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Dear hoverly lovers,
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Can anybody provide my the following two papers?
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Stackelberg, А. А. 1958. List of Diptera of the Leningrad Region. IV.
<br>Syrphidae. Proceedings of the Zoological Institute of the Russian
<br>Academy of Sciences, 24: 192–246. [In Russian]
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Zimina, L. V. 1986. Additional data on Syrphid fauna (Diptera, Syrphidae)
<br>in Moscow region. Bulletin of Moscow Society of Naturalists.
<br>Biological series, 91 (2): 55–58. [In Russian]
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And who can provide me a digital copy of
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Sack, P. 1931. Die Fliegen der Palearctischen region 31 (451p).
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Tanks in advance!
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<span style="color: rgb(128, 0, 128); font-family: Arial; font-size: 11pt;">With kindly regards</span>
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<span style="color: rgb(128, 0, 128); font-family: Arial; font-size: 11pt;">Leendert-Jan van der Ent</span>
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