Onthophagus depressus

Harold, 1871

scarab beetle

Onthophagus depressus is a dung beetle in the Scarabaeidae, originally described from Africa and now established in Australia and the southeastern United States as an introduced species. It belongs to a well-studied for and horn in males, though specific behavioral studies for this species are limited. The species has been recorded in carrion-associated , suggesting broader feeding than strict specialization.

Pronunciation

How to pronounce Onthophagus depressus: /ɒnˈθɒfəgəs dɪˈprɛsəs/

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Identification

As currently classified under Hamonthophagus, this can be distinguished from core Onthophagus by subtle morphological features of the pronotum and male genitalia. Males may exhibit horns, though the specific horn for O. depressus is not well-documented in accessible literature. The depressed (flattened) body form implied by the species epithet may aid in field recognition.

Habitat

Recorded from diverse environments including native African savanna and woodland , and introduced in Australian and North American urban and rural landscapes. Associated with mammal and carrion resources.

Distribution

Native to the Afrotropical region including Angola, Botswana, Burundi, Eswatini, Kenya, Malawi, Mozambique, Namibia, Democratic Republic of Congo, South Africa (Eastern Cape, Mpumalanga, Gauteng, KwaZulu-Natal, Limpopo), Tanzania, Zambia, and Zimbabwe. Introduced to Australia (New South Wales, Queensland) and the United States (Florida, Georgia, South Carolina).

Ecological Role

As a dung beetle, contributes to nutrient cycling through burial of mammal waste. Records from carrion suggest possible role in decomposition of animal remains. Introduced may provide services in urban and agricultural landscapes where native dung beetle are reduced.

Human Relevance

Established as a non-native in Australia and the southeastern United States, where it may contribute to removal in pasture and urban environments. No documented economic impacts or pest status.

Similar Taxa

Onthophagus hecateSimilar small size (6-9 mm) and carrion-visiting , but O. hecate males have a distinctive broad, forked horn projecting from the ; O. depressus is currently placed in a separate (Hamonthophagus)
Other Hamonthophagus speciesShare -level characters of pronotum and male genitalia structure; require dissection or expert examination for definitive identification