BioStor
 | A preliminary review of the classification of the order Strepsiptera W D Pierce (1908) Proceedings of the Entomological Society of Washington 9: 75-85 |
 | Hymenoptera from Turkey. Sphecidae. 1. With appendix Sphex Linné, subgenus Palinodes Kohl, by P. Roth J De Beaumont (1967) Bulletin of the British Museum (Natural History) Entomology 19(5): 251-382 |