Additions and corrections to “The Muscidae of Central Europe” II. Two new species of Spilogona (Diptera, Muscidae) |
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Authors: | František Gregor Rudolf Rozkošný |
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Institution: | (1) Loosova 14, CZ-63800 Brno, Czech Republic;(2) Faculty of Science, Department of Zoology and Ecology, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic |
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Abstract: | Two species of Spilogona, S. angustigena sp. n. and S. tatrica sp. n., are described from the Czech Republic and Slovakia, respectively. Both species are characterised by a gynaecomorphic
shape of the male head, i.e., by a broad frons and the presence of a pair of orbital setae. Three species with this type of
head are already known in the Palaearctic region: S. karelica (Tiensuu, 1935) from Russian Karelia, S. lapponica (Ringdahl, 1932) occurring in Norway and Sweden and redescribed here from material collected recently in Russia and Sweden,
and S. spinicosta (Stein, 1907) from Tibet. All five species are compared and a new identification key is given. Apart from the external similarity
of the male heads, the species under study are hardly closely related and their dichoptic heads may be explained as a homoplasy
among similar ecomorpha. |
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Keywords: | Spilogona angustigena sp n S tatrica sp n Muscidae Diptera Czech Republic Russia Slovakia Sweden gynaecomorphic males ecomorphism |
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