Paracricotopus uliginosus sensu Saether 1980
Creators: name: Namayandeh, Armin
name: Ghaderi, Edris
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Paracricotopus
Paracricotopus uliginosus

description: Paracricotopus uliginosus (Brundin, 1947) sensu Saether (1980)
Figs. 5 & 7K
Material examined. 1 Male; Norway, ST, Roros kommune Sorlende Kildebekk A-2; 62.68993˚N, 11.83209˚E; 11–22.vi.2006; leg. O. Hanssen; det. E. Stur, 2008; SO107; dep. NTNU. 1 Male; Norway, Sør-Trøndelag, Røros: Slendet, kilde B-1, 786 moh, 62.6889˚N, 11.8316˚E; 11–22.vi.2006; leg. O. Hanssen; det. E. Stur, 2009; SOE287; dep. NTNU. 3 Males; same except, 13.vi.–02.vii.2007; leg. O. Frengen; SOE187, SOE188, SOE189; dep. NTNU. 1 Male; Norway, ST, Brekken kommune Sølende, Kilde A-1; 19–30.vii.2005; leg. Aagaard et al.; det. E. Stur, 2008; SO22; dep. NTNU.
Diagnostic characters. The adult male of P. uliginosus can be separated from the closely related species by the combination of the following characteristics: AR 0.46–0.56; Halteres whitish, 224–240 μm long; wing with extended costa, 82–97 μm long; tergite I with 2 lateral setae, anterior basal setae, and posterior marginal setae arranged in 2 diagonal rows, with a single basal seta in row 1, and three marginal setae in row 2, tergites II – VI with 2 lateral setae and tergites VII-VIII with 3 lateral setae, anterior basal setae, and posterior marginal setae in two parallel-straight rows; anal point triangular with sharp apex, 19–26 μm long; inferior volsella a large lobe slightly curved; gonostylus with conspicuous preapical crista dorsalis.
Redescription. Male (n = 6, unless otherwise stated).
Total length 2.0–2.3, 2.2 mm. Wing length 1.3–1.5, 1.4 mm. Haltere 224–240, 234 μm long.
Coloration. Head, including antenna and thorax dark brown. Halteres whitish. Wing greyish, light. Legs light brown. Abdominal tergites brown, with the posterior half of tergites VI and VII whitish; sternites whitish grey.
Head (Fig. 5 A-B). Antenna with 13 flagellomere, last flagellomere with 8–10, 9 sensilla chaetica (Fig. 5A), 2 nd –3 rd segments each with 2 sensilla chaetica, groove starts at 4 th segment, AR 0.46–0.56, 0.51. Eyes hairy, without dorsomedial extension, temporal setae 6, including 3 frontals and 3 postoculars (n = 3). Tentorium narrow with tentorial pit close the to apex (Fig. 5B), tentorium 122–144, 133 μm long. Clypeus rectangular, 62–74, 67 μm long and 78–119, 91 μm wide, bearing 8–11, 9 setae, 45–71, 62 μm long (n = 4). Palpal segments length (in μm): 45–58, 51, 43–55, 47; 63–74, 69; 90–101, 97; 146–167, 157 (n = 5).
Thorax (Figs. 5C). Acrostichals 12–14; dorsocentrals 8; prealars 3; scutellars 7 in single row. Antepronotal lobes developed, with small gap and bearing 3 setae.
Wing (Fig. 5D). Brachiolum with 1 seta. Squama with 3–5, 4 setae. R with 2–3 setae, other veins bare. Costa extended, extension 82–97, 86 μm long. Anal lobe rounded. Microtrichia only visible at> 1000 x magnification.
Legs. Hind and mid femurs with keel. Pulvilli small. Fore tibia spur 33–42, 36 μm long, mid tibia spurs 12–16, 14 and 12–15, 13 μm long, hind tibia spurs 34–37, 36 and 11–14, 13 μm long, hind tibia comb with around 10–13, 12 spines. Lengths and proportions of legs as in Table 5.
Abdominal tergite setation (Figs. 5E & 7K). Tergites I with 2 lateral setae, anterior basal setae, and posterior marginal setae arranged in 2 diagonal rows in 1/3 format. Tergites II–VI with 2 lateral setae and tergites VII–VIII with 3 lateral setae, anterior basal setae, and posterior marginal setae in two parallel-straight rows.
Hypopygium (Fig. 5F). Anal point triangular with sharp apex, 19–26, 22 μm long and 7–17, 13 μm wide. Sternapodeme widely arched with well-reduced oral projections; sternapodeme 63–73, 69 μm long. Phallapodeme 30–41, 35 μm long. Inferior volsella, a large lobe, slightly curved, located at the mid-section of gonocoxite. Gonocoxite 123–157, 141 μm long. Gonostylus with large preapical crista dorsalis; gonostylus 66–71, 69 μm long; megaseta 6–9, 7 μm long. HR 1.8–2.4, 2.1, HV 2.9–3.4, 3.2.
Female and immatures. Unknown.
Distribution. Palearctic: Austria, Finland, France, Germany, Italy, Norway, Romania, Russia (Kaliningrad), Spain, Sweden.
description: Published as part of Namayandeh, Armin & Ghaderi, Edris, 2025, A review of Paracricotopus (Brundin, 1947), with the description of two new species and redescription of the adult males of Paracricotopus niger (Kieffer, 1913) and Paracricotopus uliginosus (Brundin, 1947) sensu Saether (1980) (Chironomidae: Diptera), pp. 138-158 in Zootaxa 5569 (1) on pages 147-149, DOI: 10.11646/zootaxa.5569.1.5, http://zenodo.org/record/14703998