HymenopteraCrabronidae – Square-headed Wasps, Sand Wasps, and Allies

Crossocerus binotatus

This record describes Crossocerus binotatus (species). Recorded family: Crabronidae. Recorded order: Hymenoptera.

Identification and Appearance

Crossocerus binotatus - Crossocerus binotatus
Contributed by Matthias Buck; Additional contributions by v belov

Differs from all North American species by the unusual colour pattern (metasoma richly marked with yellow but spots on tergum 2 much smaller than on following terga; tergum 1 with yellow sides) and the unusually slender first metasomal segment (a few Nearctic species also have a slender first segment but lack yellow markings on the metasoma). A few other European species are very similar.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Trigonaloidea
Family
Crabronidae (Square-headed Wasps, Sand Wasps, and Allies)
Subfamily
Crabroninae
Tribe
Crabronini
Genus
Crossocerus

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

Habitat and Range

Geographic Range

Central and northern Europe, apparently introduced to Quebec.

Additional species information

Species notes from the sources

Etymology: Crossocerus binotatus Lepeletier & Brullé 1835

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Crossocerus binotatus. 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 Crossocerus binotatus (3)

Crossocerus binotatus - photo 1
Contributed by Matthias Buck; Additional contributions by v belov
Crossocerus binotatus - photo 2
Contributed by Matthias Buck; Additional contributions by v belov
Crossocerus binotatus - photo 3
Contributed by Matthias Buck; Additional contributions by v belov

Photo credits: Contributed by Matthias Buck; Additional contributions by v belov

Frequently Asked Questions About Crossocerus binotatus

What is Crossocerus binotatus?

Crossocerus binotatus is a species in the family Crabronidae, within the order Hymenoptera.

How do you identify Crossocerus binotatus?

Differs from all North American species by the unusual colour pattern (metasoma richly marked with yellow but spots on tergum 2 much smaller than on following terga; tergum 1 with yellow sides) and the unusually slender first metasomal segment (a few Nearctic species also have a slender first segment but lack yellow markings on the metasoma). A few other European species are very similar.

Where is Crossocerus binotatus found?

Range: Central and northern Europe, apparently introduced to Quebec.

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

Photo credits: Contributed by Matthias Buck; Additional contributions by v belov. Contributors retain copyright over their individual contributions.