This prolific genus is most important in lakes, spring ponds, and beaver ponds, but some of its species do well enough in spring creeks and slow pools to be important to trout there. Where & When
» Genus Limnephilus (Summer Flier Sedges)
102 species aren't included.
Time Of Year (?):Most of these species emerge in late spring or early summer, but the adults are not mature (sort of like mayfly duns, except they don't need to molt again). They mature over the summer and mate in the fall.
Late spring through fallPreferred Waters:
Mostly stillwater; some species inhabit slow streams
According to Swisher and Richards in Selective Trout, some Limnephilus species are multibrooded (Multibrooded: Producing more than one generation in a single year. Baetis mayflies are a classic example. Insects which produce a single generation with two distinct peaks (like the June and September hatches of Isonychia bicolor mayflies) are not multibrooded, because the fall insects are offspring from the previous fall instead of the current year's spring.), with one spring generation and one fall generation. This seems very strange for a large caddisfly, and I wonder if they mistook the spring emergence and fall egg-laying for different broods.Egg-Laying BehaviorLaFontaine writes in Caddisflies that they lay their eggs "near the water."Larva & Pupa BiologyShelter Type: Thick tubes of stone, sand, bark, or wood
Pictures of 6 Caddisfly Specimens in the Genus Limnephilus:
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