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

Stelis louisae

This record describes Stelis louisae (species). Recorded family: Megachilidae. Recorded order: Hymenoptera.

Identification and Appearance

Stelis louisae - Stelis louisae
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , John S. Ascher , 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
Anthidiini
Genus
Stelis

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Eastern half of US Discover Life Map

Seasonal Activity

March to September.

Diet and Behavior

Diet: Recorded on Helianthus . 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: Stelis louisae Cockerell, 1911

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Stelis louisae. 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 Stelis louisae (2)

Stelis louisae - photo 1
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , John S. Ascher , hg , PaleoJon
Stelis louisae - photo 2
Contributed by Eric R. Eaton; Additional contributions by Beatriz Moisset , John S. Ascher , hg , PaleoJon

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

Frequently Asked Questions About Stelis louisae

Where is Stelis louisae found?

Range: Eastern half of US Discover Life Map

What does Stelis louisae eat?

The diet of the Stelis louisae includes Recorded on Helianthus . The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..

When is Stelis louisae active?

Stelis louisae: seasonal activity - March to September..

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

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