HymenopteraSphecidae – Thread-waisted Wasps

Isodontia apicalis

This record describes Isodontia apicalis (species). Recorded family: Sphecidae. Recorded order: Hymenoptera.

Identification and Appearance

Isodontia apicalis - Isodontia apicalis
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould

Very large head, stocky build; white hairs on thorax. Very similar to I. mexicana. For distinguishing characters see species page .

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Trigonaloidea
Family
Sphecidae (Thread-waisted Wasps)
Subfamily
Sphecinae
Tribe
Sphecini
Genus
Isodontia (Grass-carrying Wasps)

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

Habitat and Range

Geographic Range

eastern United States (New Jersey, Virginia, South Carolina, Georgia, Florida), westward through Tennessee and Louisiana to Texas (fig. 17). Also in eastern Nebraska and Arizona.

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Isodontia apicalis. 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 Isodontia apicalis (5)

Isodontia apicalis - photo 1
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould
Isodontia apicalis - photo 2
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould
Isodontia apicalis - photo 3
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould
Isodontia apicalis - photo 4
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould
Isodontia apicalis - photo 5
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould

Photo credits: Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould

Frequently Asked Questions About Isodontia apicalis

What is Isodontia apicalis?

Isodontia apicalis is a species in the family Sphecidae, within the order Hymenoptera.

How big is Isodontia apicalis?
FeatureDetails
Female20mm.
Male18 mm
How do you identify Isodontia apicalis?

Very large head, stocky build; white hairs on thorax. Very similar to I. mexicana. For distinguishing characters see species page .

Where is Isodontia apicalis found?

Range: eastern United States (New Jersey, Virginia, South Carolina, Georgia, Florida), westward through Tennessee and Louisiana to Texas (fig. 17). Also in eastern Nebraska and Arizona.

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

Photo credits: Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , Matthias Buck , anitagould. Contributors retain copyright over their individual contributions.