A very rare and classic entomological work of great nomenclatorial and aesthetical value. Many species are new. The fine illustrations by the French artist and engraver Paul Chrétien Romain Constant Duménil (1779-1859) are delicately hand-coloured and occasionally augmented with silver and gum arabic. Duménil was one of the foremost natural history illustrators and engravers of his time. The author, Jean Baptiste Alphonse Boisduval (1799-1879) was keeper of the entomological collection of the great French entomologist Comte Pierre François Marie Auguste Dejean (1780-1845), and an authority on butterflies and moths. Issued in 42 parts, and seldom found complete. There is only one auction record - in 1963. Publication started in 1832 and was ended - after some delay - in 1841, although the second title page bears the year 1834. The plate numbering is a bit erratic but the plate order agrees with the text. Some irregular age-toning or foxing to a few plates, but most plates quite clean. A very good copy with excellent colouring. Hagen I, p. 64; Horn-Schenkling 1800; Nissen ZBI, 449.