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A Digital Reference Collection for the Sepsidae of the World

Ortalischema albitarse (Zetterstedt, 1847)

(Originally described as Sepsis)

Male

Specimen Photo Medium Resolution

Ortalischema albitarse. Male alcohol-vouchered specimen.

Deposited at:  Evolutionary Biology Laboratory, National University of Singapore (Singapore)

Yuchen Ang
C
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Diagnosis

Diagnosis Image

Diagnostic illustrations for adults

Adapted from:

Pont AC & Meier R (2002). The Sepsidae (Diptera) of Europe. Brill: 1-188.

Adult Ortalischema albitarse can be distinguished from all other European and Palaearctic genera by the absence of the postocellar seta. Of note are also the distinctive male fore-tarsi and hirsute genitalia. [Addenum from Y. Ang: it can be further distinguished from O. maritima based on 2nd tarsomere on the foreleg, which is (i) more swollen, (ii) darkened at least on the apical half and (iii) its one/two apical setae are enlarged and flattened.]

Source:

Pont AC & Meier R (2002). The Sepsidae (Diptera) of Europe. Brill: 1-188.

Morphoglossary

HeadThoraxAbdomen(Male)Abdomen(Female)

Taxonomy Information

Classification

Sepsidae: Orygmatinae: Ortalischema

Synonyms

ORTALISCHEMA ALBITARSE Zetterstedt 1847 (as Sepsis). Norway: ad diversorium Thynaes in paroecia Skogn. Holotype ♀, in Zoological Museum, University of Lund, Lund, Sweden.

rossica Frey 1918 (as Enicita). Russia: not stated [from title: RUSSIA, Arkhangel’sk]. Holotype ♂, in Zoological Museum, University of Helsinki, Helsinki, Finland.

Source:

Ozerov 2005, World Catalogue of the Family Sepsidae (Insecta: Diptera), Zoologicheskie issledovania 8.

Distribution

Palaearctic (Asia): Japan (Hokkaido Is.), Kyrgyzstan, Mongolia, Russia (Altay, Chelyabinskaya Oblast’, Irkutskaya Oblast’).

Palaearctic (Europe): Finland, Hungary, Italy, Norway, Russia (Alania, Arkhangel’skaya Oblast’, Leningradskaya Oblast’), Sweden, Ukraine.

Source:

Ozerov 2005, World Catalogue of the Family Sepsidae (Insecta: Diptera), Zoologicheskie issledovania 8.

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