References
- Cushman , R. A. 1917 . A revision of hymenopterous insects of the tribe Cremastini of America north of Mexico . Proc. U.S. nat. Mus. , 53 : 503 – 561 .
- Cushman , R. A. 1920 . North American ichneumon-flies, new and described, with taxonomic and nomenclatorial notes . Proc. U.S. nat. Mus. , 58 : 251 – 292 .
- Holmgren , A. E. 1860 . Försök till uppställning och beskrifning av de i Sverige funna Ophionider [Monographia Ophionidum Sueciae] . K. Svensk Vet.-Akad. Handl. , 2 ( 8 ) : 1 – 158 .
- Richards , O. W. 1956 . Hymenoptera, Introduction and Key to Families . Handbooks for the identification of British Insects , 6 ( 1 ) : 1 – 94 . London, Royal Entomological Society
- Thomson , C. G. 1890 . Opuscula Entomologica fasc. 14. Lundae.
- Townes , H. K. 1958. . Hymonoptera: Ichneumonidae, Stophanidae and Evaniidae . Insects of Micronesia , 19 ( 2 ) : 35 – 87 . Honolulu, Bernice P. Bishop Museum