Paradelia arctica (Ringdahl, 1933)

Michelsen, Verner, 2007, Taxonomic review of Eurasian Paradelia Ringdahl (Diptera: Anthomyiidae) with descriptions of two new species, Zootaxa 1592, pp. 1-44 : 19

publication ID

https://doi.org/ 10.5281/zenodo.178592

publication LSID

lsid:zoobank.org:pub:D1A14994-A95A-4B0E-B52F-9DAC4DDCBFDC

DOI

https://doi.org/10.5281/zenodo.6236421

persistent identifier

https://treatment.plazi.org/id/0B722F74-FF96-FFEB-FF49-FCFC475CBB69

treatment provided by

Plazi

scientific name

Paradelia arctica (Ringdahl, 1933)
status

 

14. Paradelia arctica (Ringdahl, 1933) View in CoL

Figs. 78–81 View FIGURES 78 – 81 .

Hylemyia (Nupedia) intersecta var. arctica Ringdahl, 1933b: 16 View in CoL , 17.

Pseudonupedia arctica ( Ringdahl) ; Ringdahl 1959: 293.

Pseudonupedia intersecta arctica (Ringdahl) ; Hennig 1972: 439, plate figs. 703, 712. Paradelia arctica (Ringdahl) View in CoL ; Griffiths 1987: 800, figs. 956, 959, 964.

For further references and synonymy see Hennig (1972: 439) and Griffiths (1987: 800).

Taxonomic remarks. The present taxon was earlier synonymized with the widespread, variable P. intersecta , but Griffiths (1987) concluded, based on a morphometric study of the outer lamellae of male sternite V, that two distinct species are involved.

Description. In most respects agreeing closely with P. intersecta , but differs as follows:

Smaller, wing length 2.8–4.2mm vs. 3.6–5.1mm. Calyptrae invariably whitish, much paler than darkly infuscated wing base. Knob of haltere brownish infuscated. Arista short, thickened on more than basal third, very short-pubescent.

Male. Parafrontals at narrowest part of frons separated by linear frontal vitta. Outer lamellae of sternite V ( Figs. 78, 79 View FIGURES 78 – 81 ) with a lower length/width ratio. Hypopygium ( Figs. 80, 81 View FIGURES 78 – 81 ) rather inseparable from that of P. intersecta .

Female. Head and body darker, olive grey to olive brown dusted. Dark brown mesonotal stripes broader and three in number. Knob of haltere infuscated with brown.

Material examined. NORWAY [ ZMUC]: from high altitude sites (> 1000m) in the provinces of Hedmark (north), Oppland (north) and Sør-Trøndelag (inner). SWEDEN [ MZLU]: only from the northern provinces Lule Lappmark and Torne Lappmark.

Numerous specimens further seen from all faunal districts of Greenland ( Michelsen 2006b).

Distribution. Apparently, P. arctica replaces P. intersecta above the tree line in all arctic and elevated northern landmasses of Eurasia and North America, but data are currently lacking for many parts of the Palaearctic Region including Russia.

ZMUC

Zoological Museum, University of Copenhagen

MZLU

Lund University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Anthomyiidae

Genus

Paradelia

Loc

Paradelia arctica (Ringdahl, 1933)

Michelsen, Verner 2007
2007
Loc

Pseudonupedia intersecta arctica

Griffiths 1987: 800
Hennig 1972: 439
1972
Loc

Pseudonupedia arctica (

Ringdahl 1959: 293
1959
Loc

Hylemyia (Nupedia) intersecta

Ringdahl 1933: 16
1933
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