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Montana Field Guide

Montana Field Guides

A Mayfly - Timpanoga hecuba


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:


 

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General Description
This species is associated with medium sized, moderate gradient, cool-coldwater streams and rivers with cobble riffles and some gravels and silted pool areas. Robust slightly flattened mayfly, with long hairs along the legs which collect with detritus making them look fuzzy and larger in situ.

Diagnostic Characteristics
Robust slightly flattened mayfly, with long hairs along the legs which collect with detritus making them look fuzzy and larger in situ.

Summary of Observations Submitted for Montana
Number of Observations: 74

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Relative Density

Recency

 

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



Habitat
This species is associated with medium sized, moderate gradient, cool-coldwater streams and rivers with cobble riffles and some gravels and silt pool areas..

Food Habits
This species is a scraper of algae and collector of detritus

Threats or Limiting Factors
All forms of stream quality degradation pose potential threats. These include siltation; pollution from agricultural and industrial waste; and hydrological alteration from drainage, dams, or withdrawal of excess water for human use.

References
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Citation for data on this website:
A Mayfly — Timpanoga hecuba.  Montana Field Guide.  .  Retrieved on , from