Junkiert, Łukasz, & Wieczorek, K. (2019). Description of the previously unknown morphs of Periphyllus koelreuteriae (Takahashi) (Hemiptera, Aphididae: Chaitophorinae) . Zootaxa, 4585(2), 360–368. https://doi.org/10.11646/zootaxa.4585.2.9