Orthocladius (Euorthocladius) rivicola Kieffer

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 : 49-50

publication ID

https://doi.org/ 10.5281/zenodo.171314

DOI

https://doi.org/10.5281/zenodo.6266212

persistent identifier

https://treatment.plazi.org/id/03BF87F4-FF85-2565-FE9E-FDEC064CFC47

treatment provided by

Plazi

scientific name

Orthocladius (Euorthocladius) rivicola Kieffer
status

 

Orthocladius (Euorthocladius) rivicola Kieffer View in CoL

( Figs. 61–65 View FIGURES 51 – 65 , 69 View FIGURES 66 – 69 )

Orthocladius rivicola Kieffer, 1911: 181 View in CoL .

Orthocladius fusiformis Goetghebuer , in Goetghebuer & Dorier 1939: 30. Euorthocladius rivicola Kieffer View in CoL ; Thienemann 1936: 191.

Orthocladius (Euorthocladius) rivicola Kieffer View in CoL ; Brundin 1956: 101, Soponis 1990: 26, pro parte.

Material: examined: NORWAY: Hordaland, Vaksdal, Ekse, 4 ɗ reared from larva, 2 Ψ reared from larva, 3 ɗ reared from pupa, 10 mature ɗ pupa, mature Ψ pupa, 21 vi, 11 vii, & 9 vii 1970, E. Willassen; same locality, 3 ɗ 1976, 8–15 vii & 5–10 viii 1976, T. Andersen; same locality, 8 pupal exuviae, 9 vi 1987, Ø. A. Schnell; same locality, ɗ reared from larva, 5 pupal exuviae, 7 vi 1988, Ø. A. Schnell; Hordaland, Vaksdal, Storelva, 6 pupal exuviae, 9 vi 1986, Ø. A. Schnell; Buskerud, Hol, Ustaoset, Smettbakgrovi stream below waterfall, 1 pupal exuviae, 27 vii 1993, P. H. Langton & O. A. Saether (all ZMBN). CAN­ ADA: Alberta, Waterton National Park, Rows Creek above highway, ɗ reared from pupa, 21 vii 1967, A. L. Hamilton & O. A. Saether ( ZMBN). USA: Arizona, Summerhaven on Mt. Lemmon near Tucson, Sabino Creek, ɗ reared from pupa, ii 1986, Doughman ( ZMBN).

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

Female imago (n =1–2)

Total length 2.36 mm. Wing length 1.81 mm. Total length/wing length 1.31. Wing length/length of profemur 3.20.

Head. AR 0.62–0.65. Flagellomere lengths (in µm): 53–68, 34–38, 34–48, 34–41, 86– 110. Coronal suture 30–38 µm long. Temporal setae 11–13, consisting of 3–5 inner, 7 outer verticals, and 1 postorbital. Clypeus with 8–11 setae . Tentorium 135 µm long, 26 µm wide. Stipes 135 µm long, 26 µm wide. Palpomere lengths (in µm): 30–38, 41–60, 68–98, 60–79, 83–116.

Thorax. Antepronotum with 4–6 setae . Dorsocentrals 7, acrostichals about 2, prealars 3–5, no supraalar. Scutellum with 11–13 setae .

Wing. Brachiolum with 1 seta; R with 8–13 setae , R1 with 4–8, R4+5 with 6–10 setae . Squama with 14 to about 24 setae .

Legs. Spur of front tibia 49 µm long, spurs of middle tibia 26 and 21 µm long, of hind tibia 56 and 23 µm long. Width at apex of front tibia 39 µm, of and middle tibia 41 µm, of hind tibia 45 µm. Pseudospurs present on ta1 and ta2 of mid leg and hind leg, 23–27 µm long. Sensilla chaetica 9 at 0.07–0.32 on ta1 of mid leg, 2 at 0.07–0.15 on ta1 of hind leg. Lengths (in µm) and proportions of legs:

Abdomen. Tergites VIII with 12–20 setae , sternite VIII with 15–29 setae .

Genitalia ( Figs. 61–65 View FIGURES 51 – 65 ). Tergite IX strongly divided with margins clearly delimited, with 16 setae . Gonocoxite with 7–8 long and 3–5 short setae . Cercus 105–120 µm long. Seminal capsule ovoid with 15 µm long, tapered, sclerotised neck; 64–75 µm long; anterior 51–64 µm darker sclerotised; 54–60 µm wide. Spermathecal ducts meandering with separate openings. Notum 120–135 µm long.

ZMBN

Museum of Zoology at the University of Bergen, Invertebrate Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Orthocladius

Loc

Orthocladius (Euorthocladius) rivicola Kieffer

Saether, Ole A. 2005
2005
Loc

Orthocladius (Euorthocladius) rivicola

Soponis 1990: 26
Brundin 1956: 101
1956
Loc

Orthocladius fusiformis

Goetghebuer 1939: 30
1939
Loc

Orthocladius rivicola

Kieffer 1911: 181
1911
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