. (a) Median lobe in left lateral view; (b) median lobe in right lateral view; (c) median lobe in dorsal view; (d) median lobe in ventral view; (e) left paramere; (f) right paramere. Scale bar: 0.3 mm.
Figure 8 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 8. (a) Trechus torressalai n. sp., detail of head in lateral view; (b) Trechus martinezi, detail of ocular region in lateral view; (c) Trechus alicantinus, detail of ocular region in lateral view; (d) Trechus beltrani, detail of ocular region in lateral view. Scale bar: 0.5 mm.
Figure 5. Trechus torressalai n in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 5. Trechus torressalai n. sp., right external genitalia (5genital shield). Scale bar: 0.1 mm.
Figure 3. Trechus torressalai n in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 3. Trechus torressalai n. sp., aedeagus. (a) Median lobe in left lateral view; (b) median lobe in right lateral view; (c) median lobe in dorsal view; (d) median lobe in ventral view; (e) left paramere; (f) right paramere. Scale bar: 0.3 mm.
Figure 10 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 10. Trechus alicantinus, aedeagus. (a) Median lobe in left lateral view; (b) median lobe in right lateral view; (c) median lobe in dorsal view; (d) median lobe in ventral view; (e) left paramere; (f) right paramere. Scale bar: 0.3 mm.
Figure 4. Trechus torressalai n in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 4. Trechus torressalai n. sp., female genitalia (external and internal genitalia). Scale bar: 0.4 mm.
Figure 13 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 13. Map of the Trechus martinezi-lineage species distribution: Trechus martinezi (square); Trechus alicantinus (triangle); Trechus beltrani (circle); Trechus torressalai n. sp. (star).
Figure 7 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 7. Detail of head in dorsal view. (a) Trechus martinezi; (b) Trechus torressalai n. sp.; (c) Trechus alicantinus; (d) Trechus beltrani. Scale bar: 0.5 mm.
Figure 12 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 12. Detail of elytral striae. (a) Trechus torressalai n. sp.; (b) Trechus martinezi. Scale bar: 0.1 mm.
Figure 9 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 9. Trechus martinezi, aedeagus. (a) Median lobe in left lateral view; (b) median lobe in right lateral view; (c) median lobe in dorsal view; (d) median lobe in ventral view; (e) left paramere; (f) right paramere. Scale bar: 0.3 mm.
Abb. 1 in Bemerkungen zu einigen alpinen Trechus-Arten (Coleoptera: Carabidae) der Schweiz A S
Abb. 1. Steile Nordflanke unter dem Tomlishorn im Pilatusmassiv (NW). In den besonders felsigen Berei- chen, die nur spärlich mit Vegetation bewachsen sind, lebt Trechus schyberosiae Szallies & Schüle, 2011. (Foto A. Szallies 2012)
Abb. 2 in Bemerkungen zu einigen alpinen Trechus-Arten (Coleoptera: Carabidae) der Schweiz A S
Abb. 2. Steile Abbrüche auf der Nordseite des Generoso-Massivs, hier dargestellt der Baraghetto (links). Trechus laevipes Jeannel, 1927 lebt in den felsigen Bereichen, bis hinunter auf 1 450 m ü. M. (Foto A. Szallies 2012)
Data from: Trechus (Coleoptera: Carabidae) of Appalachia: A phylogenetic insight into the history of high elevation leaf litter communities
Open the record for dataset details and reuse information.
Figure 1 in Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi-lineage (Coleoptera: Adephaga: Carabidae)
Figure 1. Habitus of Trechus torressalai n. sp. Scale bar: 1 mm.
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