Comparative serology of viruses isolated from ichneumonid parasitoids

Serological relationships among viruses isolated from the ovaries of some ichneumonid wasps have been examined by immunoblotting. An antiserum prepared against purified Hyposoter exiguae virus reacted with polypeptides of calyx fluids isolated from species belonging to several different ichneumonid genera. Significant cross-reactions, however, were confined to three genera and usually involved only two to four polypeptides.