Wespen - beobachten, bestimmen (Wasps - observing, identifying)By Rolf Witt
Naturbuch Verlag, Augsburg, Germany, 1998
This well illustrated pocket-sized book of 360 pages is divided into a General Part describing wasps as a group (pages 9 - 79) and a Special Part (pages 80 - 336) giving keys to Vespidae, Crabronidae, Sphecidae etc. and their nests as well as illustrated descriptions of Embolemidae, Dryinidae, Bethylidae, Chrysididae, Sapygidae, Tiphiidae, Myrmosidae, Scoliidae, Mutillidae, Vespidae (incl. Polistinae, Vespinae, Masarinae, Eumeninae), Pompilidae, Crabronidae, Sphecidae. The illustrated decriptions of selected species include info on body length, range, habitats, phenology (months of appearance), biology incl.