Wieczorek, K. and Junkiert, Łukasz 2011. Description of sexuales of Periphyllus singeri (Börner) (Hemiptera, Aphidoidea: Chaitophorinae). Zootaxa. 2872, 1 (May 2011), 63–68. DOI:https://doi.org/10.11646/zootaxa.2872.1.6.