Great Feather-tongue-Cuckoo
Triepeolus grandis
This record describes Triepeolus grandis (species). Recorded family: Apidae. Recorded order: Hymenoptera.
Identification and Appearance

Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Trigonaloidea
- Family
- Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
- Subfamily
- Nomadinae
- Tribe
- Epeolini
- Genus
- Triepeolus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Desert and nearby canyons
Geographic Range
Southwest Discover Life Map
Seasonal Activity
mostly late summer
Diet and Behavior
Diet: Recorded on Baccharis, Rudbeckia, Verbesina, Melilotus, Kallstroemia . The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images. A cleptoparasite of Ptiloglossa bees (and possibly Caupolicana as well)
Additional species information
Species notes from the sources
Etymology: Triepeolus grandis (Friese, 1917)
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Triepeolus grandis. 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 Great Feather-tongue-Cuckoo (5)
Photo credits: Contributed by John S. Ascher; Additional contributions by hg , PaleoJon
Frequently Asked Questions About Great Feather-tongue-Cuckoo
Where is Great Feather-tongue-Cuckoo found?
| Feature | Details |
|---|---|
| Habitat | Desert and nearby canyons |
| Range | Southwest Discover Life Map |
What does Great Feather-tongue-Cuckoo eat?
The diet of the Great Feather-tongue-Cuckoo includes Recorded on Baccharis, Rudbeckia, Verbesina, Melilotus, Kallstroemia . The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images. A cleptoparasite of Ptiloglossa bees (and possibly Caupolicana as well).
When is Great Feather-tongue-Cuckoo active?
Great Feather-tongue-Cuckoo: seasonal activity - mostly late summer.
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