Andrena rugosa
This record describes Andrena rugosa (species). Recorded family: Andrenidae. Recorded order: Hymenoptera.
Identification and Appearance

Facial fovea of the female extremely narrow below and separated from the inner margin of the compound eye by more than twice the width of the fovea (at the level of the greatest separation from the eye). Coarse punctures of scutum.
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
Minnesota to the New England states and Nova Scotia, south to North Carolina and Georgia. Discover Life Map
Seasonal Activity
April to July
Diet and Behavior
Diet: Visits flowers from several families. 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 (Trachandrena) rugosa Robertson, 1891
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Andrena rugosa. 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 rugosa (5)
Photo credits: Contributed by John S. Ascher; Additional contributions by Beatriz Moisset , hg , PaleoJon
Frequently Asked Questions About Andrena rugosa
What is Andrena rugosa?
Andrena rugosa is a species in the family Andrenidae, within the order Hymenoptera.
How big is Andrena rugosa?
Female 8-10 mm. Male 7-9 mm.
How do you identify Andrena rugosa?
Facial fovea of the female extremely narrow below and separated from the inner margin of the compound eye by more than twice the width of the fovea (at the level of the greatest separation from the eye). Coarse punctures of scutum.
Where is Andrena rugosa found?
Range: Minnesota to the New England states and Nova Scotia, south to North Carolina and Georgia. Discover Life Map
What does Andrena rugosa eat?
The diet of the Andrena rugosa includes Visits flowers from several families. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images..
When is Andrena rugosa active?
Andrena rugosa: seasonal activity - April to July.
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