HymenopteraMegachilidae – Leafcutter, Mason, and Resin Bees, and allies

Texas Mason Bee

Osmia texana

This record describes Osmia texana (species). Recorded family: Megachilidae. Recorded order: Hymenoptera.

Identification and Appearance

Texas Mason Bee - Osmia texana
Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon

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

Primarily western, ranging from British Columbia and California to North Dakota and Texas. Collections have also been made in the East, with positive records in Michigan, New York and Florida. (Mitchell, 1962) Discover Life Map

Seasonal Activity

May to August, but as early as March in Florida

Diet and Behavior

Diet: Cirsium among several others. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Osmia texana. 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 →

Photos of Texas Mason Bee (4)

Texas Mason Bee - photo 1
Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon
Texas Mason Bee - photo 2
Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon
Texas Mason Bee - photo 3
Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon
Texas Mason Bee - photo 4
Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon

Photo credits: Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon

Frequently Asked Questions About Texas Mason Bee

How big is Texas Mason Bee?
FeatureDetails
Female12 mm.
Male9 mm.
Where is Texas Mason Bee found?

Range: Primarily western, ranging from British Columbia and California to North Dakota and Texas. Collections have also been made in the East, with positive records in Michigan, New York and Florida. (Mitchell, 1962) Discover Life Map

What does Texas Mason Bee eat?

The diet of the Texas Mason Bee includes Cirsium among several others. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..

When is Texas Mason Bee active?

Texas Mason Bee: seasonal activity - May to August, but as early as March in Florida.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon. Contributors retain copyright over their individual contributions.