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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Mystery Creek # 256 in Idaho

Stream photos

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Tricorythodes (Trico) Mayfly NymphTricorythodes (Trico) Mayfly Nymph
Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington
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27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Caddisfly Family Molannidae

See Molanna for details about this relatively unimportant family. It is the only species widespread in America.

Where & when

In 361 records from GBIF, adults of this family have mostly been collected during July (34%), June (33%), August (20%), and May (7%).

In 354 records from GBIF, this family has been collected at elevations ranging from -30 to 10600 ft, with an average (median) of 728 ft.

Family Range
Map of specific collection sites

Specimens of the Caddisfly Family Molannidae

1 Larva
Molanna (Gray Checkered Sedge) Caddisfly Larva
4 Pictures
Dorsal view of a Molanna (Molannidae) (Gray Checkered Sedge) Caddisfly Larva from unknown in Wisconsin
Added by Troutnut on January 25, 2006
Collected February 29, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006

Start a Discussion of Molannidae

References

Caddisfly Family Molannidae

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Trichoptera (Caddisflies)
  5. » Family Molannidae
Genus in Molannidae
MolannaGray Checkered Sedges
1
4
Genus in Molannidae: Molanna
1 genus (Molannodes) isn't included.
Family Range
Map of specific collection sites
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