Author: Pulkkinen, A., 1931.:
Title: Suomen elämet. / Animalia Fennica. 1. Myrkkypistiäiset / Hymenoptera Aculeata. I. Petiopistiäiset, Sphecidae.
Description: Porvoo: W. Söderström. Small 8vo. Pp. 168, 99 (partly composite) figs., index. Orig. wrs. Front cover with trace of wear, contents good. - Finnish text.

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