Andrena geranii
This record describes Andrena geranii (species). Recorded family: Andrenidae. Recorded order: Hymenoptera.
Identification and Appearance
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Trigonaloidea
- Family
- Andrenidae (Miner, Fairy, Allied Panurgine, and Oxaeine Bees)
- Subfamily
- Andreninae
- Genus
- Andrena
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
across the US & Canada Colorado and Minnesota, east to Virginia and the New England states Discover Life Map
Seasonal Activity
April to July
Diet and Behavior
Diet: Pollen of Hydrophyllum (waterleaf). The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.
Additional species information
Species notes from the sources
Etymology: Andrena geranii Robertson 1891
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Andrena geranii. 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 Andrena geranii (2)
Photo credits: Contributed by v belov; Additional contributions by Beatriz Moisset , John S. Ascher , hg , PaleoJon
Frequently Asked Questions About Andrena geranii
Where is Andrena geranii found?
Range: across the US & Canada Colorado and Minnesota, east to Virginia and the New England states Discover Life Map
What does Andrena geranii eat?
The diet of the Andrena geranii includes Pollen of Hydrophyllum (waterleaf). The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..
When is Andrena geranii active?
Andrena geranii: seasonal activity - April to July.