HymenopteraFormicidae – Ants

Camponotus ocreatus

This record describes Camponotus ocreatus (species). Recorded family: Formicidae. Recorded order: Hymenoptera.

Identification and Appearance

Camponotus ocreatus - Camponotus ocreatus
Contributed by Ken Schneider; Additional contributions by Steven Wang

Very large major workers, among the largest Camponotus in the US based on worker size. US queens of Tanaemyrmex however are often slightly smaller than other species in the Camponotus subgenus, even in the largest species. Seems to be more dominant in the central parts of the range, especially in central and southern Arizona.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Formicoidea
Family
Formicidae (Ants)
Subfamily
Formicinae
Tribe
Camponotini
Genus
Camponotus (Carpenter Ants)

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

Habitat and Range

Habitat

Ground nesting in soil

Geographic Range

CA, NV, AZ, NM, TX, south into Mexico.

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Camponotus ocreatus. Species-specific details appear above.

Group overview

Hymenoptera includes over 150,000 described species of ants, bees, wasps, and sawflies. Earth harbors approximately 20 quadrillion (20×10^15) ants, with a combined biomass of ~12 megatons of dry carbon - exceeding the combined biomass of all wild birds and mammals (PNAS, 2022).

Ecological role of the group

About 35% of the world's food crops depend on animal pollinators. The chocolate industry, valued at over $100 billion, depends on pollinating flies and midges. Ants are the dominant soil engineers in most terrestrial ecosystems, turning more soil than earthworms in many habitats.

Economic and practical significance of the group

Pollinators contribute $235-577 billion worth of annual global food production (FAO). In the U.S., bee pollination alone benefits crops valued at $18 billion annually, and honey bees are responsible for $5.4 billion in agricultural productivity. Between April 2023-2024, 55.1% of managed honey bee colonies were lost. The U.S. bee population dropped from 5 million to 2.5 million.

Recorded sources for this group: FAO, USDA, EPA, PNAS (2022), US Fish & Wildlife Service. Imported estimates may describe particular regions or reporting periods.

Explore Hymenoptera families and species →

Photos of Camponotus ocreatus (5)

Camponotus ocreatus - photo 1
Contributed by Ken Schneider; Additional contributions by Steven Wang
Camponotus ocreatus - photo 2
Contributed by Ken Schneider; Additional contributions by Steven Wang
Camponotus ocreatus - photo 3
Contributed by Ken Schneider; Additional contributions by Steven Wang
Camponotus ocreatus - photo 4
Contributed by Ken Schneider; Additional contributions by Steven Wang
Camponotus ocreatus - photo 5
Contributed by Ken Schneider; Additional contributions by Steven Wang

Photo credits: Contributed by Ken Schneider; Additional contributions by Steven Wang

Frequently Asked Questions About Camponotus ocreatus

What is Camponotus ocreatus?

Camponotus ocreatus is a species in the family Formicidae, within the order Hymenoptera.

How do you identify Camponotus ocreatus?

Very large major workers, among the largest Camponotus in the US based on worker size. US queens of Tanaemyrmex however are often slightly smaller than other species in the Camponotus subgenus, even in the largest species.

Where is Camponotus ocreatus found?
FeatureDetails
HabitatGround nesting in soil
RangeCA, NV, AZ, NM, TX, south into Mexico.

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

Photo credits: Contributed by Ken Schneider; Additional contributions by Steven Wang. Contributors retain copyright over their individual contributions.