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Ichneumonid wasps (Hymenoptera: Ichneumonidae): their classification and biology
The hymenopteran family Ichneumonidae compriises one of the largest single animal families. With around 2,300 British species, almost 10% of British insect species are ichneumonids. They can be found everywhere and studying them is very rewarding, but it is not without its difficulties. This book provides an extensively illustrated key...Broad, Gavin R ; Shaw, Mark R ; Fitton, M G