HymenopteraFormicidae – Ants

Temnothorax obturator

This record describes Temnothorax obturator (species). Recorded family: Formicidae. Recorded order: Hymenoptera.

Identification and Appearance

Temnothorax obturator - Temnothorax obturator
Contributed by Steven Wang

Rounder petiole than most other Temnothorax (as opposed to angled), small propodeal spines united by a carina.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Formicoidea
Family
Formicidae (Ants)
Subfamily
Myrmicinae
Tribe
Crematogastrini
Genus
Temnothorax (Acorn Ants)

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

Habitat and Range

Habitat

Typically nest in live oak galls ( Quercus virginiana ) but also sometimes hollow branches of living ironwood ( Bumelia lanuginosa ) and wafer ash ( Ptelea trifoliata )

Geographic Range

East central Texas, also collected from the Chiricahua Mtns of AZ

Diet and Behavior

Life History

Mature colonies rarely contain more than 36-40 workers

Additional species information

Species notes from the sources

Etymology: Temnothorax obturator (Wheeler, W.M., 1903) Originally described in Leptothorax

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Temnothorax obturator. 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 Temnothorax obturator (4)

Temnothorax obturator - photo 1
Contributed by Steven Wang
Temnothorax obturator - photo 2
Contributed by Steven Wang
Temnothorax obturator - photo 3
Contributed by Steven Wang
Temnothorax obturator - photo 4
Contributed by Steven Wang

Photo credits: Contributed by Steven Wang

Frequently Asked Questions About Temnothorax obturator

What is Temnothorax obturator?

Temnothorax obturator is a species in the family Formicidae, within the order Hymenoptera.

How do you identify Temnothorax obturator?

Rounder petiole than most other Temnothorax (as opposed to angled), small propodeal spines united by a carina.

Where is Temnothorax obturator found?
FeatureDetails
HabitatTypically nest in live oak galls ( Quercus virginiana ) but also sometimes hollow branches of living ironwood ( Bumelia lanuginosa ) and wafer ash ( Ptelea trifoliata )
RangeEast central Texas, also collected from the Chiricahua Mtns of AZ
What is the life cycle of a Temnothorax obturator?

Mature colonies rarely contain more than 36-40 workers

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

Photo credits: Contributed by Steven Wang. Contributors retain copyright over their individual contributions.