RES Handbook Vol 7 Part 11. Classification & biology of braconid wasps (Hymenoptera: Braconidae)

Hymenoptera constitute one of the largest and most successful orders of insects. The order is divided into two sub-orders, Symphyta (sawfiies) and Apocrita. The larger of these is Apocrita, which is best known to the layman for the remarkable levels of social organisation attained by some species of bees, wasps and ants, the so-called aculeate Hymenoptera. However, apocritans are of at least equally great significance and interest on account of the parasitoid lineages that have evolved as the so-called parasitic Hymenoptera. In fact, these two groups are rather arbitrary divisions of the sub-order Apocrita, and have much in common with one another biologically, as is stressed by Gauld & Bolton (1988) in their comprehensive introductory account of the biology and systematics of the order Hymenoptera.
M. R. Shaw & T. Huddleston
Available as: 
res handbooks out of print