Trachusa dorsalis
This record describes Trachusa dorsalis (species). Recorded family: Megachilidae. Recorded order: Hymenoptera.
Identification and Appearance
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
- Anthidiini
- Genus
- Trachusa
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
New Jersey to Alabama.
Seasonal Activity
August and September.
Diet and Behavior
Diet: Pollen specialist on Strophostyles Elliot (fuzy bean, Fabaceae)
Additional species information
Species notes from the sources
Etymology: Author: (Lepeletier, 1841)
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Trachusa dorsalis. 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 Trachusa dorsalis (4)
Photo credits: Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , PaleoJon
Frequently Asked Questions About Trachusa dorsalis
How big is Trachusa dorsalis?
Female: 13 mm. Male 14 mm.
Where is Trachusa dorsalis found?
Range: New Jersey to Alabama.
What does Trachusa dorsalis eat?
The diet of the Trachusa dorsalis includes Pollen specialist on Strophostyles Elliot (fuzy bean, Fabaceae).
When is Trachusa dorsalis active?
Trachusa dorsalis: seasonal activity - August and September..