HymenopteraAulacidae – Aulacid Wasps

Pristaulacus auricomus

This record describes Pristaulacus auricomus (species). Recorded family: Aulacidae. Recorded order: Hymenoptera.

Identification and Appearance

Pristaulacus auricomus - Pristaulacus auricomus
Contributed by Jonathan Hoskins
FeatureDescription
Additional detailsSpecies diagnosis by David Smith: Head and body with golden pubescence, with black and yellow pattern.
WingsWings with anterior half dark brown, posterior half paler to hyaline.
HeadHead shining. Mesonotum with transverse carinae. Hind coxa shining with cross striations at posterior. The yellow markings on the thorax form a circular arrangement of 6 spots: 2 spots on either side of the pronotum; 2 lateral spots on each upper metapleuron; 2 spots on each lateral lobe of the mesoscutum. The propodeum additionally has a horseshoe-shaped mark outlining the upper surface of the insertion of the petiole. Seemingly a mimic of Sceliphron caementarium , the yellow-legged mud-dauber wasp.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Evanioidea
Family
Aulacidae (Aulacid Wasps)
Genus
Pristaulacus

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

Habitat and Range

Geographic Range

AZ; primary range from Mexico to Honduras

Additional species information

Species notes from the sources

Etymology: Pristaulacus auricomus Smith, 2008

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Pristaulacus auricomus. 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 Pristaulacus auricomus (2)

Pristaulacus auricomus - photo 1
Contributed by Jonathan Hoskins
Pristaulacus auricomus - photo 2
Contributed by Jonathan Hoskins

Photo credits: Contributed by Jonathan Hoskins

Frequently Asked Questions About Pristaulacus auricomus

What is Pristaulacus auricomus?

Pristaulacus auricomus is a species in the family Aulacidae, within the order Hymenoptera.

How big is Pristaulacus auricomus?
FeatureDetails
Female16.0 mm body length; 12.0 mm forewing; 14.0 mm ovipositor
Male14.5 body length; 10.0 mm forewing
How do you identify Pristaulacus auricomus?
FeatureDescription
Additional detailsSpecies diagnosis by David Smith: Head and body with golden pubescence, with black and yellow pattern.
WingsWings with anterior half dark brown, posterior half paler to hyaline.
HeadHead shining. Mesonotum with transverse carinae. Hind coxa shining with cross striations at posterior. The yellow markings on the thorax form a circular arrangement of 6 spots: 2 spots on either side of the pronotum; 2 lateral spots on each upper metapleuron; 2 spots on each lateral lobe of the mesoscutum. The propodeum additionally has a horseshoe-shaped mark outlining the upper surface of the insertion of the petiole.
Where is Pristaulacus auricomus found?

Range: AZ; primary range from Mexico to Honduras

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

Photo credits: Contributed by Jonathan Hoskins. Contributors retain copyright over their individual contributions.