1925-1934 Two volumes in two. 1213 [594, 607, xii] p., 3 plates, near uniform original half calf. Spines with four raised bands, top edge dyed blue. Volume one with gilt title, volume II with silver title. Scarce set of a hymenopterological catalogue of Braconidae from the Palaearctic region. With good keys and detailed descriptions. The second volume has "Vorwort zum III. Bande", but this is because Band II from the series does not deal with palaearctic species. A few pages with short (8 mm) marginal tears, else a good and well bound set of these scarce volumes.
1925-1937 Four volumes. 2388 p., 5 plates, half cloth (original printed covers bound in). Library stamps, title-pages of volumes 1-3 bound in middle of next volume (in other words title-page volume one is to be found in volume two, title-page of volume four is missing? A nice set.Rare completeand well bound set of a hymenopterological catalogue of all Braconidae from the Palaearctic and Ethiopean (i.e. tropical sub-Saharan, or Afrotropical) region known up till then. With good keys and detailed descriptions. About 50 to 60 Lieferungen were projected, but in all 31 (in 14 parts) were published. Uncut.
1925-1937 Four volumes in 14 parts. 2388 p., 5 plates, paperbound (uniform original printed covers). Rare complete set of a hymenopterological catalogue of all Braconidae from the Palaearctic and Ethiopean (i.e. tropical sub-Saharan, or Afrotropical) region known up till then. With good keys and detailed descriptions. About 50 to 60 Lieferungen were projected, but in all 31 (in 14 parts) were published. Uncut. Several spines worn and creased, some covers detached and a bit soiled. Band IV, Lieferung 1-3 has several pages with dampstaining, and plate and caption of the plate with waterdamage (but without loss of text or figures).