ColeopteraScarabaeidae – Scarab Beetles

Deltochilum scabriusculum

This record describes Deltochilum scabriusculum (species). Recorded family: Scarabaeidae. Recorded order: Coleoptera.

Identification and Appearance

Deltochilum scabriusculum - Deltochilum scabriusculum
Contributed by Mike Quinn

First U.S. report of this sp. appears to be from Leng (1920) who cites Tex as the range of the species. ( 6 ) Texas considers this to be a Species of Greatest Conservation Need (SGCN) ( 7 )

Classification

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

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

Habitat and Range

Geographic Range

southmost TX (Cameron Co.) to Costa Rica - Map (Howden 1966) ( 4 ) ( 5 )

Seasonal Activity

Number of compiled Texas collecting events by month: June, September, October. June through November in Mexico

Diet and Behavior

Life History

Deltochilum species appear to be general scavengers of dung and carrion (Halffter & Matthews 1966).

Additional species information

Species notes from the sources

Etymology: Deltochilum scabriusculum Bates 1887

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Deltochilum scabriusculum. 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 →

Photos of Deltochilum scabriusculum (4)

Deltochilum scabriusculum - photo 1
Contributed by Mike Quinn
Deltochilum scabriusculum - photo 2
Contributed by Mike Quinn
Deltochilum scabriusculum - photo 3
Contributed by Mike Quinn
Deltochilum scabriusculum - photo 4
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Deltochilum scabriusculum

What is Deltochilum scabriusculum?

Deltochilum scabriusculum is a species in the family Scarabaeidae, within the order Coleoptera.

How big is Deltochilum scabriusculum?

20-24 mm long, and 15.5 mm wide ( 3 )

Where is Deltochilum scabriusculum found?

Range: southmost TX (Cameron Co.) to Costa Rica - Map (Howden 1966) ( 4 ) ( 5 )

When is Deltochilum scabriusculum active?

Deltochilum scabriusculum: seasonal activity - Number of compiled Texas collecting events by month: June, September, October. June through November in Mexico.

What is the life cycle of a Deltochilum scabriusculum?

Deltochilum species appear to be general scavengers of dung and carrion (Halffter & Matthews 1966).

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

Photo credits: Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.