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294 results for “Onthophagus”
FIGURE 4 in The Onthophagus fuscus (Coleoptera: Scarabaeidae) species complex: an update and the description of a new species
FIGURE 4. Onthophagus canescens female dorsal habitus, paratype.
FIGURE 9 in The Onthophagus fuscus (Coleoptera: Scarabaeidae) species complex: an update and the description of a new species
FIGURE 9. Onthophagus parafuscus male dorsal habitus, holotype.
FIGURE 5 in The Onthophagus fuscus (Coleoptera: Scarabaeidae) species complex: an update and the description of a new species
FIGURE 5. Onthophagus mycetorum male dorsal habitus, holotype.
FIGURE 7 in The Onthophagus fuscus (Coleoptera: Scarabaeidae) species complex: an update and the description of a new species
FIGURE 7. Onthophagus pseudofuscus male dorsal habitus, paratype.
FIGURE 2 in The Onthophagus fuscus (Coleoptera: Scarabaeidae) species complex: an update and the description of a new species
FIGURE 2. Onthophagus fuscus female dorsal habitus.
Figure 9 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 9 A cytochrome c-oxidase I (COI–5P) mitochondrial DNA sequence-based BOLD taxon ID tree of the nearest species of O. humboldti sp. nov.
Figure 3 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 3 Aedeagui of aO. humboldti sp. nov. bU. bonplandi sp. nov. c brachypterous wing of O. humboldti sp. nov.
Figure 8 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 8 Map showing Costa Rican scarabaeine endemic numbers as distributed by life-zones (taken from Kohlmann et al. 2007).
Figure 7 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 7 Present day distribution of Onthophagus humboldti sp. nov. (blue dot) and O. micropterus (red dot) and lines indicating proposed localities (rhombi) depressed by 1500 m (14 km in straight line) generated by the last glacial maximum, ~25–23 ka, in the Cordillera de Talamanca. All mountain systems are 150 m lower than present day height and an estimated sea level descent of 120 m is depicted. Dotted black lines represent present-day sea levels.
Figure 5 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 5 Known distribution of O. humboldti sp. nov. (orange circle) and U. bonplandi sp. nov. (red triangle). The distribution of the proposed sister species of these new taxa is also depicted, O. micropterus (blue rhombus) and U. dybasi (black square).
Figure 2 from: Kohlmann B, Solís Á, Alvarado G (2019) Description of Onthophagus humboldti and Uroxys bonplandi, two new scarab beetles (Coleoptera, Scarabaeidae, Scarabaeinae) from Costa Rica, with notes on tropical mountain brachyptery and endemicity. ZooKeys 881: 23-51. https://doi.org/10.3897/zookeys.881.38026
Figure 2 Drawings of the clypeal horn of aO. humboldti sp. nov. and bO. micropterus; pronotum of cO. humboldti sp. nov. and dO. micropterus; head of eO. humboldti sp. nov. and fO. micropterus; and elytral apex of gU. bonplandi sp. nov. and hU. dybasi. Scale bars: 1 mm.
Figures 21–24 in A Revision of the Onthophagus pexatus Species-group, with Description of a New Brachypterous Species (Coleoptera: Scarabaeidae: Scarabaeinae)
Figures 21–24. Onthophagus species, head, male (left), and female (right), fresh specimens. (21, 22) O. pexatus Harold; (23, 24) O. squalidus Lea.
Figures 37–41 in A Revision of the Onthophagus pexatus Species-group, with Description of a New Brachypterous Species (Coleoptera: Scarabaeidae: Scarabaeinae)
Figures 37–41. Onthophagus species, pygidium. (37) O. bulga sp. nov.; (38) O. longipes Paulian; (39) O. nammuldi Matthews; (40) O. pexatus Harold; (41) O. squalidus Lea.
Figures 13–16 in A Revision of the Onthophagus pexatus Species-group, with Description of a New Brachypterous Species (Coleoptera: Scarabaeidae: Scarabaeinae)
Figures 13–16. Onthophagus bulga sp. nov., head, male (left) and female (right). (13, 14) fresh specimens; (15, 16) worn specimens.
Figures 25–29 in A Revision of the Onthophagus pexatus Species-group, with Description of a New Brachypterous Species (Coleoptera: Scarabaeidae: Scarabaeinae)
Figures 25–29. Onthophagus species, venter of right metafemur. (25) O. bulga sp. nov.; (26) O. longipes Paulian; (27) O. nammuldi Matthews; (28) O. pexatus Harold; (29) O. squalidus Lea.
Fig. 2 in New Distribution and Feeding Records for Onthophagus durangoensis Balthasar, 1939 (Coleoptera: Scarabaeidae: Scarabaeinae: Onthophagini)
Fig. 2. Onthophagus durangoensis exploiting dog excrement in an urban environment.
Linked collectors and determiners for: Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae).
Natural history specimen data linked to collectors and determiners held within, "Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/030203e2-e6a1-4b59-bfa0-0689bf817b08">https://bionomia.net/dataset/030203e2-e6a1-4b59-bfa0-0689bf817b08</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/030203e2-e6a1-4b59-bfa0-0689bf817b08">https://gbif.org/dataset/030203e2-e6a1-4b59-bfa0-0689bf817b08</a>. Formatted as a Frictionless Data package.
Don't stand so close to me: microbiota-facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles.
<p>Microbial symbionts can influence their hosts in stunningly diverse ways. Emerging research suggests that an underappreciated facet of these relationships is the influence microbes can have on their host's responses to novel, or stressful, environmental conditions. We sought to address these and related questions in populations resulting from the recent introduction and subsequent rapid range expansion of <i>Onthophagus taurus</i> dung beetles. Specifically, we manipulated both microbial communities and rearing temperature to detect signatures of developmental and life history differentiation in response to the local thermal conditions in two populations derived from the southern-most (Florida) and northern-most (Michigan) extremes of the exotic Eastern U.S. range of <i>O. taurus</i>. We then sought to determine the contributions, if any, of host-associated microbiota to this differentiation. We found that when reared under common garden conditions individuals from Florida and Michigan populations differed significantly in developmental performance measures and life history traits, consistent with population divergence. At the same time, and contrary to our predictions, we failed to find support for the hypothesis that animals perform better if reared at temperatures that match their location of origin, and that performance differences may be mediated by host-associated microbiota. Instead, we found that microbiome swapping across host populations improved developmental performance in both populations, consistent with enemy release dynamics. We discuss the implications of our results for our understanding of the rapid spread of exotic <i>O. taurus </i>through the Eastern US, and the significance of symbiosis in host responses to novel environmental conditions more broadly.</p>
Fig. 1 in A New Species of American Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) Associated with Rodent (Geomyidae) Burrows
Fig. 1. Geographic distribution of the species of Onthophagus that form the hippopotamus complex.
Fig. 1 in First Precise Locality Data for Onthophagus atriglabrus Howden and Gill and New State Record for Onthophagus anewtoni Howden and Génier (Coleoptera: Scarabaeidae: Scarabaeinae) in Mexico
Fig. 1. Dorsal habitus of a) Onthophagus atriglabrus and b) Onthophagus anewtoni.
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