Procladius fimbriatus Wulker 1959

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author Brodin, Yngve
author_facet Brodin, Yngve
contents <p><b><i>Procladius fimbriatus</i> Wülker, 1959</b></p><p><i>Procladius fimbriatus</i> Wülker, 1959 — Wülker (1959), Finland, adult male, adult female, pupa, description, illustrations. <i>Procladius fimbriatus</i> Wülker, 1959 — Langton & Visser (2003), Finland, pupa, illustration.</p><p><i>Procladius fimbriatus</i> Wülker, 1959 — Langton <i>et al</i>. (2013), Norway, pupa, key, illustration.</p><p><b>Material examined (</b>n = 8). FINLAND, 1 adult male (Holotype of <i>P. fimbriatus</i>, ZSMG), Lake Saanajärvi, 69.05°N 20.88°E, 679 m a.s.l., ‒4 °C m.a.t., viii.1956, leg. W. Wülker; 1 adult male (Paratype of <i>P. fimbriatus</i>, ZSMG), Lake Saanajärvi, 69.05°N 20.88°E, 679 m a.s.l., ‒4 °C m.a.t., viii.1956, leg. W. Wülker; 1 adult male (MZHF), Lake Ala-Kilpisjärvi, 68.95°N 20.92°E, 473 m a.s.l., ‒2 °C m.a.t., 25.viii.1983, leg. J. Tuiskunen; 2 adult males, Lake Kilpsiärvi, Saana, 69.02°N 20.84°E, 491 m a.s.l., ‒2 °C m.a.t., 16.vii‒24.viii.2007.— SWEDEN, 1 adult male (ZSMG), Abisko district, lake at stream draining, 68.3°N 18.8°E, 410 m a.s.l., ‒1 °C m.a.t., 26.vi.1958, leg. D. R. Oliver; 2 adult males (NHRS), Lake Sitasjaure, 67.87°N 17.61°E, 613 m a.s.l., ‒3 °C m.a.t., 7.viii.1992, leg. Y. Brodin.</p><p><b>Diagnostic characters.</b> Figs. 20, 47‒49, key couplet 2. The female-like male antenna with its low antennal ratio (AR) and reduced plume separates <i>P. fimbriatus</i> from all other known species of <i>Procladius</i>. The species can readily be separated also from other species of <i>Procladius</i> in Europe and North America by several additional characters although the gonostylus process GspR overlaps that of six other species of <i>Procladius</i> present in Europe.</p><p>Absence of any signs of parasitism, e.g. by nematodes, in the body of all eight studied specimens suggest that <i>P. fimbriatus</i> is a valid species and not an intersex which also may have female-like antenna but normal male genitalia (Wülker 1959; Aagaard 1974). Wülker, who first described <i>P. fimbriatus</i>, was a specialist in parsitism in Chironomidae.</p><p>The adult female and pupal exuvia have been described. The larva is not known. No barcoded specimens are known.</p><p><b>Geographical distribution and ecology.</b> All findings of <i>P. fimbriatus</i> are from northern regions of Norway, Sweden and Finland, at 68‒ 70°N and altitude 150‒680 m above sea level. All six sites with findings of adults are above the tree limit in the taiga with a subarctic climate of +1 to ‒4 °C mean annual temperature and ice cover on lakes for 7‒10 months annually.</p><p>Pupal exuviae and adults of <i>P. fimbriatus</i> have been found in or close to ultraoligotrophic or oligotrophic clearwater lakes and tarns without or with very sparse vegetation. One finding is close to a stream. Adults have been found from mid-June to late August. Larvae and larval habitats are unknown.</p><p>Countries with records of <i>P. fimbriatus</i> in Europe are Finland, Norway and Sweden.</p><p><b>References.</b> Langton & Visser 2003; Langton <i>et al</i>. 2013; Paasivirta 2012; Sorvari <i>et al</i>. 2000; Tuiskunen & Lindeberg 1986; Wülker 1959.</p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_14953835
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publishDate 2025
