Megachile centuncularis
This record describes Megachile centuncularis (species). Recorded family: Megachilidae. Recorded order: Hymenoptera.
Identification and Appearance

A medium-sized bee (10 to 12 mm long). The abdomen is dark brown above, but the female has an orange pollen brush underneath. 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 occurs in a range of habitats including gardens. Mid-June through to mid-August with its peak in July. Pollen is obtained from a variety of flowers, but perhaps especially Asteraceae such as thistles, knapweeds, Fleabane and Cat's-ear, and also from the flowers of various members of the pea family. A widespread species in Britain, although it is more frequently recorded from the south.
Wikipedia reference for Megachile centuncularis: http://en.wikipedia.org/wiki/Megachile_centuncularis.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Trigonaloidea
- Family
- Megachilidae (Leafcutter, Mason, and Resin Bees, and allies)
- Subfamily
- Megachilinae
- Tribe
- Megachilini
- Genus
- Megachile (Leafcutter and Resin Bees)
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
It occurs in a range of habitats including gardens.
Seasonal Activity
Mid-June through to mid-August with its peak in July.
Diet and Behavior
Life History
Pollen is obtained from a variety of flowers, but perhaps especially Asteraceae such as thistles, knapweeds, Fleabane and Cat's-ear, and also from the flowers of various members of the pea family.
Additional species information
Recorded status
A widespread species in Britain, although it is more frequently recorded from the south.
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Megachile centuncularis. 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.
Photos of Megachile centuncularis (3)
Frequently Asked Questions About Megachile centuncularis
What is Megachile centuncularis?
Megachile centuncularis is a species in the family Megachilidae, within the order Hymenoptera.
Where is Megachile centuncularis found?
Habitat: It occurs in a range of habitats including gardens.
When is Megachile centuncularis active?
Megachile centuncularis: seasonal activity - Mid-June through to mid-August with its peak in July..
What is the life cycle of a Megachile centuncularis?
Pollen is obtained from a variety of flowers, but perhaps especially Asteraceae such as thistles, knapweeds, Fleabane and Cat's-ear, and also from the flowers of various members of the pea family.
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