BioStor
 | Classification of the Ichneumon flies, or the superfamily Ichneumonoidea Willam H Ashmead (1900) Proceedings of the U.S. National Museum 23(1206): 1-220 |
 | The species of Asaphes Walker from America north of Mexico, with remarks on extralimital distributions and taxa (Hymenoptera: Chalcidoidea, Pteromalidae) G A P Gibson and V Vikberg (1998) Journal of Hymenoptera Research 7: 209-256 |