HymenopteraSphecidae – Thread-waisted Wasps

Ammophila placida

This record describes Ammophila placida (species). Recorded family: Sphecidae. Recorded order: Hymenoptera.

Identification and Appearance

Ammophila placida - Ammophila placida
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon

A very conspicuous western species with brightly-pigmented orange wings and no silvery markings on the thorax whatsoever. In the east, see also A. pictipennis , which is separated by the structure of the male genitalia. Those of A. placita have a spine on the penis valve head. The two species overlap from about 96° to 104°W, where they are otherwise impossible to separate.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Trigonaloidea
Family
Sphecidae (Thread-waisted Wasps)
Subfamily
Ammophilinae
Genus
Ammophila

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

Habitat and Range

Geographic Range

Western United States to 96°W, south into western Mexico

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Ammophila placida. 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 Ammophila placida (5)

Ammophila placida - photo 1
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon
Ammophila placida - photo 2
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon
Ammophila placida - photo 3
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon
Ammophila placida - photo 4
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon
Ammophila placida - photo 5
Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon

Photo credits: Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon

Frequently Asked Questions About Ammophila placida

What is Ammophila placida?

Ammophila placida is a species in the family Sphecidae, within the order Hymenoptera.

How do you identify Ammophila placida?

A very conspicuous western species with brightly-pigmented orange wings and no silvery markings on the thorax whatsoever. In the east, see also A. pictipennis , which is separated by the structure of the male genitalia. Those of A. placita have a spine on the penis valve head. The two species overlap from about 96° to 104°W, where they are otherwise impossible to separate.

Where is Ammophila placida found?

Range: Western United States to 96°W, south into western Mexico

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

Photo credits: Contributed by John S. Ascher; Additional contributions by cotinis , Beatriz Moisset , PaleoJon. Contributors retain copyright over their individual contributions.