Ocypus (Ocypus) olens (O. Müller, 1764)

online; cit. 2025-11-11, Available from URL: http://www.hmyzfoto.cz/gstaph.ocy.html#ocy

Ocypus (Ocypus) ophthalmicus ophthalmicus (Scopoli, 1763)

online; cit. 2025-11-11, Available from URL: http://www.hmyzfoto.cz/gstaph.ocy.html#ocy

Odonteus armiger (Scopoli, 1772) - představujeme

online; cit. 2025-12-09, Available from URL: https://www.zin.ru/Animalia/Coleoptera/rus/odoarmsu.htm

Oiceoptoma thoracicum (Linnaeus, 1758)

online; cit. 2025-11-11, Available from URL: https://www.digitib.de/de/tiere-kennenlernen/artenlexikon/art/arthropoda-gliederfuesser/insecta/coleoptera/oiceoptoma/thoracicum-720/

Olophrum piceum (Gyllenhal, 1810)

online; cit. 2025-11-11, Available from URL: https://www.kaefer-der-welt.de/olophrum_piceum.htm

Year: 2018

Omophron (Omophron) limbatum (Fabricius, 1777) (hlavní)

online; cit. 2025-02-19, Available from URL: https://www.flickr.com/photos/svatoslav_vrabec/25348495427

Year: 2018

Omophron (Omophron) limbatum (Fabricius, 1777) (hlavní, detail)

online; cit. 2025-02-19, Available from URL: https://www.biolib.cz/IMG/GAL/BIG/295258.jpg

Year: 2016

Omophron (Omophron) limbatum (Fabricius, 1777) (vedlejší)

online; cit. 2025-02-19, Available from URL: https://itoldya420.getarchive.net/amp/media/omophron-limbatum-larvae-e2bf0c

Year: 1908

Omorgus suberosus (Fabricius, 1775) - atlas

online; cit. 2025-12-09, Available from URL: https://bugguide.net/node/view/1910006

Year: 2020

Onthophagus (Onthophagus) taurus (Schreber, 1759) - představujeme

online; cit. 2025-12-09, Available from URL: https://www.kaefer-der-welt.de/onthophagus_taurus.htm

Year: 2024

Onthophagus (Palaeonthophagus) coenobita (Herbst, 1783) - představujeme

online; cit. 2025-12-09, Available from URL: https://cassidae.uni.wroc.pl/Colpolon/onthophagus%20coenobita.htm

Onthophagus (Palaeonthophagus) joannae (Goljan, 1953) - představujeme

online; cit. 2025-12-09, Available from URL: https://www.flickr.com/photos/184491105@N03/54042783782

Year: 2024

Onthophagus (Palaeonthophagus) ovatus (Linnaeus, 1767) - představujeme

online; cit. 2025-12-09, Available from URL: https://www.flickr.com/photos/109379666@N08/12755600915

Year: 2014

Onthophagus (Palaeonthophagus) vacca (Linnaeus, 1767) - představujeme

online; cit. 2025-12-09, Available from URL: https://www.zin.ru/Animalia/Coleoptera/rus/ontvackm.htm

Year: 2007

Orsodacne cerasi (Linnaeus, 1758) (atlas)

online; cit. 2025-11-28, Available from URL: https://www.kaefer-der-welt.de/orsodacne__cerasi.htm

Year: 2015

Orsodacne cerasi (Linnaeus, 1758) (dichroismus)

online; cit. 2025-11-28, Available from URL: https://cassidae.uni.wroc.pl/Colpolon/orsodacne%20cerasi.htm

Orsodacne cerasi (Linnaeus, 1758) (dimorfismus)

online; cit. 2025-11-28, Available from URL: https://cassidae.uni.wroc.pl/Colpolon/orsodacne%20cerasi.htm

Orsodacne humeralis humeralis (Latreille, 1804) (atlas)

online; cit. 2025-11-28, Available from URL: https://www.kaefer-der-welt.de/orsodacne__lineola.htm

Year: 2015

Orsodacne humeralis humeralis (Latreille, 1804) (dichroismus)

online; cit. 2025-11-28, Available from URL: https://cassidae.uni.wroc.pl/Colpolon/orsodacne%20humeralis.htm

Year: 2015

Orsodacne humeralis humeralis (Latreille, 1804) (dimorfismus)

online; cit. 2025-11-28, Available from URL: https://www.galerie-insecte.org/galerie/view.php?ref=95504

Oryctes (Oryctes) nasicornis ondrejanus (Minck, 1918) - představujeme

online; cit. 2025-12-11, Available from URL: https://www.kaefer-der-welt.de/oryctes_nasicornis.htm

Year: 2014

Osmoderma barnabita (Motschulsky, 1845) - představujeme

online; cit. 2025-12-11, Available from URL: https://cassidae.uni.wroc.pl/Colpolon/osmoderma%20coriarium.htm

Oxythyrea funesta (Poda von Neuhaus, 1761) - představujeme

online; cit. 2025-12-11, Available from URL: https://www.kaefer-der-welt.de/oxythyrea__funesta.htm

Year: 2017