is now online augmented with images from Morphbank. Images in the key are maintained in the Morphbank database and link back to image, annotation and collection records.
This key created by Eric E. Grissell and Michael E. Schauff to the families of Chalcidoidea was first published in 1990 by the Entomological Society of Washington and remains a widely used tool for chalcid wasp identification. Dr Michael Gates at the USDA-ARS Systematic Entomology Laboratory and Katja Seltmann from morphbank placed this valuable key online and are continuing to add full color images. Hosted by the Hymenoptera Assembling the Tree of Life Project.