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

Crossocerus nitidiventris

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

Identification and Appearance

Crossocerus nitidiventris - Crossocerus nitidiventris
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov

It is an unusual species in its genus because of the yellow markings on the abdomen (only present in one other species). What makes this this wasp distinctive is: yellow spots on smooth area of propodeum, yellow prepectus (that's the area just behind the pronotal lobe), rounded pronotal angles (excludes many other crabronines with similar markings), and yellow spots of similar size on terga 2-5.

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

Quebec & Ontario, south to Georgia and west to Minnesota and Texas

Diet and Behavior

Diet: Larvae provisioned by females with flies. Recorded prey species includes Nephrotoma virescens , a tipulid. Adults take nectar at flowers.

Additional species information

Species notes from the sources

Etymology: Epithet nitidiventris from Latin: nitidi- = shining, handsome; ventris = underside, belly...as in "venter".

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Crossocerus nitidiventris. 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 nitidiventris (5)

Crossocerus nitidiventris - photo 1
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov
Crossocerus nitidiventris - photo 2
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov
Crossocerus nitidiventris - photo 3
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov
Crossocerus nitidiventris - photo 4
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov
Crossocerus nitidiventris - photo 5
Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov

Photo credits: Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov

Frequently Asked Questions About Crossocerus nitidiventris

What is Crossocerus nitidiventris?

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

How big is Crossocerus nitidiventris?

11 - 12 mm

How do you identify Crossocerus nitidiventris?

It is an unusual species in its genus because of the yellow markings on the abdomen (only present in one other species). What makes this this wasp distinctive is: yellow spots on smooth area of propodeum, yellow prepectus (that's the area just behind the pronotal lobe), rounded pronotal angles (excludes many other crabronines with similar markings), and yellow spots of similar size on terga 2-5.

Where is Crossocerus nitidiventris found?

Range: Quebec & Ontario, south to Georgia and west to Minnesota and Texas

What does Crossocerus nitidiventris eat?

The diet of the Crossocerus nitidiventris includes Larvae provisioned by females with flies. Recorded prey species includes Nephrotoma virescens , a tipulid. Adults take nectar at flowers..

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

Photo credits: Contributed by Matthias Buck; Additional contributions by tom murray , Aaron Schusteff , v belov. Contributors retain copyright over their individual contributions.