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Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
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There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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  1. Home
  3. Research Domains
  5. Environmental Sciences
  7. Ecological Applications
  9. Ecological Applications Not Elsewhere Classified
  11. A New Species Of Ontherus Erichson, 1847 (coleoptera: Scarabaeidae: Scarabaeinae: Coprini) And New Distributional Records Of Cryptocanthon Humidus Howden, 1973 (coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) For Ecuador.
  1. Home
  3. Research Domains
  5. Environmental Sciences
  7. Ecological Applications
  9. Ecological Applications Not Elsewhere Classified
  11. A New Species Of Ontherus Erichson, 1847 (coleoptera: Scarabaeidae: Scarabaeinae: Coprini) And New Distributional Records Of Cryptocanthon Humidus Howden, 1973 (coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) For Ecuador.

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Helminth Collection and Identification from Wildlife
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A new species of Ontherus Erichson, 1847 (Coleoptera: Scarabaeidae: Scarabaeinae: Coprini) and new distributional records of Cryptocanthon humidus Howden, 1973 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) for Ecuador.

William Chamorro1, Alejandro Lopera-Toro2, François Génier3

  • 1Universidad de la Amazonia; Research Group in Entomology; Entomology Laboratory; Florencia; Caquetá; Colombia. chamorrowilliam1978@gmail.com.

Zootaxa
|December 8, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

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A new species of Ontherus beetle was discovered in Ecuador. This study also updates identification keys and records a new species for the country.

Area of Science:

  • Entomology, specifically the study of Scarabaeidae beetles.
  • Biodiversity and taxonomy of Coleoptera in South America.

Background:

  • The genus Ontherus is part of the Scarabaeinae subfamily, known for dung beetle ecological roles.
  • Previous taxonomic work on Neotropical Scarabaeinae has established the diversity of the genus Ontherus.
  • The fauna of Ecuador, particularly Loja province, remains incompletely documented for many insect groups.

Purpose of the Study:

  • To describe a new species of Ontherus discovered in southern Ecuador.
  • To provide an updated identification key for all Ecuadorian species within the genus Ontherus.
  • To report the first occurrence of Cryptocanthon humidus in Ecuador.

Main Methods:

  • Morphological examination of collected specimens from Loja province.
  • Comparative analysis with existing Ontherus species descriptions and type specimens.
  • Literature review and specimen record verification for Cryptocanthon humidus.

    • Main Results:

    • A new species, Ontherus (subgenus Ontherus), is formally described from Loja province, Ecuador.
    • An updated dichotomous key facilitates the identification of Ecuadorian Ontherus species.
    • Cryptocanthon humidus is recorded for the first time in Ecuador, expanding its known distribution.

    Conclusions:

    • The discovery highlights the ongoing potential for new species descriptions within the Neotropical Scarabaeinae.
    • The updated key aids researchers and conservationists in studying Ecuadorian Ontherus diversity.
    • The presence of C. humidus suggests potential undocumented distributions of other Scarabaeinae species in Ecuador.