Orthocladius (Euorthocladius) ashei

Saether, Ole A., 2005, A new subgenus and new species of Orthocladius van der Wulp, with a phylogenetic evaluation of the validity of the subgenera of the genus (Diptera: Chironomidae), Zootaxa 974, pp. 1-56 : 48-49

publication ID	https://doi.org/ 10.5281/zenodo.171314
DOI	https://doi.org/10.5281/zenodo.6266210
persistent identifier	https://treatment.plazi.org/id/03BF87F4-FF9A-2564-FE9E-FCE10627FDA6
treatment provided by	Plazi
scientific name	Orthocladius (Euorthocladius) ashei
status

Treatment

Orthocladius (Euorthocladius) ashei View in CoL

( Figs. 56–60 View FIGURES 51 – 65 , 68 View FIGURES 66 – 69 )

Orthocladius (Euorthocladius) ashei Soponis, 1990: 17 View in CoL .

Material: examined: NORWAY: Hordaland, Vaksdal, Ekse, paratype ɗ reared from larva, 11 vi 1979, E. Willassen; same locality, mature ɗ pupa, mature Ψ pupa, 7 vi 1988, Ø. A. Schnell; same locality, 1 ɗ, 1 Ψ, 9 vii 1979 & 24 vi 1980, G. A. Halvorsen; Hordaland, Vaksdal, Fosse at Storeglupen, 6 pupal exuviae, 6 vi 1985, Ø. A. Schnell; Hordaland, Vaksdal, Storelva, 1 pupal exuviae, 9 vi 1986, Ø. A. Schnell; Hordaland, Årdal, Haereidelva, 1 pupal exuviae, 2 vi 1986, Ø. A. Schnell (all ZMBN).

The male imago, pupa, and larva were described by Soponis (1990). The female, however, remained undescribed.

Female imago (n = 1–2)

Total length 2.91 mm. Wing length not measurable.

Head. AR 0.65–0.74. Flagellomere lengths (in µm): 60–68, 34–41, 34–41, 34–45, 105– 116. Coronal suture 0–60 µm long. Temporal setae 8, consisting of 2–4 inner, 4–6 outer verticals, and no postorbitals. Clypeus with 10–12 setae . Tentorium 146 µm long, 26 µm wide. Stipes 98 µm long, 26 µm wide. Palpomere lengths (in µm):41, 45, 79, 56–79, 83– 109.

Thorax. Antepronotum with 4–6 setae . Dorsocentrals 8–15, acrostichals not observed, prealars 34, no supraalar. Scutellum with 10–16 setae .

Wing. Brachiolum with 1 seta; R with 7–8 setae , R1 with 4–5, R4+5 with 4–5 setae . Squama with 14–16 setae .

Legs. Sensilla chaetica 10 on ta1 of mid leg, 4 on ta1 of hind leg. Other details not measurable.

Abdomen. Number of setae on tergites I–VIII as: 25–51, 21–42, 18–32, 14–25, 13–25, 8–22, 14–22, 14–19; on sternites I–VIII: 0, 0–2, 2–5, 4–8, 5–10, 6–15, 6–14, 8–9.

Genitalia ( Figs. 56–60 View FIGURES 51 – 65 ). Tergite IX strongly divided with margins clearly delimited, with 18–22 setae . Gonocoxite with 7–9 setae including 3 short setae . Cercus 109–128 µm long. Seminal capsule ovoid with 13–15 µm long, tapered, sclerotised neck; 49–71 µm long; anterior 56 µm more darkly sclerotised; 34–66 µm wide. Spermathecal ducts with loops and separate openings. Notum 86–98 µm long.