1988 xxiv, 615 p., numerous figures, hardbound. Library stamps, else very good copy.
1994 xvi, 582 p. num. figs, 4to, hardbound. Number written on lower end spine, else very good copy.This is volume 50 of Series Entomologica. The book is divided into eight sections, viz. palaeontology, larvae and larval biology, trophic selection, genetics and evolution, defense mechanisms, anatomy and reproduction, pathogens, phoretics and natural enemies, and general studies in biology. Ex library copy with a stamp on the front flyleaf, half-title and title page.