1878 Two parts in two. 16 p. [= pp. 41-48, 49-56], 8 plates [= 26, 28-29, 31-35], roy. 4to (ca. 32.0 x 25 cm), original uniform printed wrappers.One of the finest hymenopterological works with stunningly beautiful illustrations, however only two parts of a work that was published in nine parts (of a projected 24) with 45 plates. These are the parts 6 and 7, the first with three of five plates, the latter complete. Text in two columns, English and Dutch. Wrappers chipped and loose, otherwise good. Rare. Nissen ZBI, 4287
1861 2 vols (complete). 558 p, num. figs, 35 lithographed pls, contemporary hcloth. Some slight scattered foxing, small waterstain in upper left corner of last few plates.
1870 457 p., 251 figs, frontispiece, publisher’s green cloth (spine gilt). some slight wear on upper end one joint. Ex library P. van der Wiel (with his ex libris featuring a stag beetle).
1863 3, 60 p. 4 beautiful handcoloured plts, 4to, paperbound (original printed covers ). Spine worn, partly loose.
1863 The Hague, Martinus Nijhoff, 1863 : In-4 Carré, Broché. 60 pp., 2 ff. n. ch. (table alphabétique des espèces, explication des planches), 4 planches en couleurs hors-texte, dérelié, de toute rareté ! Bon état, Couv. convenable, Dos satisfaisant, Quelques rousseurs.
1870 457 p., 251 figs, frontispiece, contemporary hcalf (somewhat rubbed).
1878 32 p., 2 (1 partly col.) pls, disbound (no covers). Published in: Tijdschrift voor Entomologie.
1870 457 p., 251 figs, frontispiece, publisher’s green cloth (spine gilt). Rebacked copy.