Paradelia ignotaeformis

Michelsen, Verner, 2007, Taxonomic review of Eurasian Paradelia Ringdahl (Diptera: Anthomyiidae) with descriptions of two new species, Zootaxa 1592, pp. 1-44 : 20

publication ID

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

DOI

https://doi.org/10.5281/zenodo.6236423

persistent identifier

https://treatment.plazi.org/id/0B722F74-FF97-FFEA-FF49-FF54473AB8C9

treatment provided by

Plazi

scientific name

Paradelia ignotaeformis
status

 

15. Paradelia ignotaeformis View in CoL (Schnabl in Schnabl & Dziedzicki, 1911)

Figs. 82–85 View FIGURES 82 – 85 .

Pegomyia (Anthomyia) ignotaeformis Schnabl View in CoL in Schnabl & Dziedzicki, 1911: 266, plate figs. 289, 290 [labelled ‘291’ in error], 799.

Pseudonupedia ignotaeformis (Schnabl) ; Hennig 1972: 437, plate figs. 688, 705, 708. Paradelia (Paradelia) ignotaeformis (Schnabl) View in CoL ; Griffiths 1987: 777.

Taxonomic remarks. Schnabl in Schnabl & Dziedzicki (1911) described ignotaeformis View in CoL from four males collected in Poland: Ż wir (Warsaw area) 3–16 April on flowering Salix caprea . Schnabl made the keen observation that this small blackish anthomyiid superficially resembles Pegoplata infirma (Meigen) View in CoL [then known as ‘ ignota Rondani’], but is more closely related to Paradelia intersecta (Meigen) View in CoL based on genitalia structure. Even if the syntypes of ignotaeformis View in CoL were lost during WW2, the excellent original illustrations of the male terminalia, including a photomicrograph of sternite V, leave no doubt about the identity of the species. Still, ignotaeformis View in CoL remained unrecognized until Hennig (1972) redescribed it on basis of a male in Deutsche Entomologische Institut, Eberswalde from Germany: Pichelsberg (Berlin), 9.iv.1898, leg. L. Oldenberg.

Description. Small (WL 3.6mm; n=1), reminiscent of P. intersecta but differing from it as follows:

Male. More blackish in general appearance. Most parts of body sparsely greyish black to brownish black dusted, only lighter grey on postpronotal calli and anterior mesonotum. Wing infuscated, calyptrae much paler, whitish. Haltere dark brown infuscated. Abdomen wholly matt blackish with barely visible mid-dorsal stripe.

Hind tibia with 2 ad setae. Sternite V ( Figs. 82, 83 View FIGURES 82 – 85 ) with basal plate shorter and posterior lobes bearing a longer and apically slenderer outer lamella. Also hypopygium ( Figs. 84, 85 View FIGURES 82 – 85 ) different: epandrium less dorsally projected, cerci less convex in lateral view and surstyli of different shape in both posterior and lateral views.

Female. Unknown.

Material examined. RUSSIA [ FMNH]: Karelia rossica: Kolatselkä, 1 male 3.v.1943 (L. Tiensuu).

Distribution. A rarely collected species known only from Germany (Berlin area), Poland (Warsaw area) and as new from Russia (East Karelia).

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Anthomyiidae

Genus

Paradelia

Loc

Paradelia ignotaeformis

Michelsen, Verner 2007
2007
Loc

Pseudonupedia ignotaeformis

Griffiths 1987: 777
Hennig 1972: 437
1972
Loc

Pegomyia (Anthomyia) ignotaeformis

Schnabl 1911: 266
1911
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