Osmia simillima
This record describes Osmia simillima (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
- Osmiini
- Genus
- Osmia (Mason Bees)
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
British Columbia to Nova Scotia, south to Arizona and North Carolina. Discover Life Global Map
Seasonal Activity
April to August.
Diet and Behavior
Diet: This is recorded by Robertson (1929) on Oxalis and Ranunculus . 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: Author of species is Smith, 1853.
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Osmia simillima. 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.
Frequently Asked Questions About Osmia simillima
How big is Osmia simillima?
Female, 11-12mm. Male, 10-12mm.
Where is Osmia simillima found?
Range: British Columbia to Nova Scotia, south to Arizona and North Carolina. Discover Life Global Map
What does Osmia simillima eat?
The diet of the Osmia simillima includes This is recorded by Robertson (1929) on Oxalis and Ranunculus . The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..
When is Osmia simillima active?
Osmia simillima: seasonal activity - April to August..