HymenopteraHalictidae – Sweat, Furrow, Nomiine, and Short-faced Bees

Alkali Bee

Nomia melanderi

This record describes Nomia melanderi (species). Recorded family: Halictidae. Recorded order: Hymenoptera.

Identification and Appearance

Alkali Bee - Nomia melanderi
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green

Nest is irregular, with 15-20 cells [ diagram ]; construction takes ~30 days. Used commercially as a pollinator of alfalfa.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Trigonaloidea
Family
Halictidae (Sweat, Furrow, Nomiine, and Short-faced Bees)
Subfamily
Nomiinae
Genus
Nomia

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

Habitat and Range

Habitat

Ground nesting, sometimes in large colonies of many thousands of nests. Prefers alkali soils.

Geographic Range

Washington to Wyoming to Southern California Discover Life Map

Seasonal Activity

June to September

Diet and Behavior

Diet: Pollen and nectar, preferably of alfalfa ( Medicago sativa ). The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.

Life History

Overwinter in a prepupal stage and complete growth in a second year

Additional species information

Species notes from the sources

Etymology: Nomia melanderi Cockerell, 1906

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Nomia melanderi. 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 Alkali Bee (5)

Alkali Bee - photo 1
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green
Alkali Bee - photo 2
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green
Alkali Bee - photo 3
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green
Alkali Bee - photo 4
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green
Alkali Bee - photo 5
Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green

Photo credits: Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green

Frequently Asked Questions About Alkali Bee

What is Alkali Bee?

Alkali Bee (Nomia melanderi) is a species in the family Halictidae, within the order Hymenoptera.

How big is Alkali Bee?

12-13 mm

Where is Alkali Bee found?
FeatureDetails
HabitatGround nesting, sometimes in large colonies of many thousands of nests. Prefers alkali soils.
RangeWashington to Wyoming to Southern California Discover Life Map
What does Alkali Bee eat?

The diet of the Alkali Bee includes Pollen and nectar, preferably of alfalfa ( Medicago sativa ). The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..

When is Alkali Bee active?

Alkali Bee: seasonal activity - June to September.

What is the life cycle of a Alkali Bee?

Overwinter in a prepupal stage and complete growth in a second year

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

Photo credits: Contributed by Beatriz Moisset; Additional contributions by Aaron Schusteff , v belov , hg , Nathaniel Green. Contributors retain copyright over their individual contributions.