Reference
Yulia V. Astafurova, Maxim Yu. Proshchalykin, Maximilian Schwarz (2018): The cuckoo bee genus Sphecodes Latreille, 1804 (Hymenoptera, Halictidae) in Iran. - Journal of Hymenoptera Research 66 – Monografien Entomologie Hymenoptera – 0284: 39 - 53.