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13 results for “Onymacris”
Data from: A multilocus perspective on phylogenetic relationships in the Namib darkling beetle genus Onymacris (Tenebrionidae)
Tenebrionid beetles, common constituent faunae of arid ecosystems worldwide, are particularly abundant in Africa's Namib and Kalahari deserts. Within this region, flightless, diurnal members of the tribe Adesmiini are among the more intensively studied of all desert beetles, especially with regard to ecology. Much of this research centers on Onymacris, a psammophilous genus largely endemic to the Namib. Here we present the first molecular phylogenetic analysis conducted for Onymacris, emphasizing relationships among other adesmiines. Our multilocus phylogeny identifies a strongly supported clade containing Onymacris and two other genera, Eustolopus and Physadesmia—an assemblage recovered in earlier morphological analyses. However, Onymacris is not monophyletic; rather, we demonstrate its paraphyly with respect to the genus Physadesmia, identified as the sister taxon to the white-bodied species of Onymacris. In turn, the Physadesmia-'white' Onymacris clade is the sister group to the remaining (black-bodied) Onymacris. Non-monophyly of 'black' versus 'white' Onymacris is corroborated by distribution patterns and nodal age estimates, which suggest separate origins in different dune systems.
Data from: A multilocus perspective on phylogenetic relationships in the Namib darkling beetle genus Onymacris (Tenebrionidae)
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Figure 4 from: Lamb T, Marais E, Bond JE (2017) A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement. ZooKeys 687: 63-72. https://doi.org/10.3897/zookeys.687.13660
Figure 4 - ML consensus topology of Onymacris, with bootstrap support indicated by black (> 95%), gray (> 90%), and white (> 70%) nodes. Inset at lower left is a ML tree showing branch lengths.
Figure 3 from: Lamb T, Marais E, Bond JE (2017) A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement. ZooKeys 687: 63-72. https://doi.org/10.3897/zookeys.687.13660
Figure 3 - Specimens of Onymacris brainei from the second locality, illustrating variation in degree of elytral striping.
Figure 1 from: Lamb T, Marais E, Bond JE (2017) A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement. ZooKeys 687: 63-72. https://doi.org/10.3897/zookeys.687.13660
Figure 1 - Color variation among members of the 'white' Onymacris clade, as represented by: (top row, left to right) Onymacris bicolor, O. marginipennis, O. candidipennis, and (bottom row, left to right) O. langi visseri, O. langi cornelii, and O. langi meridionalis.
Figure 2 from: Lamb T, Marais E, Bond JE (2017) A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement. ZooKeys 687: 63-72. https://doi.org/10.3897/zookeys.687.13660
Figure 2 - Map illustrating the type locality for Onymacris brainei (star), surveyed sites with appropriate habitat (white circles), and the second locality for O. brainei (red circle).
Figure 12 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figure 12 - Bayesian consensus tree showing relationships within Onymacris unguicularis. Bold branches subtend nodes with Bayesian posterior probabilities of 1.0; numbers below the branches are ML bootstrap values.
Figure 11 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figure 11 - Scatterplot of the principal component scores derived from geometric morphometric analysis of dorsal shape.
Figures 8-9 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figures 8-9 - Lateral aspects of the prosternal process depicting a blunt apex (8) in Onymacris unguicularis schulzeae and toothed apex (9) in Onymacris unguicularis unguicularis.
Figure 1 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figure 1 - Map illustrating the range and disjunct distribution of Onymacris unguicularis in the Namib Desert. Subspecies distributions are approximated by oval overlays; localities for genetic sampling, listed from south to north, are: 1 Luderitz 2 Gobabeb 3 Walvis Bay, and 4, 5 Torra Bay.
Figures 4-7 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figures 4-7 - Pronotum (4–5) and prosternum (6–7) of Onymacris unguicularis unguicularis (4, 6) and Onymacris unguicularis schulzeae (5, 7). Measurements for ratio calculations are marked on 5 and 7.
Figures 2-3 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figures 2-3 - Dorsal habitus of Onymacris unguicularis unguicularis (2) and Onymacris unguicularis schulzeae (3).
Figure 10 from: Lamb T, Pollard R, Bond J (2013) Genetic variation corroborates subspecific delimitation in the Namib fog-basking beetle, Onymacris unguicularis (Haag) (Tenebrionidae, Coleoptera). ZooKeys 353: 47-60. https://doi.org/10.3897/zookeys.353.6228
Figure 10 - Landmarks for the geometric morphometric analysis of dorsal (elytral) shape.
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