---
title: "Horned Passalus Beetle"
description: "Odontotaenius disjunctus — Insectos y arañas. Odontotaenius disjunctus, the patent-leather beetle or horned passalus, is a saproxylic beetle in the family Passalidae (bess beetles) which can grow to over 3 cm long, weigh 1-2 grams and are capable of pulling 50 times their own weight."
canonical: https://animalchecklist.com/es/animal/horned-passalus-beetle
last_updated: 2026-09-20
---

# Horned Passalus Beetle

> Odontotaenius disjunctus — Insectos y arañas. Odontotaenius disjunctus, the patent-leather beetle or horned passalus, is a saproxylic beetle in the family Passalidae (bess beetles) which can grow to over 3 cm long, weigh 1-2 grams and are capable of pulling 50 times their own weight.

- Scientific name: *Odontotaenius disjunctus*
- Category: `insects` (Insectos y arañas)
- Habitats: `forest` (Bosque)
- iNaturalist observations: 32366
- Wikidata: [Q519010](https://www.wikidata.org/wiki/Q519010)
- iNaturalist taxon: [122214](https://www.inaturalist.org/taxa/122214)

## Names

- en: Horned Passalus Beetle

## Countries with the most observations

US (29919), CA (162)

## Summary

Odontotaenius disjunctus, the patent-leather beetle or horned passalus, is a saproxylic beetle in the family Passalidae (bess beetles) which can grow to over 3 cm long, weigh 1-2 grams and are capable of pulling 50 times their own weight. They have been used to study several aspects of general family characteristics since the early 1900s but remain a relatively unknown species within the diverse Coleoptera order.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Odontotaenius_disjunctus

## Photo

![Horned Passalus Beetle](https://animalchecklist.com/img/animals/horned-passalus-beetle/medium.jpg)

Photo: Allen Hurlbert · CC0 · inaturalist — https://www.inaturalist.org/observations/161470081

## Machine access

`GET https://animalchecklist.com/api/v1/animals/horned-passalus-beetle?lang=es` — see [openapi.json](https://animalchecklist.com/openapi.json).