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Montana Field Guide

Montana Field Guides

Montana Stone - Doroneuria theodora


Global Rank: G4
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:


 

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General Description
This species of the family Perlidae is a predaceous stonefly, eating other aquatic insects-especially midges, blackflies and small mayflies. They live on the cobbles and boulders of medium to fast flowing streams.

Summary of Observations Submitted for Montana
Number of Observations: 228

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Relative Density

Recency

 

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



Food Habits
Merritt and Cummins (1996) report that members of the families, Perlidae and Perlodidae, are largely predators eating other aquatic invertrebrates, especially Diptera (Chironomidae and Simuliidae, midges and blackflies) and Mayflies.

References
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Citation for data on this website:
Montana Stone — Doroneuria theodora.  Montana Field Guide.  .  Retrieved on , from