Pseudochironomus

Malloch, 1915

nonbiting midge

Species Guides

1

Pseudochironomus is a of nonbiting midges in the Chironomidae, containing more than 20 described distributed across the Americas and Europe. The genus belongs to the tribe Pseudochironomini within Chironominae. Larvae are aquatic and have been studied for their growth responses to diet quality and thermal conditions.

Pseudochironomus by (c) Catherine C. Galley, some rights reserved (CC BY), uploaded by Catherine C. Galley. Used under a CC-BY license.Pseudochironomus by (c) Catherine C. Galley, some rights reserved (CC BY), uploaded by Catherine C. Galley. Used under a CC-BY license.Pseudochironomus by (c) Catherine C. Galley, some rights reserved (CC BY), uploaded by Catherine C. Galley. Used under a CC-BY license.

Pronunciation

How to pronounce Pseudochironomus: //ˌsjuːdoʊˈkɪrənəməs//

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Habitat

Aquatic; larvae occur in freshwater environments including streams, cold seeps, main channels, and side pools.

Distribution

Americas and Europe; specific records from Colombia (Cundinamarca), Denmark, Norway, and Sweden.

Diet

Larvae feed on , including diatoms and algal detritus. In laboratory studies, Pseudochironomus richardsoni has been reared on Spirulina, Chlorella, and Scenedesmus.

Life Cycle

Holometabolous with larval and pupal stages; larval development rate varies with temperature and food quality.

Behavior

Growth and developmental rates increase with temperature and are highest on high-quality algal diets such as diatoms. Thermal fluctuations can reduce growth compared to constant warm temperatures.

Ecological Role

Primary consumer in aquatic ; contributes to secondary production in algal mat .

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