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spellingShingle Procladius fimbriatus Wulker 1959
Brodin, Yngve
Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Procladius
Procladius fimbriatus
<p><b><i>Procladius fimbriatus</i> Wülker, 1959</b></p><p><i>Procladius fimbriatus</i> Wülker, 1959 — Wülker (1959), Finland, adult male, adult female, pupa, description, illustrations. <i>Procladius fimbriatus</i> Wülker, 1959 — Langton & Visser (2003), Finland, pupa, illustration.</p><p><i>Procladius fimbriatus</i> Wülker, 1959 — Langton <i>et al</i>. (2013), Norway, pupa, key, illustration.</p><p><b>Material examined (</b>n = 8). FINLAND, 1 adult male (Holotype of <i>P. fimbriatus</i>, ZSMG), Lake Saanajärvi, 69.05°N 20.88°E, 679 m a.s.l., ‒4 °C m.a.t., viii.1956, leg. W. Wülker; 1 adult male (Paratype of <i>P. fimbriatus</i>, ZSMG), Lake Saanajärvi, 69.05°N 20.88°E, 679 m a.s.l., ‒4 °C m.a.t., viii.1956, leg. W. Wülker; 1 adult male (MZHF), Lake Ala-Kilpisjärvi, 68.95°N 20.92°E, 473 m a.s.l., ‒2 °C m.a.t., 25.viii.1983, leg. J. Tuiskunen; 2 adult males, Lake Kilpsiärvi, Saana, 69.02°N 20.84°E, 491 m a.s.l., ‒2 °C m.a.t., 16.vii‒24.viii.2007.— SWEDEN, 1 adult male (ZSMG), Abisko district, lake at stream draining, 68.3°N 18.8°E, 410 m a.s.l., ‒1 °C m.a.t., 26.vi.1958, leg. D. R. Oliver; 2 adult males (NHRS), Lake Sitasjaure, 67.87°N 17.61°E, 613 m a.s.l., ‒3 °C m.a.t., 7.viii.1992, leg. Y. Brodin.</p><p><b>Diagnostic characters.</b> Figs. 20, 47‒49, key couplet 2. The female-like male antenna with its low antennal ratio (AR) and reduced plume separates <i>P. fimbriatus</i> from all other known species of <i>Procladius</i>. The species can readily be separated also from other species of <i>Procladius</i> in Europe and North America by several additional characters although the gonostylus process GspR overlaps that of six other species of <i>Procladius</i> present in Europe.</p><p>Absence of any signs of parasitism, e.g. by nematodes, in the body of all eight studied specimens suggest that <i>P. fimbriatus</i> is a valid species and not an intersex which also may have female-like antenna but normal male genitalia (Wülker 1959; Aagaard 1974). Wülker, who first described <i>P. fimbriatus</i>, was a specialist in parsitism in Chironomidae.</p><p>The adult female and pupal exuvia have been described. The larva is not known. No barcoded specimens are known.</p><p><b>Geographical distribution and ecology.</b> All findings of <i>P. fimbriatus</i> are from northern regions of Norway, Sweden and Finland, at 68‒ 70°N and altitude 150‒680 m above sea level. All six sites with findings of adults are above the tree limit in the taiga with a subarctic climate of +1 to ‒4 °C mean annual temperature and ice cover on lakes for 7‒10 months annually.</p><p>Pupal exuviae and adults of <i>P. fimbriatus</i> have been found in or close to ultraoligotrophic or oligotrophic clearwater lakes and tarns without or with very sparse vegetation. One finding is close to a stream. Adults have been found from mid-June to late August. Larvae and larval habitats are unknown.</p><p>Countries with records of <i>P. fimbriatus</i> in Europe are Finland, Norway and Sweden.</p><p><b>References.</b> Langton & Visser 2003; Langton <i>et al</i>. 2013; Paasivirta 2012; Sorvari <i>et al</i>. 2000; Tuiskunen & Lindeberg 1986; Wülker 1959.</p>
title Procladius fimbriatus Wulker 1959
topic Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Procladius
Procladius fimbriatus
url https://doi.org/10.5281/zenodo.14953835