Paratanytarsus tenuis (Meigen 1830)

Wang, Xinhua & Guo, Yuhong, 2005, Paratanytarsus Thienemann & Bause from China (Diptera: Chironomidae: Tanytarsini), Zootaxa 940, pp. 1-15: 8-9

publication ID

10.5281/zenodo.171163

publication LSID

lsid:zoobank.org:pub:C7C07623-B91D-425F-9C09-7D9E87F56815

persistent identifier

http://treatment.plazi.org/id/03F287FE-FFA3-FFBE-FEBA-FC6DFEC96551

treatment provided by

Plazi

scientific name

Paratanytarsus tenuis (Meigen 1830)
status

 

Paratanytarsus tenuis (Meigen 1830)  ( Fig. 5View FIGURES 5 – 9. 5)

Chironomus tenuis Meigen 1830: 255 

Chironomus affinis Walker 1856: 162 

Chironomus perlevis Walker 1856: 162 

Paratanytarsus unicolor Kieffer 1922: 95 

Tanytarsus similis Goetghebuer 1928: 139 

Paratanytarsus tenuis (Meigen) Brundin 1947: 77  (Figs. 115, 115 a); Reiss 1968: 218; 1971: 208; Reiss & Säwedal 1981: 102 (Fig. 15); Wang 2000: 641.

Material examined: 4 males (BDN 0 5090, 0 5093, 0 7655, 07656) Qinghai Province, Menyuan County, Fenglikou (37 º 22 'N, 101 º 38 'E). 18. vii. 1989.

Diagnostic characters: Anal tergite with well developed lateral teeth. Anal tergite bands V­shaped and narrowly separated in middle. Anal tergite with 2 pairs of long median tergite setae. Superior volsella roughly triangular. Digitus tapering to rounded apex and extending posterior to superior volsella. Median volsella distally with spatulate lamellae. Inferior volsella with distal part developed as club­shaped swelling and divided into 2 rounded lobes.

Male imago (n = 4)

Total length 3.44–356, 3.50 mm; wing length 2.24–2.44, 2.38 mm. Total length/wing length 1.42–1.54, 1.47; wing length/length of profemur 2.42–2.57, 2.51. Ground coloration yellowish brown and thorax with brown vittae; antenna and legs brown; abdomen yellowish brown.

Head: Frontal tubercles cylindrical, about 10–16 µm long. AR (n = 3) 1.23–1.85, 1.42; ultimate flagellomere 688–740, 703 µm long. Temporal setae (n = 3) including 3 –5, 4 inner verticals, 2 –4, 3 outer verticals and 2 –4, 3 postorbitals. Clypeus with 10 –14, 12 setae. Tentorium (n = 3) 120–136, 126 µm long, width 39 –44, 42 µm. Palpomere lengths (in µm): 30 –40, 35; 52 –60, 57; 132–148, 139; 128–142, 134; 168–218, 199.

Wing: VR 1.06–1.18, 1.13 and Cu length 1020 –1160, 1085 µm.

Thorax: (n = 3) Acrostichals 10 –12, 11; dorsocentrals 9 –11, 10; scutellars 0–4, 1; prealars 0–1, 1.

Legs: Front tibial spur 18 µm long. Spurs of middle tibia 25 –30, 28 and 24 –30, 27 µm, of hind tibia only 1 comb with spur 26 –33, 30µm long. Combs of middle tibia composed of 16 –21, 19 and 14 –18, 16 teeth, of hind tibia 24 –28, 26 and 14 –18, 17 teeth. Lengths (in µm) and proportion of legs are given in Table 5.

Hypopygium ( Fig. 5View FIGURES 5 – 9. 5): Anal tergite with well developed lateral teeth. Anal tergite bands V­shaped and narrowly separated in middle. Anal tergite with 2 pairs of long median tergite setae. Anal point broad, about 26 –36, 32 µm long, with a pair of anal crests and 4 – 8, 6 basal setae. Phallapodeme 60 –90, 69 µm long. Transverse sternapodeme 26 –38, 33 µm long, with oral projections. Gonocoxite 148–165, 159 µm long. Superior volsella roughly triangular, with 4 –7, 6 dorsal and 4 –6, 5 inner surface setae, and 1 seta at base arising on ventral side. Digitus tapering to rounded apex and extending posterior to superior volsella. Median volsella 68 –90, 79 µm long, its lateral margin without lamellae, inner margin with about 4 –7, 5 setiform lamellae, apically with bundles of spatulate lamellae. Inferior volsella 130–140, 136 µm long, apical divided into 2 lobes and with about 18 –24, 22 setae. Gonostylus 160–180, 171 µm long. HR 0.87–1.03, 0.93; HV 1.98–2.20, 2.05.

Remarks: The shape of the superior and median volsella has some variation. The outer margin is shorter than the inner margin of the superior volsella in a specimen from China, whereas it is subequal in specimens described by Reiss & Säwedal (1981) from Mongolia and Greenland. The length and curvature of the median volsella from Chinese material are shorter and less than that described by Reiss & Säwedal (1981).

Distribution: The species is widely distributed in the Palaearctic and Nearctic Regions.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Paratanytarsus

Loc

Paratanytarsus tenuis (Meigen 1830)

Wang, Xinhua & Guo, Yuhong 2005

2005
Loc

Paratanytarsus tenuis (Meigen) Brundin 1947 : 77

Wang 2000: 641
Reiss 1981: 102
Reiss 1968: 218Brundin 1947: 77

1968
Loc

Tanytarsus similis

Goetghebuer 1928: 139

1928
Loc

Paratanytarsus unicolor

Kieffer 1922: 95

1922
Loc

Chironomus affinis

Walker 1856: 162

1856
Loc

Chironomus perlevis

Walker 1856: 162

1856