Since iridoviruses, like ascoviruses and other virus species [44, 45] , are, in some cases, vectored by parasitic wasps, databases were mined using all the available ichnovirus virus proteins as queries. We found no significant relationships between CsIV, HfIV and TrIV genomes and genomes of their putative closest relatives NCLDV and non-NCLDV relatives. This indicates that passive lateral gene transfers from virus to eukaryotes that are successfully spread and maintained in ichnovirus genomes remain rare events. One case of such lateral transfer was described in the CcBV genome. In this genome, aside from the presence of cardinal endogenous eukaryotic retrotranposon and Polintons that transposed in the chromosomal DNA of the proviral form of CcBV [46] [47] [48] , two genes encoding AcMNPV P94-related proteins, which have their closest relatives among granuloviruses (XcGV), were found. This suggests that CcBV contained at least two cases of lateral transfers between non-NCLDV and a bracovirus.