HymenopteraCrabronidae

Ectemnius sexcinctus

This record describes Ectemnius sexcinctus (species). Recorded family: Crabronidae. Recorded order: Hymenoptera.

Identification and Appearance

Ectemnius sexcinctus - Ectemnius sexcinctus

A large Ectemnius species with yellow and black wasp like markings and closely resembling the more common Ectemnius continuus. Most solitary bees and wasps are difficult to identify, and can rarely be identified from photos taken in the field. All red-rated records should include a photo or set of photos of the specimen, illustrating the key characters taken from a standard key, which should also be referenced (e.g. ‘Falk, 2015’). The full set of key characters are generally not visible in field photos and photos are rarely sharp enough. To aid in the verification of your records, please include face shot, side, top and wings. The notes should state whether male or female, and explain how the specimen met the key characters. Although NS may not be able to identify the species even if these reference photos are provided, the photos will be stored with the record and may allow it be identified in future. Alternatively, NS will accept records identified by a recognised local or national expert, or that have been identified via BWARS Facebook Group . If you have obtained this advice, please note the name of the person/organisation identifying the record in the ‘determiner’ field (e.g. ‘Stuart Roberts, BWARS Facebook’) rather than just a comment of ‘BWARS Facebook’. It utilises coastal, rural and urban locations. Usually most evident around large pieces of dead wood or on umbellifer flowers. Usually nesting in dead wood. Nests are stocked with a variety of medium-sized flies and hoverflies. Sparsely recorded throughout England and Wales, extending as far north as the Whitby area of North-east Yorkshire. No clear northern or southern bias is apparent, though it appears to have increased its presence in northern England over recent decades, whilst declining in counties such as Dorset. A Nationally Notable (Nb) species. No additional images available for this species.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Genus
Ectemnius

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

Habitat and Range

Habitat

It utilises coastal, rural and urban locations. Usually most evident around large pieces of dead wood or on umbellifer flowers.

Seasonal Activity

May to September.

Diet and Behavior

Life History

Usually nesting in dead wood. Nests are stocked with a variety of medium-sized flies and hoverflies.

Additional species information

Recorded status

Sparsely recorded throughout England and Wales, extending as far north as the Whitby area of North-east Yorkshire. No clear northern or southern bias is apparent, though it appears to have increased its presence in northern England over recent decades, whilst declining in counties such as Dorset. A Nationally Notable (Nb) species.

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Ectemnius sexcinctus. 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 →

Frequently Asked Questions About Ectemnius sexcinctus

What is Ectemnius sexcinctus?

Ectemnius sexcinctus is a species in the family Crabronidae, within the order Hymenoptera.

Where is Ectemnius sexcinctus found?

Habitat: It utilises coastal, rural and urban locations. Usually most evident around large pieces of dead wood or on umbellifer flowers.

When is Ectemnius sexcinctus active?

Ectemnius sexcinctus: seasonal activity - May to September..

What is the life cycle of a Ectemnius sexcinctus?

Usually nesting in dead wood. Nests are stocked with a variety of medium-sized flies and hoverflies.