Stempellinella edwardsi Spies et Saether, 2004

Orel, Oksana V., 2023, Stempellinella Brundin, 1947 (Diptera: Chironomidae) from Eastern Siberia and the Russian Far East, with the description of new species, Zootaxa 5380 (4), pp. 341-360 : 354-356

publication ID

https://doi.org/ 10.11646/zootaxa.5380.4.3

publication LSID

lsid:zoobank.org:pub:34622C76-3DB5-4A47-ACA0-ED3DE6A6F909

DOI

https://doi.org/10.5281/zenodo.10250398

persistent identifier

https://treatment.plazi.org/id/03B7900A-FF82-0219-FF44-FD71FAE5FE58

treatment provided by

Plazi

scientific name

Stempellinella edwardsi Spies et Saether, 2004
status

 

Stempellinella edwardsi Spies et Saether, 2004 View in CoL

Figs 41–46 View FIGURES 41–46 .

Tanytarsus (Stempellina) minor Edwards, 1929: 420 View in CoL ; Goetghebuer 1937 –1954; Brundin 1947, 1948; Langton 1991; Cranston et al. 1989: 489, Fig. 10.63 A, B View FIGURES 8–16 ; Langton & Visser 2003.

Tanytarsus (Stempellina) minusculus Edwards, 1929: 417 View in CoL .

Stempellinella edwardsi Spies et Saether, 2004: 65 View in CoL ; Stempellinella sp. 1 Makarchenko et Orel, 2023: 145.

Material examined. RUSSIA: AMUR REGION, Zeya reservoir, stream near the Shirokovskaya River , 02.vii.2013, 5 males, leg. T. Tiunova; Zeya reservoir, 63 km (right side of the reservoir), 06.vii.2013, 24 males, leg. T. Tiunova ; MAGADAN REGION, Big Darpir Lake (eastern shore), 05.viii.2018, 1 male, leg. E. Khamenkova ; SAKHALIN REGION, Sakhalin Island, Chaivo Bay, Sandy Lake , 28.viii.2001, 1 male, leg. T. Tiunova; Noglinsky district, Noglinsky district , the vicinity of the village of Val, Rybnoye Lake , 3–5.viii.2003, 10 males, leg. E. Makarchenko ; Okhinsky district, a lake 15 km east of Piltun village , 6–7.viii.2003, 1 male, leg. E. Makarchenko.

Diagnosis. Male: yellowish brown coloured species, with wing 1.10–1.46 mm long. AR 1.06–1.37; ultimate flagellomere 336–400 μm; length of 2–4 flagellomeres of maxillary palpomeres 279–315 μm; frontal tubercles conical, 12–18 μm long. LR PI 1.26–1.53; combs of mid and hind tibiae with 2 spurs. T-shaped anal tergite band; 1–2 lateral setae present; anal point with 25–45 small spinulae at base; 3–5 small median tergite setae close to anal point; superior volsella oval; median volsella strongly curved, without microtrichia, with simple lamellae, stem 30–39 μm long.

Redescription. Adult male (n=6). General colour yellowish brown. Total length 1.5–1.7 mm; total length/wing length 1.15–1.35.

Head ( Fig. 41 View FIGURES 41–46 ). Frontal tubercles conical, 12–16 μm long. Temporal setae 3–8. Clypeus with 7–14 setae. Maxillary palp yellowish, 279–315 μm long; lengths of last 4 palpal segments (μm): 21–33, 69–87, 78–90, 102–111. Palp length/head width 1.20–1.37. Scapus brown, flagellomeres (1–10) dark-brown, 616–720 μm long. AR 1.20–1.37. Ultimate flagellomere 336–400 μm long. Antenna length/palp length 2.17–2.39.

Thorax. Ground colour of scutum yellowish, mesonotal strips brown or dark brown. Ac 9–12, Dc 7–8, Pa 1. Scutellum yellowish or yellowish brown, with 6–10 setae. Postnotum dark brown. Wing ( Fig. 42 View FIGURES 41–46 ) length 1.26–1.46 mm. R, R 1 with 35–41 setae, R 4+5 with 18–25 setae, Cu 1 with 10–12 setae, M 3+4 with 13–20 setae, Cu with 9–18 setae, An with 14–22 setae. VR 1.36–1.58.

Legs ( Table 6 View TABLE 6 ). Legs yellowish. Fore tibia with 12–15 mm long spur; terminal combs of Ti 2 and Ti 3 with spurs, 15 μm long. BR 1 3.0, BR 2 2.9–5.0, BR 3 6.4. Sensilla chaetica on Ta 1 P 2 absent.

Abdomen. Yellowish brown.

Hypopygium ( Figs 43–46 View FIGURES 41–46 ). Anal tergite bands T-type; 3–5 median setae at anal point base; 1–2 lateral setae; small microtrichia-free areas present on each side of anal point base. Anal point 30–39 μm long, wide at about apical 1/3, apically thin and pointed; 25–45 small spinulae between anal crests; 8–10 lateral setae at anal point base. Gonocoxite 84–99 μm long; with 5–6 setae along inner margin. Width of transverse sternapodeme 45–54 μm. Phallapodeme 66 μm long. Superior volsella oval, 30–36 μm long, with 3–4 dorsal (sometimes situated on tubercle) and 3 median setae, without microtrichia. Digitus absent. Stem of median volsella 30–39 μm long, total length 60–69 μm, median volsella strongly curved posteriorly with simple lamellae, microtrichia absent. Inferior volsella 60–72 mm long, apically club-shaped, with 9–12 distal setae. Gonostylus 51–60 μm long, with 4–5 setae in apical part and 1 apical seta. HR 1.40–1.76.

Female, pupa and larva described by Ekrem 2007: 1407, Figs 13, 14 View FIGURES 8–16 .

Remarks. When comparing the morphometric data of males described in Ekrem (2007) and our data, no significant differences were found (see Table 2 View TABLE 2 ).

Distribution. Widely distributed in Europe, Eastern Palearctic and Nearctic (Saether & Spies 2004).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Stempellinella

Loc

Stempellinella edwardsi Spies et Saether, 2004

Orel, Oksana V. 2023
2023
Loc

Stempellinella sp. 1

Makarchenko, E. A. & Orel, O. V. 2023: 145
2023
Loc

Tanytarsus (Stempellina) minor

Cranston, P. S. & Dillon, M. E. & Pinder, L. C. V. & Reiss, F. 1989: 489
Edwards, F. W. 1929: 420
1929
Loc

Tanytarsus (Stempellina) minusculus

Edwards, F. W. 1929: 417
1929
Loc

Stempellinella edwardsi

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