Sepedon fuscipennis, Loew, 1859

Elberg, Kaupo, Rozkošný, Rudolf & Knutson, Lloyd, 2009, A review of of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae), Zootaxa 2288, pp. 51-60 : 55-56

publication ID

https://doi.org/ 10.5281/zenodo.191317

DOI

https://doi.org/10.5281/zenodo.6216440

persistent identifier

https://treatment.plazi.org/id/039F8602-D568-D00E-5F93-0D6197DFFD36

treatment provided by

Plazi

scientific name

Sepedon fuscipennis
status

 

S. fuscipennis Loew, 1859 View in CoL

( Figs 9, 13, 17 View FIGURES 8 – 19 )

S. fuscipennis nobilis Orth, 1986 View in CoL

Diagnosis. A yellowish-brown species with a short, drop-like orbital spot; deeply concave face in lateral view; pedicel index about 4.5; hypandrium not produced basally in lateral view ( Fig. 9 View FIGURES 8 – 19 ); aedeagus: midprojection absent; distiphallus about as long as epiphallus ( Fig. 13 View FIGURES 8 – 19 ); and epiphallus bilobate below apex ( Fig. 17 View FIGURES 8 – 19 ).

Remarks. Orth (1986) stated that S. fuscipennis consists actually of two subspecies, the nominate form and S. fuscipennis nobilis as well as intermediate specimens. Differences concern the orbital spot and the male genitalia, especially the size and shape of the aedeagus. He also tried to delimit the distribution of both subspecies in North America and found that intermediate specimens occur in a narrow band between them at approximately 41° latitude from the east coast to 105° longitude in Kansas. But four years later Manguin (1990) tested genetic data of all three populations and came to the conclusion that because the degree of similarity is high (0.92–0.99) all populations belong to the same species showing a geographic cline in several character states rather than a well-defined subspecies. However, she did not formally synonymize the subspecies.

Distribution. This is the most widely distributed Sepedon in North America known from Alaska and northern Canada to southern Texas and Florida (map: Orth 1986).

Material examined. UNITED STATES: New Jersey, Clementon Co., 1.v.1904, 1 3; Washington, D. C., 28.vii.1906, 1 Ƥ, W.L. McAtee; Michigan, Washtenaw Co., Little Portage Lake, 7.x. 1937, 1 3, I. J. Cantrall; Oregon, Yamhill Co., 5 miles S of Dayton, Holdrige Creek, 11.vii.1970, 1 3, T. W. Fisher & R.E. Orth; Washington, Thurston Co., 15 miles N of Centralia, 19.vi.1969, 1 Ƥ, R. E. Orth (all USNM)..

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Sciomyzidae

Genus

Sepedon

Loc

Sepedon fuscipennis

Elberg, Kaupo, Rozkošný, Rudolf & Knutson, Lloyd 2009
2009
Loc

S. fuscipennis nobilis

Orth 1986
1986
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