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- Kingdom - Animals - Animalia
  - Phylum - Spiders, Insects, and Crustaceans - Arthropoda
    - Class - Insects - Insecta
      - Order - Mayflies - Ephemeroptera
        
        Family - Baetid Mayflies - Baetidae
        
        Species - Hagen's Small Minnow Mayfly - Diphetor hageni

Hagen's Small Minnow Mayfly - Diphetor hageni

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Native Species

Global Rank: G5
State Rank: SNR

Agency Status
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General Description

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Species Range

Montana Range Range Descriptions

Native

Observations in Montana Natural Heritage Program Database

Number of Observations: 251

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Relative Density

Recency

(Observations spanning multiple months or years are excluded from time charts)

Stewardship Responsibility

References

Additional ReferencesLegend: View Online Publication
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- Driear, R. E. 1974. A comparative study of the aquatic insect populations of Rock Creek, Montana and its major tributaries. M.S. thesis. University of Montana.
- Garrett, P.A. 1973. The distribution and abundance of aquatic insects in the Middle West Gallatin drainage. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p.
- Glorvigen, T.H. 1972. The responses of insect communities in the East Gallatin River, Montana, to sewage effluents. M.Sc. Thesis. Bozeman, Montana: Montana State University. 24 p.
- Gustafson, D. L. 1990. Ecology of aquatic insects in the Gallatin River drainage. Ph.D. Dissertation. Bozeman, MT: Montana State University. 194 p.
- Koelsch, Patrick Karl. 1975. Species diversity of stream insects as a measure of ecological stress for Post Creek, Lake County, Montana. M.S. Thesis. University of Montana. Missoula, MT.
- Oasis Environmental. 2011. Benthic macroinvertebrate recolonization in the varial zone of the Kootenai River, Montana. Bigfork, MT. Prepared for Montana Fish, Wildlife, and Parks. 79 p.
- Zillges, G.F. Jr. 1971. The aquatic insects of Bluewater Creek, Montana, above and below an area of intensive agriculture. M.Sc. Thesis. Bozeman, MT: Montana State University. 29 p.
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Citation for data on this website:
Hagen's Small Minnow Mayfly — Diphetor hageni. Montana Field Guide. Montana Natural Heritage Program. Retrieved on November 29, 2025, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=IIEPH63010