Nemotaulius hostilis

(Hagen, 1873)

Inimical Northern Caddisfly

Nemotaulius hostilis is a northern caddisfly in the Limnephilidae, found in North America. It inhabits permanent freshwater pools and exhibits a with emerging in late May. The is notable for its use of in mate attraction and a distinctive reproductive phenomenon involving mass liquefaction. Larvae build cases using plant material and grow at rates comparable to other detritivorous in permanent waters.

Nemotaulius hostilis 87625267 by Allan Harris. Used under a CC0 license.Nemotaulius hostilis 62391534 by Susan Blayney. Used under a CC BY 4.0 license.Nemotaulius hostilis 82067659 by Jake McCumber. Used under a CC BY-SA 4.0 license.

Pronunciation

How to pronounce Nemotaulius hostilis: /nɛmoʊˈtɔːliəs hoʊˈstɪlɪs/

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Habitat

Permanent freshwater pools and ponds. In southern Alberta, Canada, it has been documented in a permanent pond with fluctuating water levels.

Distribution

North America; specifically recorded from southern Alberta, Canada, and Vermont, USA.

Seasonality

emerge primarily in late May, with over 75% of occurring within a single week. Larvae are present year-round, entering the water in August after hatching.

Diet

Larvae are detritivorous , feeding on decaying plant material.

Life Cycle

. emerge in late May and undergo a reproductive of slightly over one month. Females oviposit on riparian vegetation; larvae hatch in August and immediately enter the water. Larvae overwinter and grow continuously throughout the year.

Behavior

Larvae construct portable cases using plant material. use extractable for mate attraction. Females produce masses that undergo liquefaction, a distinctive phenomenon in this .

Ecological Role

Larvae function as detritivorous in freshwater , processing decaying plant material.

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