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A Sand-dwelling Mayfly - Homoeoneuria alleni

  • Homoeoneuria alleni
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Species of Concern

Global Rank: G4
State Rank: S2

Agency Status
USFWS: none
USFS: none
BLM: none
CFWCS Tier: none
 

General Description
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Distribution
Montana Range




Distribution Comments
Rangewide, H. alleni is known to occur in Saskatchewan and the Intermountain West (CO, MT, NM, UT) (NatureServe 2006). In Montana, H. alleni has been reported from 2 sites on the Powder River and 1 site in the lower Yellowstone River

Observations in Montana: 5

Montana Counties
Custer, Powder River, Richland



Habitat
This species is associated with larger, perennially flowing prairie rivers with sand-gravel dominated bottoms with cobble riffles

Threats or Limiting Factors
Threats to this species include dams and diversions and excessive siltation that smothers their sandy bottom habitats

Additional Sources of Information Related to "Insects"
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Citation for data on this website:
A Sand-dwelling Mayfly — Homoeoneuria alleni.  Montana Field Guide.  Retrieved on July 4, 2009, from http://FieldGuide.mt.gov/detail_IIEPH03040.aspx
 
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