English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Two new endemic species of scarab beetles are described from Costa Rica,    Onthophagus   humboldti    sp. nov . and    Uroxys   bonplandi    sp. nov.    Onthophagus   humboldti    sp. nov.  is also the tenth brachypterous    Onthophagus    species to be described worldwide, representing also a case of extreme brachyptery in   Onthophagini  . Illustrations for both new species, as well as marking differences with closely related species are included. Maps showing the distribution of the new species, as well as the distribution of brachypterous and endemic scarab-beetle species for Costa Rica are presented and discussed. The Cordillera de Talamanca represents an area where   Scarabaeinae   (four genera) show very high known levels of brachypterism in Mesoamerica. A reconstruction of the montane environment in the Cordillera de Talamanca during the Last Glacial Maximum (~24 ka) is analyzed, in order to try to understand a possible historical biogeography model that might promote high levels of brachypterism in scarab-beetles. The present study supports previous proposals that brachyptery is correlated with stable environments associated with deeply incised valleys. Tropical mountain ranges are also identified as having more endemics than lowland rain forests, contradicting accepted wisdom. Lastly, a mitochondrial DNA analysis supports the existence of the    Onthophagus   dicranius    and the    O.   clypeatus    species-groups as two well-defined and closely related branches.

zookeys

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