ColeopteraScarabaeidae – Scarab Beetles

Onthophagus cavernicollis

This record describes Onthophagus cavernicollis (species). Recorded family: Scarabaeidae. Recorded order: Coleoptera.

Identification and Appearance

Onthophagus cavernicollis - Onthophagus cavernicollis
Contributed by Mike Quinn; Additional contributions by v belov

Slay et al. (2012) categorize this sp. as a troglophile (an animal that may complete its life cycle in a cave, but can also survive outside)

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Scarabaeoidea
Family
Scarabaeidae (Scarab Beetles)
Subfamily
Scarabaeinae
Tribe
Onthophagini
Genus
Onthophagus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

twilight and dark zones of caves. Of 32 spmns with label data examined by Slay et al. (2012), only five taken outside of caves.

Geographic Range

most records from the Ozark region but range extends sw. to c.TX. (Slay et al. 2012) Type Locality: Cave-Without-A-Name just north of San Antonio, TX

Seasonal Activity

recorded from every month except Aug & Dec. (Slay et al. 2012)

Diet and Behavior

Life History

appears to be closely tied to eastern woodrat ( Neotoma floridana ) nests; association with bat guano not confirmed. Slay et al. (2012) "strongly suspect" the larval food is detritus or dung in N. floridana nests, but larvae still unknown.

Additional species information

Species notes from the sources

Etymology: Onthophagus cavernicollis Howden & Cartwright 1963

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Onthophagus cavernicollis. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Frequently Asked Questions About Onthophagus cavernicollis

What is Onthophagus cavernicollis?

Onthophagus cavernicollis is a species in the family Scarabaeidae, within the order Coleoptera.

How big is Onthophagus cavernicollis?

7.5‒11.2 mm (Slay et al. 2012)

Where is Onthophagus cavernicollis found?
FeatureDetails
Habitattwilight and dark zones of caves. Of 32 spmns with label data examined by Slay et al. (2012), only five taken outside of caves.
Rangemost records from the Ozark region but range extends sw. to c.TX. (Slay et al. 2012) Type Locality: Cave-Without-A-Name just north of San Antonio, TX
When is Onthophagus cavernicollis active?

Onthophagus cavernicollis: seasonal activity - recorded from every month except Aug & Dec. (Slay et al. 2012).

What is the life cycle of a Onthophagus cavernicollis?

appears to be closely tied to eastern woodrat ( Neotoma floridana ) nests; association with bat guano not confirmed. Slay et al. (2012) strongly suspect the larval food is detritus or dung in N. floridana nests, but larvae still unknown.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Mike Quinn; Additional contributions by v belov. Contributors retain copyright over their individual contributions.