ColeopteraScarabaeidae – Scarab Beetles

Tomarus subtropicus

This record describes Tomarus subtropicus (species). Recorded family: Scarabaeidae. Recorded order: Coleoptera.

Identification and Appearance

Tomarus subtropicus - Tomarus subtropicus
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

frontoclypeal tubercles transverse and low; pronotal punctures small; pronotal tubercle small but visible in lateral view; pronotal fovea shallow and narrow (⅓ as wide as interocular distance); protibia tridentate, rarely with an additional basal denticle; apex of metatibia with 11–14 spinules economic pest in sugarcane in the US; also attacks roots of other grasses

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Scarabaeoidea
Family
Scarabaeidae (Scarab Beetles)
Subfamily
Dynastinae
Tribe
Pentodontini
Genus
Tomarus

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

Habitat and Range

Habitat

strictly coastal

Geographic Range

se.US (SC‒FL‒LA)

Seasonal Activity

Jun‒Aug

Additional species information

Species notes from the sources

Etymology: Tomarus subtropicus (Blatchley)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Tomarus subtropicus. 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 Tomarus subtropicus (5)

Tomarus subtropicus - photo 1
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov
Tomarus subtropicus - photo 2
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov
Tomarus subtropicus - photo 3
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov
Tomarus subtropicus - photo 4
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov
Tomarus subtropicus - photo 5
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

Photo credits: Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

Frequently Asked Questions About Tomarus subtropicus

What is Tomarus subtropicus?

Tomarus subtropicus is a species in the family Scarabaeidae, within the order Coleoptera.

How big is Tomarus subtropicus?

17.5‒27.5 mm

How do you identify Tomarus subtropicus?

frontoclypeal tubercles transverse and low; pronotal punctures small; pronotal tubercle small but visible in lateral view; pronotal fovea shallow and narrow (⅓ as wide as interocular distance); protibia tridentate, rarely with an additional basal denticle; apex of metatibia with 11–14 spinules

Where is Tomarus subtropicus found?
FeatureDetails
Habitatstrictly coastal
Rangese.US (SC‒FL‒LA)
When is Tomarus subtropicus active?

Tomarus subtropicus: seasonal activity - Jun‒Aug.

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

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