Identification key to the subfamilies of Ichneumonidae (Hymenoptera) by Gavin Broad of the Dept. of Entomology, The Natural History Museum.
This key is a 9MB pdf and a little complicated to use without a specimen.
Identifying ichneumonids can be a daunting process, with about 2,400 species in Britain and Ireland. These are currently classified into 32 subfamilies (there are a few more extralimitally). Rather few of these subfamilies are reconisable on the basis of simple morphological character states, rather, they tend to be reconisable on combinations of characters that occur convergently and in different permutations across various groups of ichneumonids.
English
Français
